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17 results on '"Qiao, R. Y."'

1. A single fast radio burst localized to a massive galaxy at cosmological distance

Author

Bannister, K. W., Deller, A. T., Phillips, C., Macquart, J. -P., Prochaska, J. X., Tejos, N., Ryder, S. D., Sadler, E. M., Shannon, R. M., Simha, S., Day, C. K., McQuinn, M., North-Hickey, F. O., Bhandari, S., Arcus, W. R., Bennert, V. N., Burchett, J., Bouwhuis, M., Dodson, R., Ekers, R. D., Farah, W., Flynn, C., James, C. W., Kerr, M., Lenc, E., Mahony, E. K., O'Meara, J., Osłowski, S., Qiu, H., Treu, T., U, V., Bateman, T. J., Bock, D. C. -J., Bolton, R. J., Brown, A., Bunton, J. D., Chippendale, A. P., Cooray, F. R., Cornwell, T., Gupta, N., Hayman, D. B., Kesteven, M., Koribalski, B. S., MacLeod, A., McClure-Griffiths, N. M., Neuhold, S., Norris, R. P., Pilawa, M. A., Qiao, R. -Y., Reynolds, J., Roxby, D. N., Shimwell, T. W., Voronkov, M. A., and Wilson, C. D.

Subjects
Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Fast Radio Bursts (FRBs) are brief radio emissions from distant astronomical sources. Some are known to repeat, but most are single bursts. Non-repeating FRB observations have had insufficient positional accuracy to localize them to an individual host galaxy. We report the interferometric localization of the single pulse FRB 180924 to a position 4 kpc from the center of a luminous galaxy at redshift 0.3214. The burst has not been observed to repeat. The properties of the burst and its host are markedly different from the only other accurately localized FRB source. The integrated electron column density along the line of sight closely matches models of the intergalactic medium, indicating that some FRBs are clean probes of the baryonic component of the cosmic web., Comment: Published online in Science 27 June 2019

Published
2019
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2. The Australian Square Kilometre Array Pathfinder: Performance of the Boolardy Engineering Test Array

Author

McConnell, D., Allison, J. R., Bannister, K., Bell, M. E., Bignall, H. E., Chippendale, A. P., Edwards, P. G., Harvey-Smith, L., Hegarty, S., Heywood, I., Hotan, A. W., Indermuehle, B. T., Lenc, E., Marvil, J., Popping, A., Raja, W., Reynolds, J. E., Sault, R. J., Serra, P., Voronkov, M. A., Whiting, M., Amy, S. W., Axtens, P., Ball, L., Bateman, T. J., Bock, D. C. -J., Bolton, R., Brodrick, D., Brothers, M., Brown, A. J., Bunton, J. D., Cheng, W., Cornwell, T., DeBoer, D., Feain, I., Gough, R., Gupta, N., Guzman, J. C., Hampson, G. A., Hay, S., Hayman, D. B., Hoyle, S., Humphreys, B., Jacka, C., Jackson, C. A., Jackson, S., Jeganathan, K., Joseph, J., Koribalski, B. S., Leach, M., Lensson, E. S., MacLeod, A., Mackay, S., Marquarding, M., McClure-Griffiths, N. M., Mirtschin, P., Mitchell, D., Neuhold, S., Ng, A., Norris, R., Pearce, S., Qiao, R. Y., Schinckel, A. E. T., Shields, M., Shimwell, T. W., Storey, M., Troup, E., Turner, B., Tuthill, J., Tzioumis, A., Wark, R. M., Westmeier, T., Wilson, C., and Wilson, T.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

We describe the performance of the Boolardy Engineering Test Array (BETA), the prototype for the Australian Square Kilometre Array Pathfinder telescope ASKAP. BETA is the first aperture synthesis radio telescope to use phased array feed technology, giving it the ability to electronically form up to nine dual-polarization beams. We report the methods developed for forming and measuring the beams, and the adaptations that have been made to the traditional calibration and imaging procedures in order to allow BETA to function as a multi-beam aperture synthesis telescope. We describe the commissioning of the instrument and present details of BETA's performance: sensitivity, beam characteristics, polarimetric properties and image quality. We summarise the astronomical science that it has produced and draw lessons from operating BETA that will be relevant to the commissioning and operation of the final ASKAP telescope., Comment: Accepted for publication in PASA

Published
2016
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3. Wide-field broadband radio imaging with phased array feeds: a pilot multi-epoch continuum survey with ASKAP-BETA

Author

Heywood, I., Bannister, K. W., Marvil, J., Allison, J. R., Ball, L., Bell, M. E., Bock, D. C. -J., Brothers, M., Bunton, J. D., Chippendale, A. P., Cooray, F., Cornwell, T. J., DeBoer, D., Edwards, P., Gough, R., Gupta, N., Harvey-Smith, L., Hay, S., Hotan, A. W., Indermuehle, B., Jacka, C., Jackson, C. A., Johnston, S., Kimball, A. E., Koribalski, B. S., Lenc, E., Macleod, A., McClure-Griffiths, N., McConnell, D., Mirtschin, P., Murphy, T., Neuhold, S., Norris, R. P., Pearce, S., Popping, A., Qiao, R. Y., Reynolds, J. E., Sadler, E. M., Sault, R. J., Schinckel, A. E. T., Serra, P., Shimwell, T. W., Stevens, J., Tuthill, J., Tzioumis, A., Voronkov, M. A., Westmeier, T., and Whiting, M. T.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The Boolardy Engineering Test Array is a 6 x 12 m dish interferometer and the prototype of the Australian Square Kilometre Array Pathfinder (ASKAP), equipped with the first generation of ASKAP's phased array feed (PAF) receivers. These facilitate rapid wide-area imaging via the deployment of simultaneous multiple beams within a 30 square degree field of view. By cycling the array through 12 interleaved pointing positions and using 9 digitally formed beams we effectively mimic a traditional 1 hour x 108 pointing survey, covering 150 square degrees over 711 - 1015 MHz in 12 hours of observing time. Three such observations were executed over the course of a week. We verify the full bandwidth continuum imaging performance and stability of the system via self-consistency checks and comparisons to existing radio data. The combined three epoch image has arcminute resolution and a 1-sigma thermal noise level of 375 micro-Jy per beam, although the effective noise is a factor 3 higher due to residual sidelobe confusion. From this we derive a catalogue of 3,722 discrete radio components, using the 35 percent fractional bandwidth to measure in-band spectral indices for 1,037 of them. A search for transient events reveals one significantly variable source within the survey area. The survey covers approximately two-thirds of the Spitzer South Pole Telescope Deep Field. This pilot project demonstrates the viability and potential of using PAFs to rapidly and accurately survey the sky at radio wavelengths., Comment: 20 pages, 13 figures, 4 tables. Accepted for publication in MNRAS

Published
2016
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4. A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907

Author

Hobbs, G., Heywood, I., Bell, M. E., Kerr, M., Rowlinson, A., Johnston, S., Shannon, R. M., Voronkov, M. A., Ward, C., Banyer, J., Hancock, P. J., Murphy, Tara, Allison, J. R., Amy, S. W., Ball, L., Bannister, K., Bock, D. C. -J., Brodrick, D., Brothers, M., Brown, A. J., Bunton, J. D., Chapman, J., Chippendale, A. P., Chung, Y., DeBoer, D., Diamond, P., Edwards, P. G., Ekers, R., Ferris, R. H., Forsyth, R., Gough, R., Grancea, A., Gupta, N., Harvey-Smith, L., Hay, S., Hayman, D. B., Hotan, A. W., Hoyle, S., Humphreys, B., Indermuehle, B., Jacka, C. E., Jackson, C. A., Jackson, S., Jeganathan, K., Joseph, J, Kendall, R., Kiraly, D., Koribalski, B., Leach, M., Lenc, E., MacLeod, A., Mader, S., Marquarding, M., Marvil, J., McClure-Griffiths, N., McConnell, D., Mirtschin, P., Neuhold, S., Ng, A., Norris, R. P., O'Sullivan, J., Pearce, S., Phillips, C. J., Popping, A., Qiao, R. Y., Reynolds, J. E., Roberts, P., Sault, R. J., Schinckel, A. E. T., Serra, P., Shaw, R., Shimwell, T. W., Storey, M., Sweetnam, A. W., Tzioumis, A., Westmeier, T., Whiting, M., and Wilson, C. D.

Subjects
Astrophysics - Solar and Stellar Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

We use observations from the Boolardy Engineering Test Array (BETA) of the Australian Square Kilometre Array Pathfinder (ASKAP) telescope to search for transient radio sources in the field around the intermittent pulsar PSR J1107-5907. The pulsar is thought to switch between an "off" state in which no emission is detectable, a weak state and a strong state. We ran three independent transient detection pipelines on two-minute snapshot images from a 13 hour BETA observation in order to 1) study the emission from the pulsar, 2) search for other transient emission from elsewhere in the image and 3) to compare the results from the different transient detection pipelines. The pulsar was easily detected as a transient source and, over the course of the observations, it switched into the strong state three times giving a typical timescale between the strong emission states of 3.7 hours. After the first switch it remained in the strong state for almost 40 minutes. The other strong states lasted less than 4 minutes. The second state change was confirmed using observations with the Parkes radio telescope. No other transient events were found and we place constraints on the surface density of such events on these timescales. The high sensitivity Parkes observations enabled us to detect individual bright pulses during the weak state and to study the strong state over a wide observing band. We conclude by showing that future transient surveys with ASKAP will have the potential to probe the intermittent pulsar population., Comment: Accepted by MNRAS

Published
2015
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5. ASKAP HI imaging of the galaxy group IC 1459

Author

Serra, P., Koribalski, B., Kilborn, V., Allison, J. R., Amy, S. W., Ball, L., Bannister, K., Bell, M. E., Bock, D. C. -J., Bolton, R., Bowen, M., Boyle, B., Broadhurst, S., Brodrick, D., Brothers, M., Bunton, J. D., Chapman, J., Cheng, W., Chippendale, A. P., Chung, Y., Cooray, F., Cornwell, T., DeBoer, D., Diamond, P., Forsyth, R., Gough, R., Gupta, N., Hampson, G. A., Harvey-Smith, L., Hay, S., Hayman, D. B., Heywood, I., Hotan, A. W., Hoyle, S., Humphreys, B., Indermuehle, B., Jacka, C., Jackson, C. A., Jackson, S., Jeganathan, K., Johnston, S., Joseph, J, Kamphuis, P., Leach, M., Lenc, E., Lensson, E., Mackay, S., Marquarding, M., Marvil, J., McClure-Griffiths, N., McConnell, D., Meyer, M., Mirtschin, P., Neuhold, S., Ng, A., Norris, R. P., O'Sullivan, J., Pathikulangara, J., Pearce, S., Phillips, C., Popping, A., Qiao, R. Y., Reynolds, J. E., Roberts, P., Sault, R. J., Schinckel, A. E. T., Shaw, R., Shimwell, T. W., Staveley-Smith, L., Storey, M., Sweetnam, A. W., Troup, E., Tzioumis, A., Voronkov, M. A., Westmeier, T., Whiting, M., Wilson, C., Wong, O. I., and Wu, X.

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

We present HI imaging of the galaxy group IC 1459 carried out with six antennas of the Australian SKA Pathfinder equipped with phased-array feeds. We detect and resolve HI in eleven galaxies down to a column density of $\sim10^{20}$ cm$^{-2}$ inside a ~6 deg$^2$ field and with a resolution of ~1 arcmin on the sky and ~8 km/s in velocity. We present HI images, velocity fields and integrated spectra of all detections, and highlight the discovery of three HI clouds -- two in the proximity of the galaxy IC 5270 and one close to NGC 7418. Each cloud has an HI mass of $10^9$ M$_\odot$ and accounts for ~15% of the HI associated with its host galaxy. Available images at ultraviolet, optical and infrared wavelengths do not reveal any clear stellar counterpart of any of the clouds, suggesting that they are not gas-rich dwarf neighbours of IC 5270 and NGC 7418. Using Parkes data we find evidence of additional extended, low-column-density HI emission around IC 5270, indicating that the clouds are the tip of the iceberg of a larger system of gas surrounding this galaxy. This result adds to the body of evidence on the presence of intra-group gas within the IC 1459 group. Altogether, the HI found outside galaxies in this group amounts to several times $10^9$ M$_\odot$, at least 10% of the HI contained inside galaxies. This suggests a substantial flow of gas in and out of galaxies during the several billion years of the group's evolution., Comment: MNRAS accepted

Published
2015
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6. Discovery of HI gas in a young radio galaxy at $z = 0.44$ using the Australian Square Kilometre Array Pathfinder

Author

Allison, J. R., Sadler, E. M., Moss, V. A., Whiting, M. T., Hunstead, R. W., Pracy, M. B., Curran, S. J., Croom, S. M., Glowacki, M., Morganti, R., Shabala, S. S., Zwaan, M. A., Allen, G., Amy, S. W., Axtens, P., Ball, L., Bannister, K. W., Barker, S., Bell, M. E., Bock, D. C. -J., Bolton, R., Bowen, M., Boyle, B., Braun, R., Broadhurst, S., Brodrick, D., Brothers, M., Brown, A., Bunton, J. D., Cantrall, C., Chapman, J., Cheng, W., Chippendale, A. P., Chung, Y., Cooray, F., Cornwell, T., DeBoer, D., Diamond, P., Edwards, P. G., Ekers, R., Feain, I., Ferris, R. H., Forsyth, R., Gough, R., Grancea, A., Gupta, N., Guzman, J. C., Hampson, G., Harvey-Smith, L., Haskins, C., Hay, S., Hayman, D. B., Heywood, I., Hotan, A. W., Hoyle, S., Humphreys, B., Indermuehle, B. T., Jacka, C., Jackson, C., Jackson, S., Jeganathan, K., Johnston, S., Joseph, J., Kendall, R., Kesteven, M., Kiraly, D., Koribalski, B. S., Leach, M., Lenc, E., Lensson, E., Mackay, S., Macleod, A., Marquarding, M., Marvil, J., McClure-Griffiths, N., McConnell, D., Mirtschin, P., Norris, R. P., Neuhold, S., Ng, A., O'Sullivan, J., Pathikulangara, J., Pearce, S., Phillips, C., Popping, A., Qiao, R. Y., Reynolds, J. E., Roberts, P., Sault, R. J., Schinckel, A., Serra, P., Shaw, R., Shields, M., Shimwell, T., Storey, M., Sweetnam, T., Troup, E., Turner, B., Tuthill, J., Tzioumis, A., Voronkov, M. A., Westmeier, T., and Wilson, C. D.

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

We report the discovery of a new 21-cm HI absorption system using commissioning data from the Boolardy Engineering Test Array of the Australian Square Kilometre Array Pathfinder (ASKAP). Using the 711.5 - 1015.5 MHz band of ASKAP we were able to conduct a blind search for the 21-cm line in a continuous redshift range between $z = 0.4$ and 1.0, which has, until now, remained largely unexplored. The absorption line is detected at $z = 0.44$ towards the GHz-peaked spectrum radio source PKS B1740$-$517 and demonstrates ASKAP's excellent capability for performing a future wide-field survey for HI absorption at these redshifts. Optical spectroscopy and imaging using the Gemini-South telescope indicates that the HI gas is intrinsic to the host galaxy of the radio source. The narrow OIII emission lines show clear double-peaked structure, indicating either large-scale outflow or rotation of the ionized gas. Archival data from the \emph{XMM-Newton} satellite exhibit an absorbed X-ray spectrum that is consistent with a high column density obscuring medium around the active galactic nucleus. The HI absorption profile is complex, with four distinct components ranging in width from 5 to 300 km s$^{-1}$ and fractional depths from 0.2 to 20 per cent. In addition to systemic HI gas, in a circumnuclear disc or ring structure aligned with the radio jet, we find evidence for a possible broad outflow of neutral gas moving at a radial velocity of $v \sim 300$ km s$^{-1}$. We infer that the expanding young radio source ($t_{\rm age} \approx 2500$ yr) is cocooned within a dense medium and may be driving circumnuclear neutral gas in an outflow of $\sim$ 1 $\mathrm{M}_{\odot}$ yr$^{-1}$., Comment: 18 pages, 11 figures, accepted for publication in MNRAS

Published
2015
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7. A single fast radio burst localized to a massive galaxy at cosmological distance

Author

Bannister, K. W., primary, Deller, A. T., additional, Phillips, C., additional, Macquart, J.-P., additional, Prochaska, J. X., additional, Tejos, N., additional, Ryder, S. D., additional, Sadler, E. M., additional, Shannon, R. M., additional, Simha, S., additional, Day, C. K., additional, McQuinn, M., additional, North-Hickey, F. O., additional, Bhandari, S., additional, Arcus, W. R., additional, Bennert, V. N., additional, Burchett, J., additional, Bouwhuis, M., additional, Dodson, R., additional, Ekers, R. D., additional, Farah, W., additional, Flynn, C., additional, James, C. W., additional, Kerr, M., additional, Lenc, E., additional, Mahony, E. K., additional, O’Meara, J., additional, Osłowski, S., additional, Qiu, H., additional, Treu, T., additional, U, V., additional, Bateman, T. J., additional, Bock, D. C.-J., additional, Bolton, R. J., additional, Brown, A., additional, Bunton, J. D., additional, Chippendale, A. P., additional, Cooray, F. R., additional, Cornwell, T., additional, Gupta, N., additional, Hayman, D. B., additional, Kesteven, M., additional, Koribalski, B. S., additional, MacLeod, A., additional, McClure-Griffiths, N. M., additional, Neuhold, S., additional, Norris, R. P., additional, Pilawa, M. A., additional, Qiao, R.-Y., additional, Reynolds, J., additional, Roxby, D. N., additional, Shimwell, T. W., additional, Voronkov, M. A., additional, and Wilson, C. D., additional

Published
2019
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8. Wide-field broad-band radio imaging with phased array feeds: a pilot multi-epoch continuum survey with ASKAP-BETA

Author

Heywood, I., primary, Bannister, K. W., additional, Marvil, J., additional, Allison, J. R., additional, Ball, L., additional, Bell, M. E., additional, Bock, D. C.-J., additional, Brothers, M., additional, Bunton, J. D., additional, Chippendale, A. P., additional, Cooray, F., additional, Cornwell, T. J., additional, De Boer, D., additional, Edwards, P., additional, Gough, R., additional, Gupta, N., additional, Harvey-Smith, L., additional, Hay, S., additional, Hotan, A. W., additional, Indermuehle, B., additional, Jacka, C., additional, Jackson, C. A., additional, Johnston, S., additional, Kimball, A. E., additional, Koribalski, B. S., additional, Lenc, E., additional, Macleod, A., additional, McClure-Griffiths, N., additional, McConnell, D., additional, Mirtschin, P., additional, Murphy, T., additional, Neuhold, S., additional, Norris, R. P., additional, Pearce, S., additional, Popping, A., additional, Qiao, R. Y., additional, Reynolds, J. E., additional, Sadler, E. M., additional, Sault, R. J., additional, Schinckel, A. E. T., additional, Serra, P., additional, Shimwell, T. W., additional, Stevens, J., additional, Tuthill, J., additional, Tzioumis, A., additional, Voronkov, M. A., additional, Westmeier, T., additional, and Whiting, M. T., additional

Published
2016
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9. A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107−5907

Author

Hobbs, G., primary, Heywood, I., additional, Bell, M. E., additional, Kerr, M., additional, Rowlinson, A., additional, Johnston, S., additional, Shannon, R. M., additional, Voronkov, M. A., additional, Ward, C., additional, Banyer, J., additional, Hancock, P. J., additional, Murphy, Tara, additional, Allison, J. R., additional, Amy, S. W., additional, Ball, L., additional, Bannister,  K., additional, Bock, D. C.-J., additional, Brodrick, D., additional, Brothers, M., additional, Brown, A. J., additional, Bunton, J. D., additional, Chapman, J., additional, Chippendale, A. P., additional, Chung, Y., additional, DeBoer, D., additional, Diamond, P., additional, Edwards, P. G., additional, Ekers, R., additional, Ferris, R. H., additional, Forsyth, R., additional, Gough, R., additional, Grancea, A., additional, Gupta, N., additional, Harvey-Smith, L., additional, Hay, S., additional, Hayman, D. B., additional, Hotan, A. W., additional, Hoyle, S., additional, Humphreys, B., additional, Indermuehle, B., additional, Jacka, C. E., additional, Jackson, C. A., additional, Jackson, S., additional, Jeganathan, K., additional, Joseph, J, additional, Kendall, R., additional, Kiraly, D., additional, Koribalski, B., additional, Leach, M., additional, Lenc, E., additional, MacLeod, A., additional, Mader, S., additional, Marquarding, M., additional, Marvil, J., additional, McClure-Griffiths, N., additional, McConnell, D., additional, Mirtschin, P., additional, Neuhold, S., additional, Ng, A., additional, Norris, R. P., additional, O'Sullivan, J., additional, Pearce, S., additional, Phillips, C. J., additional, Popping, A., additional, Qiao, R. Y., additional, Reynolds, J. E., additional, Roberts, P., additional, Sault, R. J., additional, Schinckel, A. E. T., additional, Serra, P., additional, Shaw, R., additional, Shimwell, T. W., additional, Storey, M., additional, Sweetnam, A. W., additional, Tzioumis, A., additional, Westmeier, T., additional, Whiting, M., additional, and Wilson, C. D., additional

Published
2016
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10. The Australian Square Kilometre Array Pathfinder: Performance of the Boolardy Engineering Test Array

Author

McConnell, D., primary, Allison, J. R., additional, Bannister, K., additional, Bell, M. E., additional, Bignall, H. E., additional, Chippendale, A. P., additional, Edwards, P. G., additional, Harvey-Smith, L., additional, Hegarty, S., additional, Heywood, I., additional, Hotan, A. W., additional, Indermuehle, B. T., additional, Lenc, E., additional, Marvil, J., additional, Popping, A., additional, Raja, W., additional, Reynolds, J. E., additional, Sault, R. J., additional, Serra, P., additional, Voronkov, M. A., additional, Whiting, M., additional, Amy, S. W., additional, Axtens, P., additional, Ball, L., additional, Bateman, T. J., additional, Bock, D. C.-J., additional, Bolton, R., additional, Brodrick, D., additional, Brothers, M., additional, Brown, A. J., additional, Bunton, J. D., additional, Cheng, W., additional, Cornwell, T., additional, DeBoer, D., additional, Feain, I., additional, Gough, R., additional, Gupta, N., additional, Guzman, J. C., additional, Hampson, G. A., additional, Hay, S., additional, Hayman, D. B., additional, Hoyle, S., additional, Humphreys, B., additional, Jacka, C., additional, Jackson, C. A., additional, Jackson, S., additional, Jeganathan, K., additional, Joseph, J., additional, Koribalski, B. S., additional, Leach, M., additional, Lensson, E. S., additional, MacLeod, A., additional, Mackay, S., additional, Marquarding, M., additional, McClure-Griffiths, N. M., additional, Mirtschin, P., additional, Mitchell, D., additional, Neuhold, S., additional, Ng, A., additional, Norris, R., additional, Pearce, S., additional, Qiao, R. Y., additional, Schinckel, A. E. T., additional, Shields, M., additional, Shimwell, T. W., additional, Storey, M., additional, Troup, E., additional, Turner, B., additional, Tuthill, J., additional, Tzioumis, A., additional, Wark, R. M., additional, Westmeier, T., additional, Wilson, C., additional, and Wilson, T., additional

Published
2016
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11. Erratum: Discovery of H i gas in a young radio galaxy at $\boldsymbol {z = 0.44}$ using the Australian Square Kilometre Array Pathfinder

Author

Allison, J. R., primary, Sadler, E. M., additional, Moss, V. A., additional, Whiting, M. T., additional, Hunstead, R. W., additional, Pracy, M. B., additional, Curran, S. J., additional, Croom, S. M., additional, Glowacki, M., additional, Morganti, R., additional, Shabala, S. S., additional, Zwaan, M. A., additional, Allen, G., additional, Amy, S. W., additional, Axtens, P., additional, Ball, L., additional, Bannister, K. W., additional, Barker, S., additional, Bell, M. E., additional, Bock, D. C.-J., additional, Bolton, R., additional, Bowen, M., additional, Boyle, B., additional, Braun, R., additional, Broadhurst, S., additional, Brodrick, D., additional, Brothers, M., additional, Brown, A., additional, Bunton, J. D., additional, Cantrall, C., additional, Chapman, J., additional, Cheng, W., additional, Chippendale, A. P., additional, Chung, Y., additional, Cooray, F., additional, Cornwell, T., additional, DeBoer, D., additional, Diamond, P., additional, Edwards, P. G., additional, Ekers, R., additional, Feain, I., additional, Ferris, R. H., additional, Forsyth, R., additional, Gough, R., additional, Grancea, A., additional, Gupta, N., additional, Guzman, J. C., additional, Hampson, G., additional, Harvey-Smith, L., additional, Haskins, C., additional, Hay, S., additional, Hayman, D. B., additional, Heywood, I., additional, Hotan, A. W., additional, Hoyle, S., additional, Humphreys, B., additional, Indermuehle, B. T., additional, Jacka, C., additional, Jackson, C., additional, Jackson, S., additional, Jeganathan, K., additional, Johnston, S., additional, Joseph, J., additional, Kendall, R., additional, Kesteven, M., additional, Kiraly, D., additional, Koribalski, B. S., additional, Leach, M., additional, Lenc, E., additional, Lensson, E., additional, Mackay, S., additional, Macleod, A., additional, Marquarding, M., additional, Marvil, J., additional, McClure-Griffiths, N., additional, McConnell, D., additional, Mirtschin, P., additional, Norris, R. P., additional, Neuhold, S., additional, Ng, A., additional, O'Sullivan, J., additional, Pathikulangara, J., additional, Pearce, S., additional, Phillips, C., additional, Popping, A., additional, Qiao, R. Y., additional, Reynolds, J. E., additional, Roberts, P., additional, Sault, R. J., additional, Schinckel, A., additional, Serra, P., additional, Shaw, R., additional, Shields, M., additional, Shimwell, T., additional, Storey, M., additional, Sweetnam, T., additional, Troup, E., additional, Turner, B., additional, Tuthill, J., additional, Tzioumis, A., additional, Voronkov, M. A., additional, Westmeier, T., additional, and Wilson, C. D., additional

Published
2015
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12. Discovery of H i gas in a young radio galaxy at z = 0.44 using the Australian Square Kilometre Array Pathfinder

Author

Allison, J. R., primary, Sadler, E. M., additional, Moss, V. A., additional, Whiting, M. T., additional, Hunstead, R. W., additional, Pracy, M. B., additional, Curran, S. J., additional, Croom, S. M., additional, Glowacki, M., additional, Morganti, R., additional, Shabala, S. S., additional, Zwaan, M. A., additional, Allen, G., additional, Amy, S. W., additional, Axtens, P., additional, Ball, L., additional, Bannister, K. W., additional, Barker, S., additional, Bell, M. E., additional, Bock, D. C.-J., additional, Bolton, R., additional, Bowen, M., additional, Boyle, B., additional, Braun, R., additional, Broadhurst, S., additional, Brodrick, D., additional, Brothers, M., additional, Brown, A., additional, Bunton, J. D., additional, Cantrall, C., additional, Chapman, J., additional, Cheng, W., additional, Chippendale, A. P., additional, Chung, Y., additional, Cooray, F., additional, Cornwell, T., additional, DeBoer, D., additional, Diamond, P., additional, Edwards, P. G., additional, Ekers, R., additional, Feain, I., additional, Ferris, R. H., additional, Forsyth, R., additional, Gough, R., additional, Grancea, A., additional, Gupta, N., additional, Guzman, J. C., additional, Hampson, G., additional, Harvey-Smith, L., additional, Haskins, C., additional, Hay, S., additional, Hayman, D. B., additional, Heywood, I., additional, Hotan, A. W., additional, Hoyle, S., additional, Humphreys, B., additional, Indermuehle, B. T., additional, Jacka, C., additional, Jackson, C., additional, Jackson, S., additional, Jeganathan, K., additional, Johnston, S., additional, Joseph, J., additional, Kendall, R., additional, Kesteven, M., additional, Kiraly, D., additional, Koribalski, B. S., additional, Leach, M., additional, Lenc, E., additional, Lensson, E., additional, Mackay, S., additional, Macleod, A., additional, Marquarding, M., additional, Marvil, J., additional, McClure-Griffiths, N., additional, McConnell, D., additional, Mirtschin, P., additional, Norris, R. P., additional, Neuhold, S., additional, Ng, A., additional, O'Sullivan, J., additional, Pathikulangara, J., additional, Pearce, S., additional, Phillips, C., additional, Popping, A., additional, Qiao, R. Y., additional, Reynolds, J. E., additional, Roberts, P., additional, Sault, R. J., additional, Schinckel, A., additional, Serra, P., additional, Shaw, R., additional, Shields, M., additional, Shimwell, T., additional, Storey, M., additional, Sweetnam, T., additional, Troup, E., additional, Turner, B., additional, Tuthill, J., additional, Tzioumis, A., additional, Voronkov, M. A., additional, Westmeier, T., additional, and Wilson, C. D., additional

Published
2015
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13. ASKAP H i imaging of the galaxy group IC 1459

Author

Serra, P., primary, Koribalski, B., additional, Kilborn, V., additional, Allison, J. R., additional, Amy, S. W., additional, Ball, L., additional, Bannister, K., additional, Bell, M. E., additional, Bock, D. C.-J., additional, Bolton, R., additional, Bowen, M., additional, Boyle, B., additional, Broadhurst, S., additional, Brodrick, D., additional, Brothers, M., additional, Bunton, J. D., additional, Chapman, J., additional, Cheng, W., additional, Chippendale, A. P., additional, Chung, Y., additional, Cooray, F., additional, Cornwell, T., additional, DeBoer, D., additional, Diamond, P., additional, Forsyth, R., additional, Gough, R., additional, Gupta, N., additional, Hampson, G. A., additional, Harvey-Smith, L., additional, Hay, S., additional, Hayman, D. B., additional, Heywood, I., additional, Hotan, A. W., additional, Hoyle, S., additional, Humphreys, B., additional, Indermuehle, B., additional, Jacka, C., additional, Jackson, C. A., additional, Jackson, S., additional, Jeganathan, K., additional, Johnston, S., additional, Joseph, J., additional, Kamphuis, P., additional, Leach, M., additional, Lenc, E., additional, Lensson, E., additional, Mackay, S., additional, Marquarding, M., additional, Marvil, J., additional, McClure-Griffiths, N., additional, McConnell, D., additional, Meyer, M., additional, Mirtschin, P., additional, Neuhold, S., additional, Ng, A., additional, Norris, R. P., additional, O'Sullivan, J., additional, Pathikulangara, J., additional, Pearce, S., additional, Phillips, C., additional, Popping, A., additional, Qiao, R. Y., additional, Reynolds, J. E., additional, Roberts, P., additional, Sault, R. J., additional, Schinckel, A. E. T., additional, Shaw, R., additional, Shimwell, T. W., additional, Staveley-Smith, L., additional, Storey, M., additional, Sweetnam, A. W., additional, Troup, E., additional, Tzioumis, A., additional, Voronkov, M. A., additional, Westmeier, T., additional, Whiting, M., additional, Wilson, C., additional, Wong, O. I., additional, and Wu, X., additional

Published
2015
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14. The Australian Square Kilometre Array Pathfinder: System Architecture and Specifications of the Boolardy Engineering Test Array

Author

Hotan, A. W., primary, Bunton, J. D., additional, Harvey-Smith, L., additional, Humphreys, B., additional, Jeffs, B. D., additional, Shimwell, T., additional, Tuthill, J., additional, Voronkov, M., additional, Allen, G., additional, Amy, S., additional, Ardern, K., additional, Axtens, P., additional, Ball, L., additional, Bannister, K., additional, Barker, S., additional, Bateman, T., additional, Beresford, R., additional, Bock, D., additional, Bolton, R., additional, Bowen, M., additional, Boyle, B., additional, Braun, R., additional, Broadhurst, S., additional, Brodrick, D., additional, Brooks, K., additional, Brothers, M., additional, Brown, A., additional, Cantrall, C., additional, Carrad, G., additional, Chapman, J., additional, Cheng, W., additional, Chippendale, A., additional, Chung, Y., additional, Cooray, F., additional, Cornwell, T., additional, Davis, E., additional, de Souza, L., additional, DeBoer, D., additional, Diamond, P., additional, Edwards, P., additional, Ekers, R., additional, Feain, I., additional, Ferris, D., additional, Forsyth, R., additional, Gough, R., additional, Grancea, A., additional, Gupta, N., additional, Guzman, J. C., additional, Hampson, G., additional, Haskins, C., additional, Hay, S., additional, Hayman, D., additional, Hoyle, S., additional, Jacka, C., additional, Jackson, C., additional, Jackson, S., additional, Jeganathan, K., additional, Johnston, S., additional, Joseph, J., additional, Kendall, R., additional, Kesteven, M., additional, Kiraly, D., additional, Koribalski, B., additional, Leach, M., additional, Lenc, E., additional, Lensson, E., additional, Li, L., additional, Mackay, S., additional, Macleod, A., additional, Maher, T., additional, Marquarding, M., additional, McClure-Griffiths, N., additional, McConnell, D., additional, Mickle, S., additional, Mirtschin, P., additional, Norris, R., additional, Neuhold, S., additional, Ng, A., additional, O’Sullivan, J., additional, Pathikulangara, J., additional, Pearce, S., additional, Phillips, C., additional, Qiao, R. Y., additional, Reynolds, J. E., additional, Rispler, A., additional, Roberts, P., additional, Roxby, D., additional, Schinckel, A., additional, Shaw, R., additional, Shields, M., additional, Storey, M., additional, Sweetnam, T., additional, Troup, E., additional, Turner, B., additional, Tzioumis, A., additional, Westmeier, T., additional, Whiting, M., additional, Wilson, C., additional, Wilson, T., additional, Wormnes, K., additional, and Wu, X., additional

Published
2014
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15. [Associations between maternal exposure to chemical fertilizers during pregnancy and the risk of offspring's low birth weights].

Author

Wang N, Wu JL, Zhang Y, Lin SQ, Qiao RY, Fan RJ, and Pei LJ

Subjects
Adult, Case-Control Studies, Female, Humans, Infant, Infant, Newborn, Pregnancy, Premature Birth epidemiology, Random Allocation, Risk Factors, Environmental Exposure adverse effects, Fertilizers adverse effects, Infant, Low Birth Weight, Maternal Exposure, Premature Birth chemically induced
Abstract

Objective: To explore the association between the consumption of chemical fertilizers and the risk of low birth weight (LBW), to provide references for prevention programs on LBW and to improve the birth outcomes. Methods: Stratified multivariate logistic regression method was used in this study involving 153 preterm LBW infants, 179 term LBW infants and 204 normal control infants that were randomly selected from the birth monitoring data between October 2007 and September 2012 in Pingding county, Shanxi province. Associations between the risk of LBW and maternal exposure to chemical fertilizers during pregnancy were identified. A normal control group was set up to compare results between preterm and term LBW groups. Results: Totally, 18 749 infants were born between 2007 and 2012, with the total incidence rates of LBW as 48.5‰, preterm LBW as 19.4‰, and term LBW as 29.1‰. Concerning the case control study on preterm LBW, after adjustment for confounding factors, the risk of preterm LBW appeared 2.51 (95 %CI : 1.05-5.99) times higher in villages with annual consumption of chemical fertilizer ≥100 tons than those villages that using chemical fertilizer less than 50 tons. No significant statistical associations were found between the amounts of household chemical fertilizer consumption and the risks of preterm LBW. Regarding the case control study on term LBW, after adjustment for confounding factors, in villages with ≥100 tons annual consumption of chemical fertilizers, the risk of term LBW was 4.03 (95 %CI : 1.63-9.92) times of the risk in villages where the annal use of chemical fertilizers was less than 50 tons. There was no significant association between household consumption of chemical fertilizers and the risk of term LBW. Conclusions: Maternal exposure to chemical fertilizers during pregnancy was associated with the risk of LBW. Our findings suggested that the amount of chemical fertilizer consumption in rural areas seemed also associated with the risks of other adverse pregnancy outcomes. Women should avoid the chance of exposure to chemical fertilizers during pregnancy and the consumption of chemical fertilizers should be carefully managed.

Published
2018
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