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Your search keyword '"Wong, K. T."' showing total 10 results
Start Over Author "Wong, K. T." Publisher edp sciences
10 results on '"Wong, K. T."'

1. ATOMIUM: Probing the inner wind of evolved O-rich stars with new, highly excited H2O and OH lines

Author

Baudry, A., primary, Wong, K. T., additional, Etoka, S., additional, Richards, A. M. S., additional, Müller, H. S. P., additional, Herpin, F., additional, Danilovich, T., additional, Gray, M. D., additional, Wallström, S., additional, Gobrecht, D., additional, Khouri, T., additional, Decin, L., additional, Gottlieb, C. A., additional, Menten, K. M., additional, Homan, W., additional, Millar, T. J., additional, Montargès, M., additional, Pimpanuwat, B., additional, Plane, J. M. C., additional, and Kervella, P., additional

Published
2023
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2. The VLT/SPHERE view of the ATOMIUM cool evolved star sample

Author

Montargès, M., primary, Cannon, E., additional, de Koter, A., additional, Khouri, T., additional, Lagadec, E., additional, Kervella, P., additional, Decin, L., additional, McDonald, I., additional, Homan, W., additional, Waters, L. B. F. M., additional, Sahai, R., additional, Gottlieb, C. A., additional, Malfait, J., additional, Maes, S., additional, Pimpanuwat, B., additional, Jeste, M., additional, Danilovich, T., additional, De Ceuster, F., additional, Van de Sande, M., additional, Gobrecht, D., additional, Wallström, S. H. J., additional, Wong, K. T., additional, El Mellah, I., additional, Bolte, J., additional, Herpin, F., additional, Richards, A. M. S., additional, Baudry, A., additional, Etoka, S., additional, Gray, M. D., additional, Millar, T. J., additional, Menten, K. M., additional, Müller, H. S. P., additional, Plane, J. M. C., additional, Yates, J., additional, and Zijlstra, A., additional

Published
2023
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3. ATOMIUM : Probing the inner wind of evolved O-rich stars with new, highly excited H2O and OH lines

Author

Baudry, A., Wong, K. T., Etoka, S., Richards, A. M. S., Mueller, H. S. P., Herpin, F., Danilovich, T., Gray, M. D., Wallstroem, S., Gobrecht, D., Khouri, T., Decin, L., Gottlieb, C. A., Menten, K. M., Homan, W., Millar, T. J., Montarges, M., Pimpanuwat, B., Plane, J. M. C., Kervella, P., Baudry, A., Wong, K. T., Etoka, S., Richards, A. M. S., Mueller, H. S. P., Herpin, F., Danilovich, T., Gray, M. D., Wallstroem, S., Gobrecht, D., Khouri, T., Decin, L., Gottlieb, C. A., Menten, K. M., Homan, W., Millar, T. J., Montarges, M., Pimpanuwat, B., Plane, J. M. C., and Kervella, P.

Abstract

Context: Water (H2O) and the hydroxyl radical (OH) are major constituents of the envelope of O-rich late-type stars. Transitions involving energy levels that are rotationally or vibrationally highly excited (energies & GSIM;4000 K) have been observed in both H2O and OH. These and more recently discovered transitions can now be observed at a high sensitivity and angular resolution in the inner wind close to the stellar photosphere with the Atacama Large Millimeter/submillimeter Array (ALMA). Aims: Our goals are: (1) to identify and map the emission and absorption of H2O in several vibrational states, and of OH in Lambda-doubling transitions with similar excitation energies; and (2) to determine the physical conditions and kinematics in gas layers close to the extended atmosphere in a sample of asymptotic giant branch stars (AGBs) and red supergiants (RSGs). Methods: Spectra and maps of H2O and OH lines observed in a 27 GHz aggregated bandwidth and with an angular resolution of similar to 0."02-1."0 were obtained at two epochs with the main ALMA array. Additional observations with the Atacama Compact Array (ACA) were used to check for time variability of water transitions. Radiative transfer models of H2O were revisited to characterize masing conditions. Up-to-date chemical models were used for comparison with the observed OH/H2O abundance ratio. Results: Ten rotational transitions of H2O with excitation energies similar to 4000-9000 K were observed in vibrational states up to (& upsilon;(1),& upsilon;(2),& upsilon;(3)) = (0,1,1). All but one are new detections in space, and from these we have derived accurate rest frequencies. Hyperfine split Lambda-doubling transitions in & upsilon; = 0, J = 27/2 and 29/2 levels of the (2)& pi;(3/2) state, as well as J = 33/2 and 35/2 of the (2)& pi;(1/2) state of OH with excitation energies of similar to 4780-8900 K were also observed. Four of these transitions are new detections in space. Combining our

Published
2023
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4. ATOMIUM: ALMA tracing the origins of molecules in dust forming oxygen rich M-type stars

Author

Gottlieb, C. A., primary, Decin, L., additional, Richards, A. M. S., additional, De Ceuster, F., additional, Homan, W., additional, Wallström, S. H. J., additional, Danilovich, T., additional, Millar, T. J., additional, Montargès, M., additional, Wong, K. T., additional, McDonald, I., additional, Baudry, A., additional, Bolte, J., additional, Cannon, E., additional, De Beck, E., additional, de Koter, A., additional, El Mellah, I., additional, Etoka, S., additional, Gobrecht, D., additional, Gray, M., additional, Herpin, F., additional, Jeste, M., additional, Kervella, P., additional, Khouri, T., additional, Lagadec, E., additional, Maes, S., additional, Malfait, J., additional, Menten, K. M., additional, Müller, H. S. P., additional, Pimpanuwat, B., additional, Plane, J. M. C., additional, Sahai, R., additional, Van de Sande, M., additional, Waters, L. B. F. M., additional, Yates, J., additional, and Zijlstra, A., additional

Published
2022
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6. ATOMIUM: halide molecules around the S-type AGB star W Aquilae

Author

Danilovich, T., primary, Van de Sande, M., additional, Plane, J. M. C., additional, Millar, T. J., additional, Royer, P., additional, Amor, M. A., additional, Hammami, K., additional, Decock, L., additional, Gottlieb, C. A., additional, Decin, L., additional, Richards, A. M. S., additional, De Beck, E., additional, Baudry, A., additional, Bolte, J., additional, Cannon, E., additional, De Ceuster, F., additional, de Koter, A., additional, Etoka, S., additional, Gobrecht, D., additional, Gray, M., additional, Herpin, F., additional, Homan, W., additional, Jeste, M., additional, Kervella, P., additional, Khouri, T., additional, Lagadec, E., additional, Maes, S., additional, Malfait, J., additional, McDonald, I., additional, Menten, K. M., additional, Montargès, M., additional, Müller, H. S. P., additional, Pimpanuwat, B., additional, Sahai, R., additional, Wallström, S. H. J., additional, Waters, L. B. F. M., additional, Wong, K. T., additional, Yates, J., additional, and Zijlstra, A., additional

Published
2021
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8. An observational study of dust nucleation in Mira (o Ceti)

Author

Kamiński, T., primary, Müller, H. S. P., additional, Schmidt, M. R., additional, Cherchneff, I., additional, Wong, K. T., additional, Brünken, S., additional, Menten, K. M., additional, Winters, J. M., additional, Gottlieb, C. A., additional, and Patel, N. A., additional

Published
2017
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9. An observational study of dust nucleation in Mira (o Ceti)

Author

Kamiński, T., primary, Wong, K. T., additional, Schmidt, M. R., additional, Müller, H. S. P., additional, Gottlieb, C. A., additional, Cherchneff, I., additional, Menten, K. M., additional, Keller, D., additional, Brünken, S., additional, Winters, J. M., additional, and Patel, N. A., additional

Published
2016
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