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10 results on '"Lloyd-Ronning, N. M."'

1. Artificial Viscosity -- Then and Now

Author

Margolin, L. G. and Lloyd-Ronning, N. M.

Subjects
Physics - Computational Physics, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Mathematical Physics
Abstract

In this paper, we recount the history of artificial viscosity, beginning with its origin in previously unpublished and unavailable documents, continuing on to current research and ending with recent work describing its physical basis that suggests new directions for improvement. We focus on the underlying ideas that recognize the finiteness of scale and of measurement.

Published
2022

3. The First Gamma-Ray Bursts in the Universe

Author

Mesler, R. A., Whalen, Daniel J., Smidt, Joseph, Fryer, Chris L., Lloyd-Ronning, N. M., and Pihlström, Y. M.

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

Gamma-ray bursts (GRBs) are the ultimate cosmic lighthouses, capable of illuminating the universe at its earliest epochs. Could such events probe the properties of the first stars at z $\sim$ 20, the end of the cosmic Dark Ages? Previous studies of Population III GRBs only considered explosions in the diffuse relic H II regions of their progenitors, or bursts that are far more more energetic than those observed to date. But the processes that produce GRBs at the highest redshifts likely reset their local environments, creating much more complicated structures than those in which relativistic jets have been modeled so far. These structures can greatly affect the luminosity of the afterglow, and hence the redshift at which it can be detected. We have now simulated Population III GRB afterglows in H II regions, winds, and dense shells ejected by the star during the processes that produce the burst. Our model, which has been used in previous work, has been extended to include contributions from reverse shocks, inverse Compton cooling and the effects of sphericity and beaming in the blast wave, and is valid in a variety of circumjet density profiles. We find that GRBs with E$_{\mathrm{iso},\gamma} =$ 10$^{ 51}$ - 10$^{53}$ erg will be visible at z $\gtrsim$ 20 to the next generation of near infrared and radio observatories. In many cases, the environment of the burst, and hence progenitor type, can be inferred from the afterglow light curve. Although some Population III GRBs are visible to Swift and the Very Large Array now, the optimal strategy for their detection will be future missions like EXIST and JANUS, which have large survey areas and onboard X-ray and infrared telescopes that can track their near infrared flux from the moment of the burst, thereby identifying its redshift., Comment: 17 pages, 9 figures, submitted to the Astrophysical Journal, revised in response to comments by the referee

Published
2014
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5. TheSwiftGamma‐Ray Burst Mission

Author

Gehrels, N., Chincarini, G., Giommi, P., Mason, K. O., Nousek, J. A., Wells, A. A., White, N. E., Barthelmy, S. D., Burrows, D. N., Cominsky, L. R., Marshall, F. E., Meszaros, P., Roming, P. W. A., Angelini, L., Barbier, L. M., Belloni, T., Campana, S., Caraveo, P. A., Chester, M. M., Citterio, O., Cline, T. L., Cropper, M. S., Cummings, J. R., Dean, A. J., Feigelson, E. D., Fenimore, E. E., Frail, D. A., Fruchter, A. S., Garmire, G. P., Gendreau, K., Ghisellini, G., Greiner, J., Hill, J. E., Hunsberger, S. D., Krimm, H. A., Kulkarni, S. R., Kumar, P., Lebrun, F., Lloyd-Ronning, N. M., Markwardt, C. B., Mattson, B. J., Mushotzky, R. F., Norris, J. P., Osborne, J., Paczynski, B., Palmer, D. M., Park, H.-S., Parsons, A. M., Paul, J., Rees, M. J., Reynolds, C. S., Rhoads, J. E., Sasseen, T. P., Schaefer, B. E., Short, A. T., Smale, A. P., Smith, I. A., Stella, L., Tagliaferri, G., Takahashi, Tadayuki, Tashiro, Makoto, Gehrels, N, Chincarini, G, Giommi, P, Mason, K, Nousek, J, Wells, A, White, N, Barthelmy, S, Burrows, D, Cominsky, L, Hurley, K, Marshall, F, Meszaros, P, Roming, P, Angelini, L, Barbier, L, Belloni, T, Boyd, P, Campana, S, Caraveo, P, Chester, M, Citterio, O, Cline, T, Cropper, M, Cummings, J, Dean, A, Feigelson, E, Fenimore, E, Frail, D, Fruchter, A, Garmire, G, Gendreau, K, Ghisellini, G, Greiner, J, Hill, J, Hunsberger, S, Krimm, H, Kulkarni, S, Kumar, P, Lebrun, F, Lloyd Ronning, N, Markwardt, C, Mattson, B, Mushotzky, R, Norris, J, Paczynski, B, Palmer, D, Park, H, Parsons, A, Paul, J, Rees, M, Reynolds, C, Rhoads, J, Sasseen, T, Schaefer, B, Short, A, Smale, A, Smith, I, Stella, L, Still, M, Tagliaferri, G, Takahashi, T, Tashiro, M, Townsley, L, Tueller, J, Turner, M, Vietri, M, Voges, W, Ward, M, Willingale, R, Zerbi, F, and Zhang, W

Subjects
Physics, Swift Gamma-Ray Burst Mission, Astrophysics::High Energy Astrophysical Phenomena, GRB 050509B, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysics, X-ray telescope, Gamma-ray astronomy, Astrophysics, law.invention, Telescope, FIS/05 - ASTRONOMIA E ASTROFISICA, Space and Planetary Science, law, Observatory, GRBs, Swift, GRB 090423, Gamma-ray burst
Abstract

著者人数: 71名, Accepted: 2004-04-14, 資料番号: SA1003385000

Published
2004
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6. The Swift Gamma-Ray Burst Mission

Author

Gehrels, N., Chincarini, G., Giommi, P., Mason, K. O., Nousek, J. A., Wells, A. A., White, N. E., Barthelmy, S. D., Burrows, D. N., Cominsky, L. R., Marshall, F. E., Meszaros, P., Roming, P. W. A., Angelini, L., Barbier, L. M., Belloni, T., Campana, S., Caraveo, P. A., Chester, M. M., Citterio, O., Cline, T. L., Cropper, M. S., Cummings, J. R., Dean, A. J., Feigelson, E. D., Fenimore, E. E., Frail, D. A., Fruchter, A. S., Garmire, G. P., Gendreau, K., Ghisellini, G., Greiner, J., Hill, J. E., Hunsberger, S. D., Krimm, H. A., Kulkarni, S. R., Kumar, P., Lebrun, F., Lloyd-Ronning, N. M., Markwardt, C. B., Mattson, B. J., Mushotzky, R. F., Norris, J. P., Osborne, J., Paczynski, B., Palmer, D. M., Park, H.-S., Parsons, A. M., Paul, J., Rees, M. J., Reynolds, C. S., Rhoads, J. E., Sasseen, T. P., Schaefer, B. E., Short, A. T., Smale, A. P., Smith, I. A., Stella, L., Tagliaferri, G., 高橋, 忠幸, 田代, 信, Takahashi, Tadayuki, Tashiro, Makoto, Gehrels, N., Chincarini, G., Giommi, P., Mason, K. O., Nousek, J. A., Wells, A. A., White, N. E., Barthelmy, S. D., Burrows, D. N., Cominsky, L. R., Marshall, F. E., Meszaros, P., Roming, P. W. A., Angelini, L., Barbier, L. M., Belloni, T., Campana, S., Caraveo, P. A., Chester, M. M., Citterio, O., Cline, T. L., Cropper, M. S., Cummings, J. R., Dean, A. J., Feigelson, E. D., Fenimore, E. E., Frail, D. A., Fruchter, A. S., Garmire, G. P., Gendreau, K., Ghisellini, G., Greiner, J., Hill, J. E., Hunsberger, S. D., Krimm, H. A., Kulkarni, S. R., Kumar, P., Lebrun, F., Lloyd-Ronning, N. M., Markwardt, C. B., Mattson, B. J., Mushotzky, R. F., Norris, J. P., Osborne, J., Paczynski, B., Palmer, D. M., Park, H.-S., Parsons, A. M., Paul, J., Rees, M. J., Reynolds, C. S., Rhoads, J. E., Sasseen, T. P., Schaefer, B. E., Short, A. T., Smale, A. P., Smith, I. A., Stella, L., Tagliaferri, G., 高橋, 忠幸, 田代, 信, Takahashi, Tadayuki, and Tashiro, Makoto

Abstract

著者人数: 71名, Accepted: 2004-04-14

Published
2015

7. Erratum: 'The Swift Gamma-Ray Burst Mission' (ApJ, 611, 1005 [2004])

Author

Gehrels, N., Chincarini, G., Giommi, P., Mason, K. O., Nousek, J. A., Wells, A. A., White, N. E., Barthelmy, S. D., Burrows, D. N., Cominsky, L. R., Marshall, F. E., Meszaros, P., Roming, P. W. A., Angelini, L., Barbier, L. M., Belloni, T., Boyd, P. T., Campana, S., Caraveo, P. A., Chester, M. M., Citterio, O., Cline, T. L., Cropper, M. S., Cummings, J. R., Dean, A. J., Feigelson, E. D., Fenimore, E. E., Frail, D. A., Fruchter, A. S., Garmire, G. P., Gendreau, K., Ghisellini, G., Greiner, J., Hill, J. E., Hunsberger, S. D., Krimm, H. A., Kulkarni, S. R., Kumar, P., Lebrun, F., Lloyd-Ronning, N. M., Markwardt, C. B., Mattson, B. J., Mushotzky, R. F., Norris, J. P., Paczynski, B., Palmer, D. M., Park, H.-S., Parsons, A. M., Paul, J., Rees, M. J., Reynolds, C. S., Rhoads, J. E., Sasseen, T. P., Schaefer, B. E., Short, A. T., Smale, A. P., Smith, I. A., Stella, L., Still, M., Tagliaferri, G., 高橋, 忠幸, 田代, 信, Takahashi, Tadayuki, Tashiro, Makoto, Gehrels, N., Chincarini, G., Giommi, P., Mason, K. O., Nousek, J. A., Wells, A. A., White, N. E., Barthelmy, S. D., Burrows, D. N., Cominsky, L. R., Marshall, F. E., Meszaros, P., Roming, P. W. A., Angelini, L., Barbier, L. M., Belloni, T., Boyd, P. T., Campana, S., Caraveo, P. A., Chester, M. M., Citterio, O., Cline, T. L., Cropper, M. S., Cummings, J. R., Dean, A. J., Feigelson, E. D., Fenimore, E. E., Frail, D. A., Fruchter, A. S., Garmire, G. P., Gendreau, K., Ghisellini, G., Greiner, J., Hill, J. E., Hunsberger, S. D., Krimm, H. A., Kulkarni, S. R., Kumar, P., Lebrun, F., Lloyd-Ronning, N. M., Markwardt, C. B., Mattson, B. J., Mushotzky, R. F., Norris, J. P., Paczynski, B., Palmer, D. M., Park, H.-S., Parsons, A. M., Paul, J., Rees, M. J., Reynolds, C. S., Rhoads, J. E., Sasseen, T. P., Schaefer, B. E., Short, A. T., Smale, A. P., Smith, I. A., Stella, L., Still, M., Tagliaferri, G., 高橋, 忠幸, 田代, 信, Takahashi, Tadayuki, and Tashiro, Makoto

Abstract

著者人数: 72名

Published
2015

8. Erratum: 'The Swift Gamma-Ray Burst Mission' (ApJ, 611, 1005 [2004])

Author

Gehrels, N., Chincarini, G., Giommi, P., Mason, K. O., Nousek, J. A., Wells, A. A., White, N. E., Barthelmy, S. D., Burrows, D. N., Cominsky, L. R., Marshall, F. E., Meszaros, P., Roming, P. W. A., Angelini, L., Barbier, L. M., Belloni, T., Boyd, P. T., Campana, S., Caraveo, P. A., Chester, M. M., Citterio, O., Cline, T. L., Cropper, M. S., Cummings, J. R., Dean, A. J., Feigelson, E. D., Fenimore, E. E., Frail, D. A., Fruchter, A. S., Garmire, G. P., Gendreau, K., Ghisellini, G., Greiner, J., Hill, J. E., Hunsberger, S. D., Krimm, H. A., Kulkarni, S. R., Kumar, P., Lebrun, F., Lloyd-Ronning, N. M., Markwardt, C. B., Mattson, B. J., Mushotzky, R. F., Norris, J. P., Paczynski, B., Palmer, D. M., Park, H.-S., Parsons, A. M., Paul, J., Rees, M. J., Reynolds, C. S., Rhoads, J. E., Sasseen, T. P., Schaefer, B. E., Short, A. T., Smale, A. P., Smith, I. A., Stella, L., Still, M., Tagliaferri, G., Takahashi, Tadayuki, and Tashiro, Makoto

Subjects
Physics, Swift, Thesaurus (information retrieval), Space and Planetary Science, Astronomy, Astronomy and Astrophysics, Gamma-ray burst, computer, computer.programming_language
Abstract

著者人数: 72名, 資料番号: SA1003390000

Published
2005

10. Erratum: “TheSwiftGamma‐Ray Burst Mission” (ApJ, 611, 1005 [2004])

Author

Gehrels, N., primary, Chincarini, G, additional, Giommi, P., additional, Mason, K. O., additional, Nousek, J. A., additional, Wells, A. A., additional, White, N. E., additional, Barthelmy, S. D., additional, Burrows, D. N., additional, Cominsky, L. R., additional, Hurley, K. C., additional, Marshall, F. E., additional, Meszaros, P., additional, Roming, P. W. A., additional, Angelini, L., additional, Barbier, L. M., additional, Belloni, T., additional, Boyd, P. T., additional, Campana, S., additional, Caraveo, P. A., additional, Chester, M. M., additional, Citterio, O., additional, Cline, T. L., additional, Cropper, M. S., additional, Cummings, J. R., additional, Dean, A. J., additional, Feigelson, E. D., additional, Fenimore, E. E., additional, Frail, D. A., additional, Fruchter, A. S., additional, Garmire, G. P., additional, Gendreau, K., additional, Ghisellini, G., additional, Greiner, J., additional, Hill, J. E., additional, Hunsberger, S. D., additional, Krimm, H. A., additional, Kulkarni, S. R., additional, Kumar, P., additional, Lebrun, F., additional, Lloyd‐Ronning, N. M., additional, Markwardt, C. B., additional, Mattson, B. J., additional, Mushotzky, R. F., additional, Norris, J. P., additional, Paczynski, B., additional, Palmer, D. M., additional, Park, H.‐S., additional, Parsons, A. M., additional, Paul, J., additional, Rees, M. J., additional, Reynolds, C. S., additional, Rhoads, J. E., additional, Sasseen, T. P., additional, Schaefer, B. E., additional, Short, A. T., additional, Smale, A. P., additional, Smith, I. A., additional, Stella, L., additional, Still, M., additional, Tagliaferri, G., additional, Takahashi, T., additional, Tashiro, M., additional, Townsley, L. K., additional, Tueller, J., additional, Turner, M. J. L., additional, Vietri, M., additional, Voges, W., additional, Ward, M. J., additional, Willingale, R., additional, Zerbi, F. M., additional, and Zhang, W. W., additional

Published
2005
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