A surge of light at the birth of a supernova
It is difficult to establish the properties of massive stars that explode as supernovae. The electromagnetic emission during the first minutes to hours after the emergence of the shock from the stellar surface conveys important information about the final evolution and structure of the exploding sta...
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| Autores principales: | , , , , , , , , , , , , , , , , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2018
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/93544 https://www.nature.com/articles/nature25151 |
| Aporte de: |
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I19-R120-10915-93544 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Astronómicas Hydrodynamics Supernovae SN 2016gkg |
| spellingShingle |
Ciencias Astronómicas Hydrodynamics Supernovae SN 2016gkg Bersten, Melina Cecilia Folatelli, Gaston García, Federico Van Dyk, S. D. Benvenuto, Omar Gustavo Orellana, Mariana Dominga Buso, V. Sánchez, J. L. Tanaka, M. Maeda, K. Filippenko, A. V. Zheng, W. Brink, T. G. Cenko, S. B. de Jaeger, T. Kumar, S. Moriya, T. J. Nomoto, K. Perley, D. A. Shivvers, I. Smith, N. A surge of light at the birth of a supernova |
| topic_facet |
Ciencias Astronómicas Hydrodynamics Supernovae SN 2016gkg |
| description |
It is difficult to establish the properties of massive stars that explode as supernovae. The electromagnetic emission during the first minutes to hours after the emergence of the shock from the stellar surface conveys important information about the final evolution and structure of the exploding star. However, the unpredictable nature of supernova events hinders the detection of this brief initial phase. Here we report the serendipitous discovery of a newly born, normal type IIb supernova (SN 2016gkg), which reveals a rapid brightening at optical wavelengths of about 40 magnitudes per day. The very frequent sampling of the observations allowed us to study in detail the outermost structure of the progenitor of the supernova and the physics of the emergence of the shock. We develop hydrodynamical models of the explosion that naturally account for the complete evolution of the supernova over distinct phases regulated by different physical processes. This result suggests that it is appropriate to decouple the treatment of the shock propagation from the unknown mechanism that triggers the explosion. |
| format |
Articulo Articulo |
| author |
Bersten, Melina Cecilia Folatelli, Gaston García, Federico Van Dyk, S. D. Benvenuto, Omar Gustavo Orellana, Mariana Dominga Buso, V. Sánchez, J. L. Tanaka, M. Maeda, K. Filippenko, A. V. Zheng, W. Brink, T. G. Cenko, S. B. de Jaeger, T. Kumar, S. Moriya, T. J. Nomoto, K. Perley, D. A. Shivvers, I. Smith, N. |
| author_facet |
Bersten, Melina Cecilia Folatelli, Gaston García, Federico Van Dyk, S. D. Benvenuto, Omar Gustavo Orellana, Mariana Dominga Buso, V. Sánchez, J. L. Tanaka, M. Maeda, K. Filippenko, A. V. Zheng, W. Brink, T. G. Cenko, S. B. de Jaeger, T. Kumar, S. Moriya, T. J. Nomoto, K. Perley, D. A. Shivvers, I. Smith, N. |
| author_sort |
Bersten, Melina Cecilia |
| title |
A surge of light at the birth of a supernova |
| title_short |
A surge of light at the birth of a supernova |
| title_full |
A surge of light at the birth of a supernova |
| title_fullStr |
A surge of light at the birth of a supernova |
| title_full_unstemmed |
A surge of light at the birth of a supernova |
| title_sort |
surge of light at the birth of a supernova |
| publishDate |
2018 |
| url |
http://sedici.unlp.edu.ar/handle/10915/93544 https://www.nature.com/articles/nature25151 |
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