The Unusual Super-luminous Supernovae SN 2011kl and ASASSN-15lh
Fil: Bersten, Melina C. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina.
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IOP Publishing
2016
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| Acceso en línea: | http://iopscience.iop.org/article/10.3847/2041-8205/817/1/L8/meta http://hdl.handle.net/11336/35490 https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2833 http://dx.doi.org/10.3847/2041-8205/817/1/L8 |
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I65-R171-20.500.12049-28332023-09-13T15:31:56Z application/pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/4.0/ 2016-01-19 Fil: Bersten, Melina C. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Fil: Bersten, Melina C. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Fil: Bersten, Melina C. Instituto de Astrofísica de La Plata; Argentina Fil: Benvenuto, Omar G. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Fil: Benvenuto, Omar G. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina Fil: Benvenuto, Omar G. Instituto de Astrofísica de La Plata; Argentina Fil: Orellana, Mariana D. Universidad Nacional de Río Negro; Argentina. Fil: Orellana, Mariana D. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Nomoto, Ken’ichi. University of Tokyo; Japón The Unusual Super-luminous Supernovae SN 2011kl and ASASSN-15lh Bersten, Melina C. Benvenuto, Omar G. Orellana, Mariana Dominga Nomoto, Ken’ichi Astronomía Gamma Ray Bursts Supernovae SN 2011kl ASASSN-15lh Astronomía true Two recently discovered very luminous supernovae (SNe) present stimulating cases to explore the extents of the available theoretical models. SN 2011kl represents the first detection of a supernova explosion associated with an ultra-long duration gamma-ray burst. ASASSN-15lh was even claimed as the most luminous SN ever discovered, challenging the scenarios so far proposed for stellar explosions. Here we use our radiation hydrodynamics code in order to simulate magnetar-powered SNe. To avoid explicitly assuming neutron star properties, we adopt the magnetar luminosity and spin-down timescale as free parameters of the model. We find that the light curve (LC) of SN 2011kl is consistent with a magnetar power source, as previously proposed, but we note that some amount of 56Ni (> 0.08 Msun ) is necessary to explain the low contrast between the LC peak and tail. For the case of ASASSN-15lh, we find physically plausible magnetar parameters that reproduce the overall shape of the LC provided the progenitor mass is relatively large (an ejecta mass of ~ 6 Msun ). The ejecta hydrodynamics of this event is dominated by the magnetar input, while the effect is more moderate for SN 2011kl. We conclude that a magnetar model may be used for the interpretation of these events and that the hydrodynamical modeling is necessary to derive the properties of powerful magnetars and their progenitors. Bersten, Melina C., Benvenuto, Omar G., Orellana, Mariana D. & Nomoto, Ken’ichi. (2016). The Unusual Super-luminous Supernovae SN 2011kl and ASASSN-15lh. IOP Publishing; Astrophysical Journal; 817; p. 1-5 0004-637X 1538-4357 http://iopscience.iop.org/article/10.3847/2041-8205/817/1/L8/meta http://hdl.handle.net/11336/35490 https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2833 http://dx.doi.org/10.3847/2041-8205/817/1/L8 eng 817 Astrophysical Journal IOP Publishing |
| institution |
Universidad Nacional de Río Negro |
| institution_str |
I-65 |
| repository_str |
R-171 |
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Repositorio Institucional Digital de la Universidad Nacional de Río Negro (UNRN) |
| language |
Inglés |
| orig_language_str_mv |
eng |
| topic |
Astronomía Gamma Ray Bursts Supernovae SN 2011kl ASASSN-15lh Astronomía |
| spellingShingle |
Astronomía Gamma Ray Bursts Supernovae SN 2011kl ASASSN-15lh Astronomía Bersten, Melina C. Benvenuto, Omar G. Orellana, Mariana Dominga Nomoto, Ken’ichi The Unusual Super-luminous Supernovae SN 2011kl and ASASSN-15lh |
| topic_facet |
Astronomía Gamma Ray Bursts Supernovae SN 2011kl ASASSN-15lh Astronomía |
| description |
Fil: Bersten, Melina C. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. |
| author |
Bersten, Melina C. Benvenuto, Omar G. Orellana, Mariana Dominga Nomoto, Ken’ichi |
| author_facet |
Bersten, Melina C. Benvenuto, Omar G. Orellana, Mariana Dominga Nomoto, Ken’ichi |
| author_sort |
Bersten, Melina C. |
| title |
The Unusual Super-luminous Supernovae SN 2011kl and ASASSN-15lh |
| title_short |
The Unusual Super-luminous Supernovae SN 2011kl and ASASSN-15lh |
| title_full |
The Unusual Super-luminous Supernovae SN 2011kl and ASASSN-15lh |
| title_fullStr |
The Unusual Super-luminous Supernovae SN 2011kl and ASASSN-15lh |
| title_full_unstemmed |
The Unusual Super-luminous Supernovae SN 2011kl and ASASSN-15lh |
| title_sort |
unusual super-luminous supernovae sn 2011kl and asassn-15lh |
| publisher |
IOP Publishing |
| publishDate |
2016 |
| url |
http://iopscience.iop.org/article/10.3847/2041-8205/817/1/L8/meta http://hdl.handle.net/11336/35490 https://rid.unrn.edu.ar/jspui/handle/20.500.12049/2833 http://dx.doi.org/10.3847/2041-8205/817/1/L8 |
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