The type Ia supernova SNLS-03D3bb from a super-Chandrasekhar-mass white dwarf star
| العنوان: | The type Ia supernova SNLS-03D3bb from a super-Chandrasekhar-mass white dwarf star |
|---|---|
| المؤلفون: | D. Andrew Howell, K. Perrett, Alex Conley, James D. Neill, Richard S. Ellis, Stéphane Basa, Julien Guy, Peter Nugent, Damien Le Borgne, David D. Balam, Christopher J. Pritchet, D. Fouchez, Mark Sullivan, Raymond G. Carlberg, Eric Hsiao, Reynald Pain, Isobel Hook |
| المساهمون: | Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES) |
| المصدر: | Nature Nature, 2006, 443, pp.308-311. ⟨10.1038/nature05103⟩ Nature, Nature Publishing Group, 2006, 443, pp.308-311. ⟨10.1038/nature05103⟩ Howell, D.Andrew; Sullivan, Mark; Nugent, Peter E.; Ellis, Richard S.; Conley, Alexander J.; Le Borgne, Damien; et al.(2008). The type Ia supernova SNLS-03D3bb from a super-Chandrasekhar-mass white dwarf star. Lawrence Berkeley National Laboratory. Lawrence Berkeley National Laboratory: Lawrence Berkeley National Laboratory. Retrieved from: http://www.escholarship.org/uc/item/7sv4955tTest |
| بيانات النشر: | Springer Science and Business Media LLC, 2006. |
| سنة النشر: | 2006 |
| مصطلحات موضوعية: | Stellar mass, Astrophysics::High Energy Astrophysical Phenomena, Population, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 7. Clean energy, 01 natural sciences, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, education, 010303 astronomy & astrophysics, Chandrasekhar limit, Astrophysics::Galaxy Astrophysics, Physics, education.field_of_study, Solar mass, Multidisciplinary, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Carbon detonation, Astrophysics (astro-ph), Cosmic distance ladder, Astronomy, White dwarf, Supernova, 13. Climate action, supernova type Ia thermonuclear super-chandrasekhar, Astrophysics::Earth and Planetary Astrophysics |
| الوصف: | The acceleration of the expansion of the universe, and the need for Dark Energy, were inferred from the observations of Type Ia supernovae (SNe Ia). There is consensus that SNe Ia are thermonuclear explosions that destroy carbon-oxygen white dwarf stars that accrete matter from a companion star, although the nature of this companion remains uncertain. SNe Ia are thought to be reliable distance indicators because they have a standard amount of fuel and a uniform trigger -- they are predicted to explode when the mass of the white dwarf nears the Chandrasekhar mass -- 1.4 solar masses. Here we show that the high redshift supernova SNLS-03D3bb has an exceptionally high luminosity and low kinetic energy that both imply a super-Chandrasekhar mass progenitor. Super-Chandrasekhar mass SNe Ia should preferentially occur in a young stellar population, so this may provide an explanation for the observed trend that overluminous SNe Ia only occur in young environments. Since this supernova does not obey the relations that allow them to be calibrated as standard candles, and since no counterparts have been found at low redshift, future cosmology studies will have to consider contamination from such events. Comment: 9 pages, 4 figures. To appear in Nature Sept. 21. Accompanying News & Views in same issue. Supplementary information available at www.nature.com/nature |
| وصف الملف: | application/pdf |
| تدمد: | 1476-4687 0028-0836 1476-4679 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::295045953ffd1cbe6a819b4d7887bf5fTest https://doi.org/10.1038/nature05103Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....295045953ffd1cbe6a819b4d7887bf5f |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14764687 00280836 14764679 |
|---|