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A strong ultraviolet pulse from a newborn type Ia supernova.
Cao, Yi; Kulkarni, S R; Howell, D Andrew; Gal-Yam, Avishay; Kasliwal, Mansi M; Valenti, Stefano; Johansson, J; Amanullah, R; Goobar, A; Sollerman, J; Taddia, F; Horesh, Assaf; Sagiv, Ilan; Cenko, S Bradley; Nugent, Peter E; Arcavi, Iair; Surace, Jason; Wozniak, P R; Moody, Daniela I; Rebbapragada, Umaa D; Bue, Brian D; Gehrels, Neil.
Afiliación
  • Cao Y; Astronomy Department, California Institute of Technology, Pasadena, California 91125, USA.
  • Kulkarni SR; 1] Astronomy Department, California Institute of Technology, Pasadena, California 91125, USA [2] Caltech Optical Observatories, California Institute of Technology, Pasadena, California 91125, USA.
  • Howell DA; 1] Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Goleta, California 93117, USA [2] Department of Physics, University of California, Santa Barbara, California 93106, USA.
  • Gal-Yam A; Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100, Israel.
  • Kasliwal MM; Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, California 91101, USA.
  • Valenti S; 1] Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Goleta, California 93117, USA [2] Department of Physics, University of California, Santa Barbara, California 93106, USA.
  • Johansson J; The Oskar Klein Centre, Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden.
  • Amanullah R; The Oskar Klein Centre, Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden.
  • Goobar A; The Oskar Klein Centre, Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden.
  • Sollerman J; The Oskar Klein Centre, Department of Astronomy, Stockholm University, SE-106 91 Stockholm, Sweden.
  • Taddia F; The Oskar Klein Centre, Department of Astronomy, Stockholm University, SE-106 91 Stockholm, Sweden.
  • Horesh A; Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100, Israel.
  • Sagiv I; Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100, Israel.
  • Cenko SB; Astrophysics Science Division, NASA Goddard Space Flight Center, Mail Code 661, Greenbelt, Maryland 20771, USA.
  • Nugent PE; 1] Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA [2] Astronomy Department, University of California, Berkeley, 501 Campbell Hall, Berkeley, California 94720, USA.
  • Arcavi I; 1] Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Goleta, California 93117, USA [2] Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106, USA.
  • Surace J; Spitzer Science Center, California Institute of Technology, Pasadena, California 91125, USA.
  • Wozniak PR; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Moody DI; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
  • Rebbapragada UD; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA.
  • Bue BD; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA.
  • Gehrels N; Astrophysics Science Division, NASA Goddard Space Flight Center, Mail Code 661, Greenbelt, Maryland 20771, USA.
Nature ; 521(7552): 328-31, 2015 May 21.
Article en En | MEDLINE | ID: mdl-25993962
ABSTRACT
Type Ia supernovae are destructive explosions of carbon-oxygen white dwarfs. Although they are used empirically to measure cosmological distances, the nature of their progenitors remains mysterious. One of the leading progenitor models, called the single degenerate channel, hypothesizes that a white dwarf accretes matter from a companion star and the resulting increase in its central pressure and temperature ignites thermonuclear explosion. Here we report observations with the Swift Space Telescope of strong but declining ultraviolet emission from a type Ia supernova within four days of its explosion. This emission is consistent with theoretical expectations of collision between material ejected by the supernova and a companion star, and therefore provides evidence that some type Ia supernovae arise from the single degenerate channel.
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Texto completo: 1 Bases de datos: MEDLINE Idioma: En Revista: Nature Año: 2015 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Bases de datos: MEDLINE Idioma: En Revista: Nature Año: 2015 Tipo del documento: Article País de afiliación: Estados Unidos