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Supernovae. 44Ti gamma-ray emission lines from SN1987A reveal an asymmetric explosion.
Boggs, S E; Harrison, F A; Miyasaka, H; Grefenstette, B W; Zoglauer, A; Fryer, C L; Reynolds, S P; Alexander, D M; An, H; Barret, D; Christensen, F E; Craig, W W; Forster, K; Giommi, P; Hailey, C J; Hornstrup, A; Kitaguchi, T; Koglin, J E; Madsen, K K; Mao, P H; Mori, K; Perri, M; Pivovaroff, M J; Puccetti, S; Rana, V; Stern, D; Westergaard, N J; Zhang, W W.
Afiliación
  • Boggs SE; Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA. boggs@berkeley.edu.
  • Harrison FA; Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA.
  • Miyasaka H; Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA.
  • Grefenstette BW; Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA.
  • Zoglauer A; Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA.
  • Fryer CL; CCS-2, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Reynolds SP; Physics Department, NC State University, Raleigh, NC 27695, USA.
  • Alexander DM; Department of Physics, Durham University, Durham DH1 3LE, UK.
  • An H; Department of Physics, McGill University, Rutherford Physics Building, Montreal, Quebec H3A 2T8, Canada.
  • Barret D; Université de Toulouse, UPS-OMP, IRAP, Toulouse, France. CNRS, Institut de Recherche en Astrophysique et Planétologie, 9 Av. colonel Roche, BP 44346, F-31028 Toulouse Cedex 4, France.
  • Christensen FE; DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 327, DK-2800 Lyngby, Denmark.
  • Craig WW; Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA. Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
  • Forster K; Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA.
  • Giommi P; Agenzia Spaziale Italiana (ASI) Science Data Center, Via del Politecnico snc I-00133, Roma, Italy.
  • Hailey CJ; Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027, USA.
  • Hornstrup A; DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 327, DK-2800 Lyngby, Denmark.
  • Kitaguchi T; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.
  • Koglin JE; Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
  • Madsen KK; Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA.
  • Mao PH; Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA.
  • Mori K; Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027, USA.
  • Perri M; Agenzia Spaziale Italiana (ASI) Science Data Center, Via del Politecnico snc I-00133, Roma, Italy. INAF - Osservatorio Astronomico di Roma, via di Frascati 33, I-00040 Monteporzio, Italy.
  • Pivovaroff MJ; Lawrence Livermore National Laboratory, Livermore, CA 94550, USA.
  • Puccetti S; Agenzia Spaziale Italiana (ASI) Science Data Center, Via del Politecnico snc I-00133, Roma, Italy. INAF - Osservatorio Astronomico di Roma, via di Frascati 33, I-00040 Monteporzio, Italy.
  • Rana V; Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA.
  • Stern D; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.
  • Westergaard NJ; DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 327, DK-2800 Lyngby, Denmark.
  • Zhang WW; NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.
Science ; 348(6235): 670-1, 2015 May 08.
Article en En | MEDLINE | ID: mdl-25954004
In core-collapse supernovae, titanium-44 ((44)Ti) is produced in the innermost ejecta, in the layer of material directly on top of the newly formed compact object. As such, it provides a direct probe of the supernova engine. Observations of supernova 1987A (SN1987A) have resolved the 67.87- and 78.32-kilo-electron volt emission lines from decay of (44)Ti produced in the supernova explosion. These lines are narrow and redshifted with a Doppler velocity of ~700 kilometers per second, direct evidence of large-scale asymmetry in the explosion.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Science Año: 2015 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Science Año: 2015 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos