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Asymmetries in core-collapse supernovae from maps of radioactive 44Ti in Cassiopeia A

Author

Listed:
  • B. W. Grefenstette

    (Cahill Center for Astrophysics, 1216 East California Boulevard, California Institute of Technology)

  • F. A. Harrison

    (Cahill Center for Astrophysics, 1216 East California Boulevard, California Institute of Technology)

  • S. E. Boggs

    (Space Sciences Laboratory, University of California)

  • S. P. Reynolds

    (North Carolina State University)

  • C. L. Fryer

    (CCS-2, Los Alamos National Laboratory)

  • K. K. Madsen

    (Cahill Center for Astrophysics, 1216 East California Boulevard, California Institute of Technology)

  • D. R. Wik

    (NASA Goddard Space Flight Center)

  • A. Zoglauer

    (Space Sciences Laboratory, University of California)

  • C. I. Ellinger

    (University of Texas at Arlington)

  • D. M. Alexander

    (Durham University, Durham DH1 3LE, UK)

  • H. An

    (McGill University, Rutherford Physics Building, Montreal, Quebec H3A 2T8, Canada)

  • D. Barret

    (Université de Toulouse, UPS-OMP, IRAP, 9 Avenue du Colonel Roche, BP 44346, 31028 Toulouse Cedex 4, France
    CNRS, Institut de Recherche en Astrophysique et Planétologie, 9 Avenue colonel Roche, BP 44346, F-31028 Toulouse Cedex 4, France)

  • F. E. Christensen

    (DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 327, DK-2800 Lyngby, Denmark)

  • W. W. Craig

    (Space Sciences Laboratory, University of California
    Lawrence Livermore National Laboratory)

  • K. Forster

    (Cahill Center for Astrophysics, 1216 East California Boulevard, California Institute of Technology)

  • P. Giommi

    (Agenzia Spaziale Italiana (ASI) Science Data Center, Via del Politecnico snc, I-00133 Roma, Italy)

  • C. J. Hailey

    (Columbia Astrophysics Laboratory, Columbia University)

  • A. Hornstrup

    (DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 327, DK-2800 Lyngby, Denmark)

  • V. M. Kaspi

    (McGill University, Rutherford Physics Building, Montreal, Quebec H3A 2T8, Canada)

  • T. Kitaguchi

    (RIKEN, Nishina Center, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan)

  • J. E. Koglin

    (Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory)

  • P. H. Mao

    (Cahill Center for Astrophysics, 1216 East California Boulevard, California Institute of Technology)

  • H. Miyasaka

    (Cahill Center for Astrophysics, 1216 East California Boulevard, California Institute of Technology)

  • K. Mori

    (Columbia Astrophysics Laboratory, Columbia University)

  • M. Perri

    (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)

  • M. J. Pivovaroff

    (Lawrence Livermore National Laboratory)

  • S. Puccetti

    (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)

  • V. Rana

    (Cahill Center for Astrophysics, 1216 East California Boulevard, California Institute of Technology)

  • D. Stern

    (Jet Propulsion Laboratory, California Institute of Technology)

  • N. J. Westergaard

    (DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 327, DK-2800 Lyngby, Denmark)

  • W. W. Zhang

    (NASA Goddard Space Flight Center)

Abstract

The observation of non-uniformly distributed titanium emission in the interior of Cassiopeia A, a core-collapse supernova, is an indicator of asymmetries in the stellar explosion and provides strong evidence for the development of low-mode convective instabilities in such supernovae.

Suggested Citation

  • B. W. Grefenstette & F. A. Harrison & S. E. Boggs & S. P. Reynolds & C. L. Fryer & K. K. Madsen & D. R. Wik & A. Zoglauer & C. I. Ellinger & D. M. Alexander & H. An & D. Barret & F. E. Christensen & W, 2014. "Asymmetries in core-collapse supernovae from maps of radioactive 44Ti in Cassiopeia A," Nature, Nature, vol. 506(7488), pages 339-342, February.
    • Handle: RePEc:nat:nature:v:506:y:2014:i:7488:d:10.1038_nature12997
    DOI: 10.1038/nature12997
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