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Extended hard-X-ray emission in the inner few parsecs of the Galaxy

Author

Listed:
  • Kerstin Perez

    (Columbia Astrophysics Laboratory, Columbia University
    Haverford College, 370 Lancaster Avenue)

  • Charles J. Hailey

    (Columbia Astrophysics Laboratory, Columbia University)

  • Franz E. Bauer

    (Instituto de Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile
    Millennium Institute of Astrophysics, Vicuña Mackenna 4860
    Space Science Institute)

  • Roman A. Krivonos

    (Space Science Laboratory, UC Berkeley)

  • Kaya Mori

    (Columbia Astrophysics Laboratory, Columbia University)

  • Frederick K. Baganoff

    (Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology)

  • Nicolas M. Barrière

    (Space Science Laboratory, UC Berkeley)

  • Steven E. Boggs

    (Space Science Laboratory, UC Berkeley)

  • Finn E. Christensen

    (DTU Space, National Space Institute, Technical University of Denmark)

  • William W. Craig

    (Space Science Laboratory, UC Berkeley
    Lawrence Livermore National Laboratory)

  • Brian W. Grefenstette

    (Cahill Center for Astronomy and Astrophysics, 1200 East California Boulevard, MC 290-17, California Institute of Technology)

  • Jonathan E. Grindlay

    (Harvard-Smithsonian Center for Astrophysics)

  • Fiona A. Harrison

    (Cahill Center for Astronomy and Astrophysics, 1200 East California Boulevard, MC 290-17, California Institute of Technology)

  • Jaesub Hong

    (Harvard-Smithsonian Center for Astrophysics)

  • Kristin K. Madsen

    (Cahill Center for Astronomy and Astrophysics, 1200 East California Boulevard, MC 290-17, California Institute of Technology)

  • Melania Nynka

    (Columbia Astrophysics Laboratory, Columbia University)

  • Daniel Stern

    (Jet Propulsion Laboratory, California Institute of Technology)

  • John A. Tomsick

    (Space Science Laboratory, UC Berkeley)

  • Daniel R. Wik

    (NASA Goddard Space Flight Center)

  • Shuo Zhang

    (Columbia Astrophysics Laboratory, Columbia University)

  • William W. Zhang

    (NASA Goddard Space Flight Center)

  • Andreas Zoglauer

    (Space Science Laboratory, UC Berkeley)

Abstract

A distinct hard-X-ray emission component is reported within the central four parsecs by eight parsecs of the Galaxy; this emission is more sharply peaked toward the Galactic Centre than is the surface brightness of the soft X-ray population, and all the interpretations of this emission pose significant challenges to our understanding of stellar evolution, binary formation and cosmic-ray production in the Galactic Centre.

Suggested Citation

  • Kerstin Perez & Charles J. Hailey & Franz E. Bauer & Roman A. Krivonos & Kaya Mori & Frederick K. Baganoff & Nicolas M. Barrière & Steven E. Boggs & Finn E. Christensen & William W. Craig & Brian W. G, 2015. "Extended hard-X-ray emission in the inner few parsecs of the Galaxy," Nature, Nature, vol. 520(7549), pages 646-649, April.
    • Handle: RePEc:nat:nature:v:520:y:2015:i:7549:d:10.1038_nature14353
    DOI: 10.1038/nature14353
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