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An infrared ring around the magnetar SGR 1900+14

Author

Listed:
  • S. Wachter

    (Spitzer Science Center, California Institute of Technology, Pasadena, California 91125, USA)

  • E. Ramirez-Ruiz

    (Astronomy & Astrophysics, 201 Interdisciplinary Sciences Building, Santa Cruz, California 95064, USA)

  • V. V. Dwarkadas

    (University of Chicago, 5640 South Ellis Avenue, AAC 010c, Chicago, Illinois 60637, USA)

  • C. Kouveliotou

    (NASA/Marshall Space Flight Center, VP62, NSSTC, 320 Sparkman Drive, Huntsville, Alabama 35805, USA)

  • J. Granot

    (Centre for Astrophysics Research, University of Hertfordshire, College Lane)

  • S. K. Patel

    (Optical Sciences Corporation, 6767 Old Madison Pike, Suite 650, Huntsville, Alabama 35806, USA)

  • D. Figer

    (Chester F. Carlson Center for Imaging Science, Rochester Institute of Technology, 54 Lomb Memorial Drive, Rochester, New York 14623, USA)

Abstract

Magnetars: Ring of fire Magnetars are rotating neutron stars with magnetic fields at least an order of magnitude stronger than those of 'normal' radio pulsars. There are only about a dozen magnetars known to date and their evolutionary history is not yet firmly established. Circumstantial evidence links them to very massive stars as progenitors; now the discovery of an infrared ring or shell around magnetar SGR 1900+14 (a soft gamma repeater) confirms that link. Observations from the Spitzer telescope are consistent with the presence of a dust-free cavity in the magnetar environment — possibly produced by the giant flare emitted by the source in August 1998 — strongly suggesting an association with a cluster of massive stars.

Suggested Citation

  • S. Wachter & E. Ramirez-Ruiz & V. V. Dwarkadas & C. Kouveliotou & J. Granot & S. K. Patel & D. Figer, 2008. "An infrared ring around the magnetar SGR 1900+14," Nature, Nature, vol. 453(7195), pages 626-628, May.
    • Handle: RePEc:nat:nature:v:453:y:2008:i:7195:d:10.1038_nature06987
    DOI: 10.1038/nature06987
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