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American Astronomical Society, Astrophysical Journal, 2(563), p. L133-L137, 2001

DOI: 10.1086/338360

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Possible Infrared Counterparts to the Soft Gamma-Ray Repeater SGR 1806-20

Journal article published in 2001 by Shannon Patel ORCID, S. S. Eikenberry, M. A. Garske, D. Hu, M. A. Jackson, S. G. Patel, D. J. Barry, M. R. Colonno, J. R. Houck
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

We report the discovery of possible infrared counterparts to SGR 1806-20. We use archival Chandra observations to determine the location of SGR 1806-20 to less than 1″ accuracy. We then locate two infrared objects within this error circle in AT-band (2.2 μm) images of this field. Based on the X-ray absorption toward SGR 1806-20 and the extinction toward the nearby star cluster, we discuss the likelihood of association for the possible counterparts and the implications for SGR 1806-20's physical properties and origins.