Transient X-ray sources in the field of the Unidentified Gamma-Ray Source TeV J2032+4130 in Cygnus

Abstract

We present an analysis of Chandra ACIS observations of the field of TeV J2032+4130, the first unidentified TeV source, detected serendipitously by HEGRA. This deep (48.7 ksec) observation of the field follows up on an earlier 5 ksec Chandra director's discretionary observation. Of the numerous point-like X-ray sources in the field, the brightest are shown to be a mixture of early and late-type stars. We find that several of the X-ray sources are transients, exhibiting rapid increases in count rates by factors 3-10, and similar in nature to the one, hard absorbed transient source located in the earlier Chandra observation of the field. None of these transient sources are likely to correspond to the TeV source. Instead, we identify a region of diffuse X-ray emission within the error circle of the TeV source and consider its plausible association.

arXiv comment4 pages LaTeX, 3 postscript figures, to appear in Proceedings of the conference "The Multi-Messenger Approach to High-Energy Gamma-ray Sources" Barcelona/Spain (2006)

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• An unidentified TeV source in the vicinity of Cygnus OB2
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• CHANDRA/VLA Follow-up of TeV J2032+4131, the Only Unidentified TeV Gamma-ray Source
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Cited by in corpus (5)

• Radio detection of LAT PSRs J1741-2054 and J2032+4127: no longer just gamma-ray pulsars
• XMM-Newton observations of the first unidentified TeV gamma-ray source TeV J2032+4130
• Detection of X-Ray Emission from the Unidentified TeV Gamma-Ray Source TeV J2032+4130
• X-ray and Radio Variabilities of PSR J2032+4127 near Periastron
• The Molecular Environment of the Gamma-ray Source TeV J2032+4130