Chandra localization of XTE J1906+090 and discovery of its optical and infrared counterparts

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Göğüş, Ersin and Patel, Sandeep K. and Wilson, Colleen A. and Woods, Peter M. and Finger, Mark H. and Kouveliotou, Chryssa (2005) Chandra localization of XTE J1906+090 and discovery of its optical and infrared counterparts. Astrophysical Journal, 632 (issue ). pp. 1069-1074. ISSN 0004-637X

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We present the Chandra identification and localization of the transient X-ray source XTE J1906+090 and the discovery of its optical and infrared counterparts. Our analysis of archival Chandra ACIS-I observations of the field found the source approximately 8 away from the position determined earlier with the RXTE PCA. We have confirmed the source identification with timing analysis of the X-ray data, which detected the source spin period of 89.6 s. The best Chandra position for the source is R.A. = 19h04m47491, decl. = +09024140. Subsequently, we performed optical observations of the field around the new location and discovered a coincident optical source with R-band magnitude of 18.7. A search in the Two Micron All Sky Survey catalog revealed an infrared point source with J = 15.2, H = 14.2, and K = 13.5, whose location is also coincident with our Chandra and optical positions. Our results add fresh evidence for a Be/X-ray transient nature for XTE J1906+090.
Item Type: Article
Uncontrolled Keywords: infrared: stars — pulsars: individual (XTE J1906+090) — X-rays: binaries
Subjects: Q Science > QB Astronomy
Divisions: Faculty of Engineering and Natural Sciences
Depositing User: Ersin Göğüş
Date Deposited: 21 Dec 2005 02:00
Last Modified: 26 Apr 2022 08:12

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