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Title:
Determining the nature of the faint X-ray source population near the Galactic Centre
Authors:
Bandyopadhyay, Reba M.; Gosling, A. J.; Blundell, K. M.; Podsiadlowski, P.; Einkenberry, S. A.; Mikles, V. J.; Miller-Jones, J. C. A.; Bauer, F. E.
Publication:
Proceedings of the VI Microquasar Workshop: Microquasars and Beyond. September 18-22, 2006, Como, Italy., p.13.1
Publication Date:
00/2006
Origin:
POS
Bibliographic Code:
2006smqw.confE..13B

Abstract

We present results of a multi-wavelength program to study the faint discrete X-ray source pop- ulation discovered by Chandra in the Galactic Centre (GC). From IR imaging obtained with the VLT we identify candidate K-band counterparts to 75% of the X-ray sources in our sample. By combining follow-up VLT K-band spectroscopy of a subset of these candidate counterparts with the magnitude limits of our photometric survey, we suggest that only a small percentage of the sources are HMXBs, while the majority are likely to be canonical LMXBs and CVs at the dis- tance of the GC. In addition, we present our discovery of highly structured small-scale (5-15'') extinction towards the Galactic Centre. This is the finest-scale extinction study of the Galactic Centre to date. Finally, from these VLT observations we are able to place constraints on the stellar counterpart to the "bursting pulsar" GRO J1744-28.
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