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Exploring a New Population of Compact Objects: X-ray and IR Observations of the Galactic Centre

Bandyopadhyay, Reba M. and Gosling, Andrew J. and Eikenberry, Stephen E. and Muno, Michael P. and Blundell, Katherine M. and Podsiadlowski, Philipp and Mikles, Valerie J. and DeWitt, Curtis (2008) Exploring a New Population of Compact Objects: X-ray and IR Observations of the Galactic Centre. In: OBSERVATIONAL EVIDENCE FOR BLACK HOLES IN THE UNIVERSE: Proceedings of the 2nd Kolkata Conference on Observational Evidence for Black Holes in the Universe, Kolkata India, 10–15 February 2008 and the Satellite Meeting on Black Holes, Neutron ... AIP Conference Proceedings. No.1053. American Institute of Physics , Melville, NY, pp. 87-90. ISBN 978-0-7354-0582-0.

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I describe the IR and X-ray observational campaign we have undertaken for the purpose of determining the nature of the faint discrete X-ray source population discovered by Chandra in the Galactic Center (GC). Data obtained for this project includes a deep Chandra survey of the Galactic Bulge; deep, high resolution IR imaging from VLT/ISAAC, CTIO/ISPI, and the UKIDSS Galactic Plane Survey (GPS); and IR spectroscopy from VLT/ISAAC and IRTF/SpeX. By cross-correlating the GC X-ray imaging from Chandra with our IR surveys, we identify candidate counterparts to the X-ray sources via astrometry. Using a detailed IR extinction map, we are deriving magnitudes and colors for all the candidates. Having thus established a target list, we will use the multi-object IR spectrograph FLAMINGOS-2 on Gemini-South to carry out a spectroscopic survey of the candidate counterparts, to search for emission line signatures which are a hallmark of accreting binaries. By determining the nature of these X-ray sources, this FLAMINGOS-2 Galactic Center Survey will have a dramatic impact on our knowledge of the Galactic accreting binary population.

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Additional Information:© 2008 American Institute of Physics. Issue Date: 8 October 2008.
Subject Keywords:infrared sources (astronomical), Galactic centre, X-ray sources (astronomical)
Series Name:AIP Conference Proceedings
Issue or Number:1053
Record Number:CaltechAUTHORS:BANaipcp08b
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:12222
Deposited By: Archive Administrator
Deposited On:29 Oct 2008 22:10
Last Modified:08 Nov 2021 22:26

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