NOAO >   Observing Info >   Approved Programs >   2015B-0267

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Program Information for 2015B-0267


PI: Jerome A Orosz, San Diego State U., jorosz@mail.sdsu.edu
Address: Department of Astronomy, 5500 Campanile Drive, SAN DIEGO, CA 92182-1221 USA

CoI: William F Welsh, San Diego State U.

Title: An optical search for black holes and neutron stars in the Kepler field

Abstract: All of the known stellar-mass black holes (and a large number of neutron stars) are in "X-ray binaries" that were discovered because of their bright X-ray emission. Since the requirement to be in an X-ray binary places strong observational biases on the discovery of stellar-mass black holes, the 21 X-ray binaries that have confirmed black holes represents the tip of the iceberg. We have begun an optical survey using the Kepler data to look for quiescent X-ray binaries based on the morphology of their light curves. Any such discoveries will be interesting in their own right, and the rate of such objects discovered in our survey (or even the lack of such objects) will place meaningful constraints on the formatio theories of low-mass X-ray binaries. Spectroscopic confirmation will be needed and we propose herein to obtain spectra of 24 of our most promising candidates using the Gemini North telescope.

Program Type: Standard/Galactic

Scheduled Nights:
Run 1 (2015B):  GEM-NQ/GMOSN -- 17.5hrs band 3 (GN-2015B-Q-84)
Run 2 (2015B):  KP-4m/KOSMOS -- 3n on Sep 04 - Sep 06 2015


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NOAO >   Observing Info >   Approved Programs >   2015B-0267

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