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Revealing the Galactic Population of BHs

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arxiv 1806.07270 v1 pith:MG4LBJ5Y submitted 2018-06-18 astro-ph.HE astro-ph.SR

Revealing the Galactic Population of BHs

classification astro-ph.HE astro-ph.SR
keywords highbinariesblackholengvlasurveywillx-ray
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We discuss the case for using the Next Generation Very Large Array both to discover new black hole X-ray binaries astrometrically, and to characterize them. We anticipate that the ngVLA will be able to find $\sim$100 new black hole X-ray binaries, as well as a host of other interesting radio stars, in a few hundred hour survey. Parallax and astrometric wobble measurements will be achievable in feasible follow-up surveys especially using long baseline capabilities. The ngVLA's high angular resolution, high survey speed, and high frequency sensitivity give it a unique range of parameter space over which it is sensitive.

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