The Galactic Bulge Survey X-ray observations

Jonker, P.G.
Bassa, C.G.
Nelemans, G.A.
Wijnands, R.
Zand, J.J.M. in't
Haaften, L.M. van
Groot, P.J.
Verbunt, F.

Open link

Publication date

January 2011

DOI

10.26093/cds/vizier.21940018

Publisher

ViZieR

Abstract

Item does not contain fulltextWe introduce the Galactic Bulge Survey (GBS) and we provide the Chandra source list for the region that has been observed to date. Among the goals of the GBS are constraining the neutron star (NS) equation of state and the black hole (BH) mass distribution via the identification of eclipsing NS and BH low-mass X-ray binaries (LMXBs). The GBS targets two strips of 6°x1° (12deg2 in total), one above (1°<b<2°) and one below (-2°<b←1°) the Galactic plane in the direction of the Galactic center at both X-ray and optical wavelengths. By avoiding the Galactic plane (-1°<b<1°) we limit the influence of extinction on the X-ray and optical emission but still sample relatively large number densities of sources. The survey...