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9 papers
Constraining the nature of the accreting binary in CXOGBS J174623.5-310550
M. A. P. Torres, S. Repetto, T. Wevers +12
We report optical and infrared observations of the X-ray source CXOGBS J174623.5-310550. This Galactic object was identified as a potential quiescent low-mass X-ray binary accretin…
A gravitational-wave standard siren measurement of the Hubble constant
B. P. Abbott, R. Abbott, T. D. Abbott +1308
The detection of GW170817 in both gravitational waves and electromagnetic waves heralds the age of gravitational-wave multi-messenger astronomy. On 17 August 2017 the Advanced LIGO…
Candidate Hα emission and absorption line sources in the Galactic Bulge Survey
T. Wevers, P. G. Jonker, G. Nelemans +7
We present a catalogue of candidate Hα emission and absorption line sources and blue objects in the Galactic Bulge Survey (GBS) region. We use a point source catalogue of the GBS f…
Investigating the nature of absorption lines in the Chandra X-ray spectra of the neutron star binary 4U 1820-30
E. M. Cackett, J. M. Miller, J. Raymond +5
We use four Chandra gratings spectra of the neutron star low-mass X-ray binary 4U 1820-30 to better understand the nature of certain X-ray absorption lines in X-ray binaries, inclu…
A detection of the donor star of Aquila X-1 during its 2004 outburst?
R. Cornelisse, J. Casares, D. Steeghs +4
Phase-resolved high resolution optical spectroscopy has revealed narrow N III and He II emission lines from the soft X-ray transient Aquila X-1 during its 2004 outburst that move a…
Optical identification of IGR J19140+0951
J. J. M. in 't Zand, P. G. Jonker, G. Nelemans +2
IGR J19140+0951 was discovered by INTEGRAL in 2003 in the 4-100 keV band. Observations with INTEGRAL and RXTE provide a tentative identification as a high-mass X-ray binary (HMXB)…