The donor of Aquila X-1 revealed by high-angular resolution near-infrared spectroscopy
The donor of Aquila X-1 revealed by high-angular resolution near-infrared spectroscopy
Abstract The low-mass X-ray binary Aquila X-1 is one of the most active neutron star X-ray transients. Despite its relatively bright quiescent optical counterpart, the detection of its companion has been hampered by the presence of a nearby interloper star. Using the Spectrograph for INtegral Field Observations in the Near …