We review the likely population, observational properties, and broad implications of stellar-
mass black holes and ultraluminous x-ray sources. We focus on the clear empirical rules …

Aims. During the last~ 50 years, the population of black hole candidates in X-ray binaries
has increased considerably, with 59 Galactic objects being detected in transient low-mass X …

With the advent of more sensitive all-sky instruments, the transient universe is being probed
in greater depth than ever before. Taking advantage of available resources, we have …

In this article, we will briefly review the current empirical understanding of the relation
between accretion state and outflows in accreting stellar mass black holes. The focus will be …

The existing radio and X-ray flux correlation for Galactic black holes in the hard and
quiescent states relies on a sample which is mostly dominated by two sources (GX 339− 4 …

ABSTRACT Using the Very Long Baseline Array and the European Very Long Baseline
Interferometry Network, we have made a precise measurement of the radio parallax of the …

We perform the first systematic search of all NICER archival observations of black hole (and
candidate) low-mass X-ray binaries for signatures of reverberation. Reverberation lags …

We report new radio observations of a sample of 36 neutron star (NS) X-ray binaries, more
than doubling the sample in the literature observed at current-day sensitivities. These …

We report on deep, coordinated radio and X-ray observations of the black hole X-ray binary
XTE J1118+ 480 in quiescence. The source was observed with the Karl G. Jansky Very …

We present the radio and X-ray monitoring campaign of the 2019/2020 outburst of MAXI
J1348–630, a new black hole X-ray binary (BH XRB) discovered in 2019 January. We …