Massive black holes (BHs) are at once exotic and yet ubiquitous, residing at the centers of
massive galaxies in the local Universe. Recent years have seen remarkable advances in …

▪ Abstract Black holes of stellar mass and neutron stars in binary systems are first detected
as hard X-ray sources using high-energy space telescopes. Relativistic jets in some of these …

We describe the public ESO near-IR variability survey (VVV) scanning the Milky Way bulge
and an adjacent section of the mid-plane where star formation activity is high. The survey …

Abstract Massive Primordial Black Holes (MPBH) can be formed after inflation due to broad
peaks in the primordial curvature power spectrum that collapse gravitationally during the …

Context. The ESO public survey VISTA variables in the Vía Láctea (VVV) started in 2010.
VVV targets 562 sq. deg in the Galactic bulge and an adjacent plane region and is expected …

Some fraction of the material ejected in a core collapse supernova explosion may remain
bound to the compact remnant, and eventually turn around and fall back. We show that the …

The distribution of radio to optical fluxes in active galactic nuclei (AGNs) is bimodal. The
physical origin for this bimodality is not understood. In this Letter I describe observational …

Accretion of gas onto black holes is thought to power the relativistic jets of material ejected
from active galactic nuclei (AGN) and the 'microquasars' located in our Galaxy,,. In …

The X-ray source known as GRS1915+ 105 belongs to a group dubbed 'microquasars',.
These objects are binary systems which sporadically eject matter at speeds that appear …

This two-part book is devoted to classic fundamentals and current practices and
perspectives of modern plasma astrophysics. This first part uniquely covers all the basic …