The interstellar medium of galaxies is the reservoir out of which stars are born and into
which stars inject newly created elements as they age. The physical properties of the …

▪ 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 …

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 …

Several independent lines of evidence now point to a connection between the physical
processes that govern radio (ie jet) and X-ray emission from accreting X-ray binaries. We …

We present a new edition of the catalogue of the low-mass X-ray binaries in the Galaxy and
the Magellanic Clouds. The catalogue contains source name (s), coordinates, finding chart …

We have collected the available data from the literature and from public data archives
covering the past two decades for the long-term X-ray and optical light curves of X-ray nova …

The first γ-ray line originating from outside the Solar System that was ever detected is the
511 keV emission from positron annihilation in the Galaxy. Despite 30 years of intense …

Context. The annihilation of positrons in the Galaxy's interstellar medium produces
characteristic gamma-rays with a line at 511 keV. This gamma-ray emission has been …

RESEARCH on microporous solids has focused largely on inorganic materials such as
aluminosilicates (zeolites), aluminophosphates, pillared clays and other layered materials1 …