Add to ORKGROSAT and Chandra-observations have discovered several ultra-luminous X-ray sources (ULXs) exceeding luminosities of 5 10 erg=s. Assuming isotropic emission, these sources should obey the Eddington limit, requireing the existence of intermediate-mass black holes of 20-500 M . However, the measured inner disk temperatures are too high for these masses and there is no convincing creation mechanism known for these objects
We investigate models for the class of ultraluminous nonnuclear X-ray sources (i.e., ultraluminous c...
Accumulating evidence indicates that some of ultra-luminous X-ray sources (ULXs) are intermediate ma...
Abstract Ultraluminous X-ray sources (ULXs) are likely to include different phys-ical types of objec...
Ultra-luminous X-ray sources (ULXs) have only recently been established as a class of off-nuclear po...
I suggest that there are two classes of ultraluminous X-ray sources (ULXs), corresponding to super-E...
The nature of ultraluminous X-ray sources (ULXs) – off-nuclear extragalactic sources with luminosity...
Accepted for publication in Proceedings of Science (INTEGRAL 2012), Eds. A. Goldwurm, F. Lebrun and ...
I suggest that the beaming factor in bright ultraluminous X-ray sources (ULXs) varies as b ∝ ṁ−2, w...
The discovery almost three decades ago of non-nuclear, point-like X-ray sources with X-ray luminosit...
We test competing black hole accretion models proposed for Ultra-Luminous X-ray sources (ULXs). We d...
We review observations of ultraluminous X-ray sources (ULXs). X-ray spectroscopic and timing studies...
To test the idea that ultraluminous X-ray sources (ULXs) in external galaxies represent a class of a...
Copyright © 2018 by the Editors.All rights reserved. The origin of Ultraluminous X-ray sources (ULXs...
I suggest that the beaming factor in bright ultraluminous X-ray sources (ULXs) varies as Graphic, wh...
A puzzling class of exotic objects, which have been known about for more than 30 years, is reaching ...
We investigate models for the class of ultraluminous nonnuclear X-ray sources (i.e., ultraluminous c...
Accumulating evidence indicates that some of ultra-luminous X-ray sources (ULXs) are intermediate ma...
Abstract Ultraluminous X-ray sources (ULXs) are likely to include different phys-ical types of objec...
Ultra-luminous X-ray sources (ULXs) have only recently been established as a class of off-nuclear po...
I suggest that there are two classes of ultraluminous X-ray sources (ULXs), corresponding to super-E...
The nature of ultraluminous X-ray sources (ULXs) – off-nuclear extragalactic sources with luminosity...
Accepted for publication in Proceedings of Science (INTEGRAL 2012), Eds. A. Goldwurm, F. Lebrun and ...
I suggest that the beaming factor in bright ultraluminous X-ray sources (ULXs) varies as b ∝ ṁ−2, w...
The discovery almost three decades ago of non-nuclear, point-like X-ray sources with X-ray luminosit...
We test competing black hole accretion models proposed for Ultra-Luminous X-ray sources (ULXs). We d...
We review observations of ultraluminous X-ray sources (ULXs). X-ray spectroscopic and timing studies...
To test the idea that ultraluminous X-ray sources (ULXs) in external galaxies represent a class of a...
Copyright © 2018 by the Editors.All rights reserved. The origin of Ultraluminous X-ray sources (ULXs...
I suggest that the beaming factor in bright ultraluminous X-ray sources (ULXs) varies as Graphic, wh...
A puzzling class of exotic objects, which have been known about for more than 30 years, is reaching ...
We investigate models for the class of ultraluminous nonnuclear X-ray sources (i.e., ultraluminous c...
Accumulating evidence indicates that some of ultra-luminous X-ray sources (ULXs) are intermediate ma...
Abstract Ultraluminous X-ray sources (ULXs) are likely to include different phys-ical types of objec...