56 citations · 203 across the 7 of their papers we have counts for
7 papers · 1 filter
NGC300 X-1 and IC10 X-1: a new breed of black hole binary?
R. Barnard, J. S. Clark, U. C. Kolb
[ABRIDGED] IC10 X-1 has recently been confirmed as a black hole (BH) + Wolf-Rayet (WR) X-ray binary, and NGC300 X-1 is thought to be. IC10 X-1 and NGC300 X-1 have similar X-ray pro…
How Many CVs are Crossing the Period Gap? A Test for the Disruption of Magnetic Braking
P. J. Davis, U. Kolb, B. Willems +1
We apply population synthesis techniques to calculate the present day number of two types of white dwarf-main sequence star (WDMS) binaries within the cataclysmic variable period g…
An X-ray spectral survey of the disc of M31 with XMM-Newton
L. Shaw Greening, R. Barnard, U. Kolb +2
We present the results of a complete spectral survey of the X-ray point sources detected in five XMM-Newton observations along the major axis of M31 but avoiding the central bulge,…
A multi-coloured survey of NGC 253 with XMM-Newton: testing the methods used for creating luminosity functions from low-count data
R. Barnard, L. Shaw Greening, U. Kolb
NGC 253 is a local, star-bursting spiral galaxy with strong X-ray emission from hot gas, as well as many point sources. We have conducted a spectral survey of the X-ray population…
On the artificial nature of aperiodic variability in XMM-Newton observations of M31 X-ray sources and the ultraluminous X-ray source NGC 4559 ULX-7
R. Barnard, S. Trudolyubov, U. C. Kolb +3
Context: Power density spectra (PDS) that are characteristic of low mass X-ray binaries (LMXBs) have been previously reported for M31 X-ray sources, observed by XMM-Newton. However…
Theoretical orbital period distributions of cataclysmic variables above the period gap: effects of circumbinary disks
B. Willems, R. Taam, U. Kolb +2
The population of non magnetic cataclysmic variables evolving under the influence of a circumbinary disk is investigated for systems above the upper edge of the period gap at orbit…