8 papers · 1 filter
The orbital period distribution of wide binary millisecond pulsars
B. Willems, U. Kolb
We present results of a binary population synthesis study on the orbital period distribution of wide binary millisecond pulsars forming through four evolutionary channels. In three…
XMM-Newton observations of variability in the X-ray binaries of M31: flares dips and a burst
R. Barnard, U. C. Kolb, J. P. Osborne
The XMM-Newton satellite has made four observations of the core of M31 as part of a survey that will span the entire galaxy. The majority of the X-ray emission is contributed by po…
A first look at cataclysmic variable stars from the 2dF QSO survey
T. R. Marsh, L. Morales-Rueda, D. Steeghs +9
The 2dF QSO survey is a spectroscopic survey of 48,000 point-sources selected by colour with magnitudes in the range 18.35 < B < 20.95. Amongst QSOs, white dwarfs, narrow-line gala…
Irradiation and mass transfer in low-mass compact binaries
H. Ritter, U. Kolb, Z. -Y. Zhang
We study the reaction of low-mass stars to anisotropic irradiation and its importance for the long-term evolution of compact binaries binaries. We show by means of a simple homolog…
The CV Period Minimum
Ulrich Kolb, Isabelle Baraffe
Using improved, up-to-date stellar input physics tested against observations of low-mass stars and brown dwarfs we calculate the secular evolution of low-mass donor CVs, including…
Are the red dwarfs in cataclysmic variables main-sequence stars?
K. Beuermann, I. Baraffe, U. Kolb +1
We show that the secondaries in short-period cataclysmic variables with orbital periods hr are close to the solar-abundance main sequence defined by single field stars. In…