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We present a catalogue of 507 cataclysmic variables (CVs) observed in SDSS I to IV including 70 new classifications collated from multiple archival data sets. This represents the largest sample of CVs with high-quality and homogeneous…

I present brief status reports on three large observational projects that are designed to test our current understanding of the evolution of cataclysmic variables (CVs): The spectroscopic selection of new CVs in the Hamburg Quasar Survey,…

Astrophysics · Physics 2007-05-23 Boris Gaensicke

The formation and evolution of X-ray sources in globular clusters is likely to be affected by the cluster internal dynamics and the stellar interactions in the cluster dense environment.Several observational studies have revealed a…

Astrophysics of Galaxies · Physics 2016-11-15 Jongsuk Hong , Enrico Vesperini , Diogo Belloni , Mirek Giersz

We critically re-examine the available data on the spectral types, masses and radii of the secondary stars in cataclysmic variables (CVs) and low-mass X-ray binaries (LMXBs), using the new catalogue of Ritter & Kolb (1998) as a starting…

Astrophysics · Physics 2009-10-30 D. A. Smith , V. S. Dhillon

The population synthesis of cataclysmic variables below the period is investigated. A grid of detailed binary evolutionary sequences has been calculated and included in the simulations to take account of additional angular momentum losses…

Astrophysics · Physics 2009-11-13 B. Willems , U. Kolb , E. L. Sandquist , R. E. Taam , G. Dubus

We report the discovery of two new magnetic cataclysmic variables with brown dwarf companions and long orbital periods ($P_{\rm orb}=95\pm1$ and $104\pm2$ min). This discovery increases the sample of candidate magnetic period bouncers with…

Assuming that white dwarf (WD) magnetic fields are generated by a crystallization- and rotation-driven dynamo, the impact of the late appearance of WD magnetic fields in cataclysmic variables (CVs) has been shown to potentially solve…

Solar and Stellar Astrophysics · Physics 2025-06-02 Matthias R. Schreiber , Diogo Belloni

We measure the spatial distribution and hard X-ray luminosity function of cataclysmic variables (CVs) using the INTEGRAL all-sky survey in the 17-60 keV energy band. The vast majority of the INTEGRAL detected CVs are intermediate polars…

Astrophysics · Physics 2009-11-13 M. Revnivtsev , S. Sazonov , R. Krivonos , H. Ritter , R. Sunyaev

The Galactic orbital parameters of 159 cataclysmic variables in the Solar neighbourhood are calculated, for the first time, to determine their population types using published kinematical parameters. Population analysis shows that about 6…

Astrophysics of Galaxies · Physics 2015-06-12 T. Ak , S. Bilir , T. Guver , H. Cakmak , S. Ak

Rapid binary population synthesis codes are often used to investigate the evolution of compact-object binaries. They typically rely on analytical fits of single-star evolutionary tracks and parameterized models for interactive phases of…

High Energy Astrophysical Phenomena · Physics 2021-12-08 Monica Gallegos-Garcia , Christopher P L Berry , Pablo Marchant , Vicky Kalogera

Outbursts in two classes of interacting binary systems, the symbiotic stars (SSs) and the cataclysmic variables (CVs), show a number of similarities in spite of very different orbital periods. Typical values for SSs are in the order of…

Solar and Stellar Astrophysics · Physics 2015-02-18 Augustin Skopal

Strong selection effects are present in observational samples of cataclysmic variables (CVs), complicating comparisons to theoretical predictions. The selection criteria used to define most CV samples discriminate heavily against the…

Astrophysics · Physics 2009-11-13 Magaretha L. Pretorius , Christian Knigge

Secondary stars in cataclysmic variables (CVs) follow a well defined period-density relation. Thus, canonical donor stars in CVs are generally low-mass stars of spectral type M. However, several CVs have been observed containing secondary…

Solar and Stellar Astrophysics · Physics 2015-06-19 A. Rebassa-Mansergas , S. G. Parsons , C. M. Copperwheat , S. Justham , B. T. Gaensicke , M. R. Schreiber , T. R. Marsh , V. S. Dhillon

We present a sample of 30 well observed Post Common Envelope Binaries (PCEBs). Deriving the cooling age of the white dwarfs, we show that the PCEB population is dominated by young systems. Having calculated the orbital evolution of the…

Astrophysics · Physics 2009-11-07 M. R. Schreiber , B. T. Gaensicke

During a visual search through the Kepler main-field lightcurves, we have discovered a cataclysmic variable (CV) that experienced only a single 4-day long outburst over four years, rising to three times the quiescent flux. During the four…

We present the results of a search for cataclysmic variables (CVs) in the Calan-Tololo survey. We detected a total number of 21 CVs, 12 of them are previously unknown objects. Our results suggest that the mismatch between the theoretically…

Astrophysics · Physics 2007-05-23 C. Tappert , T. Augusteijn , J. Maza

In this paper, which is the first in a series of papers associated with cataclysmic variables and related objects, we introduce the CATUABA code, a numerical machinery written for analysis of the MOCCA simulations, and show some first…

Astrophysics of Galaxies · Physics 2016-08-12 Diogo Belloni , Mirek Giersz , Abbas Askar , Nathan Leigh , Arkadiusz Hypki

Cataclysmic Variables (CVs) are interacting binaries consisting of at least three components that control their colour and magnitude. Using Gaia we here investigate the influence of the physical properties of these binaries on their…

Solar and Stellar Astrophysics · Physics 2019-12-04 Javier Abril , Linda Schmidtobreick , Alessandro Ederoclite , Carlos López-Sanjuan

Dynamical interactions in globular clusters (GCs) significantly impact the formation and evolution of binary sources, including cataclysmic variables (CVs). This study investigates the connection between dynamical states of GCs and X-ray…

High Energy Astrophysical Phenomena · Physics 2024-05-30 Kwangmin Oh , Jongsuk Hong , C. Y. Hui , Sangin Kim , Mirek Giersz

We have discovered a new high proper motion cataclysmic variable (CV) in the SUPERBLINK proper motion survey, which is sensitive to stars with proper motions greater than 40 mas/yr. This CV was selected for follow-up observations as part of…

Solar and Stellar Astrophysics · Physics 2015-06-22 Julie N. Skinner , John R. Thorstensen , Sébastien Lépine
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