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Related papers: Cataclysmic Variables from SDSS VII. The Seventh Y…

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Short-period cataclysmic variables (spCVs), with orbital periods below the period gap ($P_{orb}$ < 2 hr), offer insight into the evolutionary models of CVs and can serve as strong emitters of gravitational waves (GWs). To identify new spCV…

The spatial distribution, galactic model parameters and luminosity function of cataclysmic variables (CVs) in the solar neighbourhood have been determined from a carefully established sample of 459 CVs. The sample contains all of the CVs…

Astrophysics · Physics 2008-11-26 T. Ak , S. Bilir , S. Ak , Z. Eker

We present high-speed photometric observations of 25 cataclysmic variables detected by the All Sky Automated Search for Super-Novae (ASAS-SN), the Mobile Astronomical System of the TElescope-Robot (MASTER) and the Catalina Real-Time…

Solar and Stellar Astrophysics · Physics 2019-04-17 K. Paterson , P. A. Woudt , B. Warner , H. Breytenbach , C. K. Gilligan , M. Motsoaledi , J. R. Thorstensen , H. L. Worters

Cataclysmic Variables (CVs) are semi-detached binaries composed of a white dwarf orbiting a lower-mass K or M star. We investigate whether CVs are responsible for a new intriguing feature (the `hook') that appears in the Gaia DR3…

Solar and Stellar Astrophysics · Physics 2024-01-23 Guillaume Dubus , Carine Babusiaux

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

In this work, we present a catalog of cataclysmic variables (CVs) identified from the Sixth Data Release (DR6) of the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST). To single out the CV spectra, we introduce a novel…

We find from high speed photometry of the Sloan Digital Survey cataclysmic variable candidate SDSS J161033.64-010223.3 that it has a double humped modulation, which is probably orbital, with a period of 80.52 minutes, and shows strong ZZ…

Astrophysics · Physics 2009-11-10 Patrick A. Woudt , Brian Warner

By cross matching blue objects from SDSS with GALEX and the astrometric catalogues USNO-B1.0, GSC2.3 and CMC14, 64 new dwarf nova candidates with one or more observed outbursts have been identified. 14 of these systems are confirmed as…

Solar and Stellar Astrophysics · Physics 2014-11-20 Patrick Wils , Boris T. Gaensicke , Andrew J. Drake , John Southworth

Recently, large and homogeneous samples of cataclysmic variables (CVs) identified by the Sloan Digital Sky Survey (SDSS) were published. In these samples, the famous orbital period gap, which is a dearth of systems in the orbital period…

Solar and Stellar Astrophysics · Physics 2024-02-06 Matthias R. Schreiber , Diogo Belloni , Axel D. Schwope

We present time-series photometry of nine cataclysmic variables: EI UMa, V844Her, V751 Cyg, V516 Cyg, GZ Cnc, TY Psc, V1315 Aql, ASAS J002511+1217.12, V1315 Aql and LN UMa. The observations were conducted at various observatories, covering…

Astrophysics · Physics 2008-06-10 C. Papadaki , H. M. J. Boffin , V. Stanishev , P. Boumis , S. Akras , C. Sterken

We have discovered periodic variations in the light curves of two hot DQ stars from the Sloan Digital Sky Survey, SDSS J220029.08-074121.5 and SDSS J234843.30-094245.3. These are the second and third variables detected among the hot DQs and…

Astrophysics · Physics 2009-11-13 B. N. Barlow , B. H. Dunlap , R. Rosen , J. C. Clemens

The NASA {\it Kepler} mission has been in science operation since May 2009 and is providing high precision, high cadence light curves of over 150,000 targets. Prior to launch, nine cataclysmic variables were known to lie within {\it…

Solar and Stellar Astrophysics · Physics 2015-06-15 Steve B. Howell , Mark E. Everett , Sally A. Seebode , Paula Szkody , Martin Still , Matt Wood , Gavin Ramsay , John Cannizzo , Alan Smale

The Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST) will provide a windfall of new transients and variable sources. Here we have performed mock observation simulations to understand LSST's expected detection rates for…

Solar and Stellar Astrophysics · Physics 2025-09-10 D. A. H. Buckley , Y. Tampo , P. Szkody , M. Motsoaledi , S. Scaringi , M. Lochner , N. Rawat , J. P. Marais , B. van Soelen , S. Macfarlane , A. van Dyk

The ESA gamma-ray telescope, INTEGRAL, is detecting relatively more intrinsically rare cataclysmic variables (CVs) than were found by surveys at lower energies. Specifically, a large fraction of the CVs that are INTEGRAL sources consists of…

Solar and Stellar Astrophysics · Physics 2009-11-13 Magaretha L. Pretorius

The potential of the Sloan Digital Sky Survey for wide-field variability studies is illustrated using multi-epoch observations for 3,000,000 point sources observed in 700 deg2 of sky, with time spans ranging from 3 hours to 3 years. These…

Although a large number of orbital periods of cataclysmic variable stars (CVs) have been measured, comparison of period and luminosity distributions with evolutionary theory is affected by strong selection effects. A test has been…

Astrophysics · Physics 2009-11-07 R. C. North , T. R. Marsh , U. Kolb , V. S. Dhillon , C. K. J. Moran

Cataclysmic variables (CVs) are tracers of dynamical evolution in globular clusters. A significant sample has been found by the relatively shallow \Halpha surveys conducted with HST thus far in just three globulars: NGC 6397 (3), NGC 6752…

Astrophysics · Physics 2007-05-23 Jonathan E. Grindlay

We present new time-resolved photometry of 74 cataclysmic variables (CVs), 47 of which are eclipsing. 13 of these eclipsing systems are newly discovered. For all 47 eclipsing systems we show high cadence (1-20 seconds) light curves obtained…

Cataclysmic variables (CVs) exhibit a plethora of variable phenomena many of which require long, uninterrupted light curves to reveal themselves in detail. The month long datasets provided by TESS are well suited for this purpose. TESS has…

Solar and Stellar Astrophysics · Physics 2022-07-19 Albert Bruch
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