English
Related papers

Related papers: Cataclysmic Variables from SDSS I. The First Resul…

200 papers

The Catalina Real Time Survey (CRTS) has found over 500 cataclysmic variable (CV) candidates, most of which were previously unknown. We report here on followup spectroscopy of 36 of the brighter objects. Nearly all the spectra are typical…

Solar and Stellar Astrophysics · Physics 2015-06-05 John R. Thorstensen , Julie N. Skinner

We give an identification summary and results of polarimetric, photometric and spectroscopic follow-up observations of new, X-ray bright cataclysmic variables. These were identified as optical counterparts of high galactic latitude sources…

Continuing our work from Paper I (Southworth et al., 2006) we present medium-resolution spectroscopy and broad-band photometry of seven cataclysmic variables (CVs) discovered by the SDSS. For six of these objects we derive accurate orbital…

AM CVn systems are a rare (about a dozen previously known) class of cataclysmic variables, arguably encompassing the shortest orbital periods (down to about 10 minutes) of any known binaries. Both binary components are thought to be…

We present photometry of nine cataclysmic variable stars identified by the Sloan Digital Sky Survey, aimed at measuring the orbital periods of these systems. Four of these objects show deep eclipses, from which we measure their orbital…

Solar and Stellar Astrophysics · Physics 2015-05-14 John Southworth , C. M. Copperwheat , B T Gansicke , S Pyrzas

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

We report the discovery of eclipses and the first orbital period measurements for four cataclysmic variables, plus the first orbital period measurements for one known eclipsing and two magnetic systems. SDSS J093537.46+161950.8 exhibits…

Solar and Stellar Astrophysics · Physics 2015-06-23 John Southworth , C. Tappert , B. T. Gaensicke , C. M. Copperwheat

We present the latest results from a spectroscopic survey designed to uncover the hidden population of AM Canum Venaticorum (AM CVn) binaries in the photometric database of the Sloan Digital Sky Survey (SDSS). We selected ~2000 candidates…

Solar and Stellar Astrophysics · Physics 2015-06-12 P. J. Carter , T. R. Marsh , D. Steeghs , P. J. Groot , G. Nelemans , D. Levitan , A. Rau , C. M. Copperwheat , T. Kupfer , G. H. A. Roelofs

We report on the search for new eclipsing white dwarf plus main-sequence (WDMS) binaries in the light curves of the Catalina surveys. We use a colour selected list of almost 2000 candidate WDMS systems from the Sloan Digital Sky Survey,…

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

We report on XMM-Newton and optical results for 6 cataclysmic variables that were selected from Sloan Digital Sky Survey spectra because they showed strong HeII emission lines, indicative of being candidates for containing white dwarfs with…

Solar and Stellar Astrophysics · Physics 2009-11-13 Eric J. Hilton , Paula Szkody , Anjum Mukadam , Arne Henden , William Dillon , Gary D. Schmidt

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

Time series photometry of 20 Cataclysmic Variables detected by the Catalina Real-time Transient Survey is presented. 14 of these systems have not been observed previously and only two have been examined in-depth. From the observations we…

In a search for cataclysmic variables in the Calan-Tololo Survey we have detected 21 systems, 16 of them previously unknown. In this paper we present detailed time-series photometry for those six confirmed cataclysmic variables that show…

Astrophysics · Physics 2009-11-10 C. Tappert , T. Augusteijn , J. Maza

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 galaxies and other objects are some cataclysmic variables (CVs).…

We present high-speed, three-colour photometry of the eclipsing cataclysmic variables CTCV 1300, CTCV 2354 and SDSS 1152. All three systems are below the observed "period gap" for cataclysmic variables. For each system we determine the…

Cataclysmic variables (CVs) are compact binary systems in which a white dwarf accretes matter from a Roche-lobe-filling companion star. In this study, we searched for new CVs in the Milky Way in the Chandra Source Catalog v2.0,…

Spectra of 38 candidate or known cataclysmic variables are presented. Most are candidate dwarf novae or systems containing possible highly magnetic white dwarfs, while a few (KR Aur, LS Peg, V380 Oph and V694 Mon) are previously known…

Solar and Stellar Astrophysics · Physics 2017-12-27 Paula Szkody , Mark E. Everett , Zhibin Dai , Donald Serna-Grey

Photometric and spectroscopic observations reveal the Sloan Digital Sky Survey cataclysmic variable SDSS J132723.39+652854.2 to be a likely SW Sex star with an orbital period of P = 3.28 hours. The Sloan Digital Sky Survey spectrum shows…

(abridged) We present an account of known cataclysmic variables (CVs) that were detected as X-ray sources in eROSITA X-ray surveys and have Gaia DR3 counterparts. We address standard CVs with main sequence donors and white dwarfs accreting…

Solar and Stellar Astrophysics · Physics 2024-07-31 Axel Schwope , Kira Knauff , Jan Kurpas , Mara Salvato , Beate Stelzer , Laurent Stütz , Dusan Tubín-Arenas