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Related papers: Cataclysmic variables from a ROSAT/2MASS selection…

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We report the discovery of a new cataclysmic variable in MASTER database which is identical to the faint ROSAT X-ray source 1RXS J015017.0+375614. The object was observed in outbursts to 14.9m on 2012 Nov. 28 and to 14.3m on 2013 Jan. 07,…

Solar and Stellar Astrophysics · Physics 2013-07-26 A. Lazareva , N. Voroshilov , D. Denisenko , A. Kuznetsov , E. Gorbovskoy , V. Lipunov

We present medium-resolution VLT/FORS2 spectroscopy of six cataclysmic variables discovered by the Sloan Digital Sky Survey. We determine orbital periods for SDSS J023322.61+005059.5 (96.08 +/- 0.09 min), SDSS J091127.36+084140.7 (295.74…

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 number of discovered non-radially pulsating white dwarfs (WDs) in cataclysmic variables (CVs) is increasing rapidly by the aid of the Sloan Digital Sky Survey (SDSS). We performed photometric observations of two additional objects, SDSS…

Astrophysics · Physics 2007-05-23 R. Nilsson , H. Uthas , M. Ytre-Eide , J-E. Solheim , B. Warner

Magnetic cataclysmic variables are complex accreting binary systems with short orbital periods. Here we present circular polarimetry of five magnetic cataclysmic variable candidates. 1RXS J161008.0+035222, V1432 Aql, and 1RXS…

IGR J20084+3221 is a previously unclassified Galactic source first detected by INTEGRAL. Chandra observations led to possible classifications of either a magnetic Cataclysmic Variable (mCV) or high mass X-ray binary (HMXB) based on the…

High Energy Astrophysical Phenomena · Physics 2026-05-19 Julian Gerber , Jeremy Hare , John A. Tomsick , Daniel Stern , Aarran W. Shaw

The spectrum of the recently discovered cataclysmic variable star (CV) ASAS-SN 13cl shows that a secondary star with spectral type K4 (+- 2 subclasses) contributes roughly half the optical light. The radial velocities of the secondary are…

Solar and Stellar Astrophysics · Physics 2015-06-23 John R. Thorstensen

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

Binary evolution theory predicts that accreting white dwarfs with sub-stellar companions dominate the Galactic population of cataclysmic variables (CVs). In order to test these predictions, it is necessary to identify these systems, which…

Solar and Stellar Astrophysics · Physics 2018-01-31 J. V. Hernandez Santisteban , C. Knigge , M. L. Pretorius , M. Sullivan , B. Warner

A personal selection of noteworthy X-ray results on CVs are presented, with emphasis on XMM-Newton and Chandra observations. Progressing roughly from broad-band view to narrow-band, high spectral resolution studies, I summarize: the energy…

Astrophysics · Physics 2007-05-23 K. Mukai

Among hard X-ray Galactic sources detected in the Swift and INTEGRAL surveys, those discovered as accreting white dwarf binaries have suprisingly boosted in number in the recent years. The majority are identified as magnetic Cataclysmic…

High Energy Astrophysical Phenomena · Physics 2020-01-24 D. de Martino , F. Bernardini , K. Mukai , M. Falanga , N. Masetti

Intermediate Polars (IPs) are a group of cataclysmic variables (CVs) which are thought to contain white dwarfs which have a magnetic field strength in the range ~0.1-10MG. A significant fraction of the X-ray sources detected in recent deep…

Astrophysics · Physics 2009-11-13 Gavin Ramsay , Peter J. Wheatley , A. J. Norton , Pasi Hakala , Darren Baskill

We present analysis of archival X-ray data obtained with the XMM-Newton and Suzaku for a new Intermediate Polar identified as a counterpart of an INTEGRAL discovered gamma-ray source, IGR J17195-4100. We report a new period of 1053.7\pm12.2…

High Energy Astrophysical Phenomena · Physics 2015-06-11 V. Girish , K. P. Singh

Over six years of operation, the Catalina Real-time Transient Survey (CRTS) has identified 1043 cataclysmic variable (CV) candidates --- the largest sample of CVs from a single survey to date. Here we provide spectroscopic identification of…

Solar and Stellar Astrophysics · Physics 2015-06-22 E. Breedt , B. T. Gaensicke , A. J. Drake , P. Rodriguez-Gil , S. G. Parsons , T. R. Marsh , P. Szkody , M. R. Schreiber , S. G. Djorgovski

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…

From optical photometry the cataclysmic variable RX J0944.5+0357 is shown to have a double-peaked pulse profile with a period of ~2160 s. The two peaks vary rapidly in relative amplitude. Often most of the optical power is concentrated in…

Astrophysics · Physics 2009-11-07 Patrick A. Woudt , Brian Warner

Using a recent Chandra ACIS observation of the eclipsing cataclysmic variable (CV) V1460 Her (2MASS J16211735+4412541) with a fast-rotating ($P_{\rm spin} = 38.9$~s) white dwarf, we estimated a flux $F_{0.5-7 {\rm keV}}^{\rm abs} = (1.9\pm…

Solar and Stellar Astrophysics · Physics 2025-01-08 Erik B. Monson , George G. Pavlov , Gordon P. Garmire

We present the results of a systematic study of cataclysmic variables (CVs) and related systems, combining detailed binary-population synthesis (BPS) models with a grid of 120 binary evolution sequences calculated with a Henyey-type stellar…

Astrophysics · Physics 2007-05-23 Ph. Podsiadlowski , Z. Han , S. Rappaport

The majority of cataclysmic variable (CV) stars contain a stochastic noise component in their light curves, commonly referred to as flickering. This can significantly affect the morphology of CV eclipses and increases the difficulty in…

Context. Observations of cataclysmic variables in globular clusters appear to show a dearth of outbursts compared to those observed in the field. A number of explanations have been proposed, including low mass-transfer rates and/or moderate…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Natalie Webb , Mathieu Servillat
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