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Related papers: Cataclysmic Variables

200 papers

The Outburst Catalogue contains a wide variety of observational properties for 722 dwarf nova-type (DN) cataclysmic variables (CVs) and 309 CVs of other types from the Catalina Real-time Transient Survey. In particular, it includes the…

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

We explore the observational appearance of the merger of a low-mass star with a white dwarf (WD) binary companion. We are motivated by Schreiber et al. (2016), who found that multiple tensions between the observed properties of cataclysmic…

Solar and Stellar Astrophysics · Physics 2021-12-22 Brian D. Metzger , Yossef Zenati , Laura Chomiuk , Ken J. Shen , Jay Strader

The unprecedented sky coverage and observing cadence of the All-Sky Automated Survey for SuperNovae (ASAS-SN) has resulted in the discovery and continued monitoring of a large sample of Galactic transients. The vast majority of these are…

Flickering is a universal phenomenon in accreting astronomical systems which still defies detailed physical understanding. It is particularly evident in cataclysmic variables (CVs). Attempting to define boundary conditions for models, the…

Solar and Stellar Astrophysics · Physics 2021-03-29 Albert Bruch

I give an overview of the rich phenomenology of dwarf nova oscillations (DNOs) and Quasi-periodic Oscillations (QPOs) observed in cataclysmic variable stars (CVs). The favoured interpretation of these rapid brightness modulations (3 - >1000…

Astrophysics · Physics 2009-11-10 Brian Warner

Spiral shocks in cataclysmic variables (CVs) are the result of tidal interactions of the mass donor star with the accretion disc. Their study is fundamental for our understanding of angular momentum transfer in discs. In our quest to learn…

Astrophysics · Physics 2007-05-23 L. Morales-Rueda , T. R. Marsh

Using a sample of Nova-like stars from the Ritter and Kolb catalog, we examine the relationship between their Gaia determined absolute magnitude and the inclination of the binary system. Webbink et al. (1987) derived a relationship between…

Solar and Stellar Astrophysics · Physics 2018-10-24 Steve B. Howell , Elena Mason

We reconstruct the evolutionary path followed by cataclysmic variables (CVs) from the observed mass-radius relationship of their donor stars. Along the way, we update the semi-empirical CV donor sequence of Knigge (2006) and present a…

Solar and Stellar Astrophysics · Physics 2015-05-27 Christian Knigge , Isabelle Baraffe , Joseph Patterson

The orbital evolution of cataclysmic variables in which the companion is illuminated by a fraction of the accretion luminosity consists of irradiation-driven limit cycles on thermal timescales, superimposed on a secular evolution toward…

Astrophysics · Physics 2009-10-30 P. McCormick , J. Frank

The formation of cataclysmic variables (CVs) has long been modeled as a product of common envelope evolution (CEE) in isolated binaries. However, a significant fraction of intermediate-mass stars -- the progenitors of the white dwarfs (WDs)…

Solar and Stellar Astrophysics · Physics 2025-07-14 Cheyanne Shariat , Kareem El-Badry , Smadar Naoz , Antonio C. Rodriguez , Jan van Roestel

Superhumps are among the abundant variable phenomena observed in the light curves of cataclysmic variables (CVs). They come in two flavours as positive and negative superhumps, distinguished by periods slightly longer or shorter,…

Solar and Stellar Astrophysics · Physics 2022-12-28 Albert Bruch

I report on the discovery of two cataclysmic variables in the same field in Lyra originally identified from their magnitudes in USNO-B1.0 catalogue and Palomar images. The historical light curves were analyzed on 300+ photographic plates…

Solar and Stellar Astrophysics · Physics 2011-07-20 D. V. Denisenko

Accretion discs are fundamental to much of astronomy. They can occur around stars both young and old, around compact objects they provide a window into the extremes of physics, and around supermassive black holes in galaxy centres they…

Solar and Stellar Astrophysics · Physics 2024-06-07 Gabriella Zsidi , C. J. Nixon , T. Naylor , J. E. Pringle

The population of non magnetic cataclysmic variables evolving under the influence of a circumbinary disk is investigated for systems above the upper edge of the period gap at orbital periods greater than 2.75hr. For a fractional mass input…

Astrophysics · Physics 2008-11-26 B. Willems , R. Taam , U. Kolb , G. Dubus , E. Sandquist

Cataclysmic variables undergo periodic nova explosions during which a finite mass of material is expelled on a short timescale. The system widens and, as a result, the mass-transfer rate drops. This state of hibernation may account for the…

Astrophysics · Physics 2008-11-26 Rebecca G. Martin , Christopher A. Tout

Novalike variables are a subgroup of cataclysmic variables (CVs) that -- unlike dwarf novae -- do not exhibit strong brightenings in their long-term light curves. Variations over time scales of weeks, months or years are mostly restricted…

Solar and Stellar Astrophysics · Physics 2024-10-29 Albert Bruch

In this chapter we consider the processes which can lead to X-ray emission from different types of cataclysmic variable stars (CVs). CVs are semi-detached, binary star systems where material is transferred from the donor star (also known as…

High Energy Astrophysical Phenomena · Physics 2023-04-05 K. L. Page , A. W. Shaw

The search was performed for cataclysmic variable stars with outlying infrared magnitudes in USNO-B1.0 catalog. The selection was limited to objects in the Northern hemisphere with (B1-R1) < 1 and (R2-I) > 3.5. The search method is…

Solar and Stellar Astrophysics · Physics 2015-05-30 D. V. Denisenko

We present spectroscopy and orbital periods Porb for 30 apparently non-magnetic cataclysmic binaries with periods below about 3 hours, nearly all of which are dwarf novae, mostly of the SU Ursae Majoris subclass. We then turn to the…

Solar and Stellar Astrophysics · Physics 2020-06-17 John R. Thorstensen