Results 1 to 10 of about 3,407,558 (216)
Rapid oscillations in cataclysmic variables [PDF]
Astrophysics and Space Science, 1986 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 s time scales) is that they are magnetic in nature - magnetically channelled accretion from the inner ...
Allen, Sue
exaly +7 more sources
White Dwarfs in Cataclysmic Variables: An Update [PDF]
Acta Polytechnica CTU Proceedings, 2015 In this review, we summarize what is currently known about the surface temperatures of accreting white dwarfs in nonmagnetic and magnetic cataclysmic variables (CVs) based upon synthetic spectral analyses of far ultraviolet data.
E. M. Sion, P. Godon
doaj +2 more sources
Evolution and Outbursts of Cataclysmic Variables
Acta Polytechnica CTU Proceedings, 2015 Mass transfer and accretion are very important to understand the evolution and observational properties of cataclysmic variables (CVs). Due to the lack of an accretion disk, eclipsing profiles of polars are the best source to study the character of mass ...
S.-B. Qian +6 more
doaj +4 more sources
Magnetic Cataclysmic Variables [PDF]
AIP Conference Proceedings, 2010 We present a study on magnetic cataclysmic variables (polars) using the collected data from the literature. These parameters (mass, radius, magnetic field intensity, mass transfer rate, etc.) and the relations between them are important to understand their nature, to explain the observed properties of them and to test the current evolutionary models.
B. Kalomeni +2 more
openaire +3 more sources
Automatic Search of Cataclysmic Variables Based on LightGBM in LAMOST-DR7
Universe, 2021 The search for special and rare celestial objects has always played an important role in astronomy. Cataclysmic Variables (CVs) are special and rare binary systems with accretion disks.
Bin Jiang, Zhiyuan Hu
exaly +3 more sources
Transients from the Cataclysmic Deaths of Cataclysmic Variables [PDF]
The Astrophysical Journal, 2021 Abstract We explore the observational appearance of the merger of a low-mass star with a white dwarf (WD) binary companion. We are motivated by recent work finding that multiple tensions between the observed properties of cataclysmic variables (CVs) and standard evolution models are resolved if a large fraction of CV binaries merge as a ...
Brian D. Metzger +4 more
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Cataclysmic Variables as Supernova Ia Progenitors [PDF]
Journal of Astronomy and Space Sciences, 2012 Although the identification of the progenitors of type Ia supernovae (SNeIa) remains controversial, it is generally accepted that they originate from binary star systems in which at least one component is a carbon-oxygen white dwarf (WD); those systems ...
Stella Kafka
doaj +1 more source
The Galactic kinematics of cataclysmic variables [PDF]
Astrophysics and Space Science, 2015 Kinematical properties of CVs were investigated according to population types and orbital periods, using the space velocities computed from recently updated systemic velocities, proper motions and parallaxes. Reliability of collected space velocity data are refined by removing 34 systems with largest space velocity errors.
Ak, T. +7 more
openaire +5 more sources
White Dwarfs in Cataclysmic Variable Stars: Surface Temperatures and Evolution [PDF]
Journal of Astronomy and Space Sciences, 2012 A summary is presented of what is currently known about the surface temperatures of accreting white dwarfs (WDs) detected in non-magnetic and magnetic cataclysmic variables (CVs) based upon synthetic spectral analyses of far ultraviolet data.
Edward M. Sion
doaj +1 more source
The Accreting White Dwarfs in Cataclysmic Variables
Galaxies, 2022 Accreting white dwarfs (WDs) in cataclysmic variables (CVs) provide crucial insights about the accretion of mass and angular momentum in all types of binaries, including accreting NSs and BHs.
Edward M. Sion, Patrick Godon
doaj +1 more source