English
Related papers

Related papers: Evolutionary Effects of Irradiation in Cataclysmic…

200 papers

Cataclysmic Variables (CVs) are close binary systems where mass is transferred from a red dwarf star to a white dwarf star via an accretion disk. The flickering is observed as stochastic variations in the emitted radiation both in the…

Astrophysics · Physics 2009-11-11 Fabiola Mariana A. Ribeiro , Marcos P. Diaz

Outflows in the form of fast winds from the accretion disk appear in nearly all high accretion rate cataclysmic variables (CVs), both novalikes (NLs) and dwarf novae in outburst (DN). The primary signatures of CV winds are broad,…

Astrophysics · Physics 2007-05-23 C. S. Froning

We study the chaotic and secular evolution of hierarchical quadruple systems in the $3+1$ configuration, focusing on the evolution of mutual inclination of the inner binaries as the system undergoes coupled Lidov-Kozai (LK) oscillations. We…

Earth and Planetary Astrophysics · Physics 2017-12-27 Evgeni Grishin , Dong Lai , Hagai B. Perets

Using improved, up-to-date stellar input physics tested against observations of low-mass stars and brown dwarfs we calculate the secular evolution of low-mass donor cataclysmic variables (CVs), including those which form with a brown dwarf…

Astrophysics · Physics 2009-10-31 Ulrich Kolb , Isabelle Baraffe

The evolution of planetary systems around white dwarfs is crucial to understanding the presence of planetary material in the atmospheres of white dwarfs. These systems uniquely probe exoplanetary compositions. Periodic signals in the…

Earth and Planetary Astrophysics · Physics 2025-06-26 Yuqi Li , Amy Bonsor , Oliver Shorttle , Laura K. Rogers

Finite eccentricities in mass-transferring eccentric binary systems can be explained by taking into account mass-loss and mass-transfer processes that often occur in these systems. These processes can be treated as perturbations to the…

Solar and Stellar Astrophysics · Physics 2016-07-06 Fani Dosopoulou , Vicky Kalogera

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

We present spectroscopic and photometric observations of the cataclysmic variable CW 1045+525. Both the optical spectrum and the photometric lightcurve show a strong contribution of a K5V - M0V secondary. We derive an orbital period P_orb =…

Astrophysics · Physics 2009-11-07 C. Tappert , J. R. Thorstensen , W. H. Fenton , N. Bennert , L. Schmidtobreick , A. Bianchini

A substantial fraction of Cataclysmic Variables (CVs) reveals non-solar abundances. A comprehensive list of CVs which includes those that have been examined for these abundances is given. Three possible sources of these non-solar abundances…

Solar and Stellar Astrophysics · Physics 2021-06-23 Warren M. Sparks , Edward M. Sion

Applications of the thermal-viscous disc instability model to various classes of cataclysmic variable very often require the accretion disc to be truncated. I argue that in most cases this inner truncation must be due to the white dwarf's…

Astrophysics · Physics 2007-05-23 J. -P. Lasota

We review our knowledge of the origin and phenomenology of low states (also known as VY Scl states) in cataclysmic variables, making special emphasis on the cataclysmic variable population found just above the period gap. This orbital…

Solar and Stellar Astrophysics · Physics 2011-12-06 P. Rodríguez-Gil , L. Schmidtobreick , K. S. Long , T. Shahbaz , B. T. Gänsicke , M. A. P. Torres

Results of a multi-color study of the variability of the magnetic cataclysmic variable BY Cam are presented. The observations were obtained at the Korean 1.8m and Ukrainian 2.6m, 1.2m and 38-cm telescopes in 2003-2005, 56 observational runs…

Recent spectroscopic observations have identified several cataclysmic variables non-solar metal abundances. We present theoretical models which examine the level of core evolution expected for CV secondaries prior to contact. Our results…

Astrophysics · Physics 2015-06-24 Steve B. Howell

Context. The evolution of cataclysmic variables (CVs) - interacting binaries where a low-mass donor transfers matter to a white dwarf via an accretion disk - is critically controlled by magnetic braking (MB). Significant uncertainties…

Solar and Stellar Astrophysics · Physics 2026-02-06 Bingyao Zhou , Chunhua Zhu , Guoliang Lü , Sufen Guo , Helei Liu , Farkhodjon Khamrakulov

Dynamical interactions in globular clusters (GCs) significantly impact the formation and evolution of binary sources, including cataclysmic variables (CVs). This study investigates the connection between dynamical states of GCs and X-ray…

High Energy Astrophysical Phenomena · Physics 2024-05-30 Kwangmin Oh , Jongsuk Hong , C. Y. Hui , Sangin Kim , Mirek Giersz

Using photometric ULTRACAM observations of three new short period cataclysmic variables, we model the primary eclipse lightcurves to extract the orbital separation, masses, and radii of their component stars. We find donor masses of 0.060…

We derive the conservative secular evolution of precessing compact binaries to second post-Newtonian order accuracy, with leading-order spin-orbit, spin-spin and mass quadrupole-monopole contributions included. The emerging closed system of…

General Relativity and Quantum Cosmology · Physics 2016-09-21 Márton Tápai , Zoltán Keresztes , László Árpád Gergely

The evolution of Cataclysmic Variables (CVs) is driven by period-changes ($\dot{P}$), for which the long-venerable consensus is the Magnetic Braking Model (MBM). The MBM has its only distinctive assumption being a power-law `recipe'…

Solar and Stellar Astrophysics · Physics 2024-04-22 Bradley E. Schaefer

Cataclysmic variables were long considered to be close binaries consisting of a white dwarf and a Roche-lobe-filling, near-zero-age main-sequence (ZAMS) red or brown dwarf. Recent massive surveys have uncovered an increasing number of…

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
‹ Prev 1 3 4 5 6 7 10 Next ›