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Related papers: ULTRACAM photometry of eclipsing cataclysmic varia…

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Understanding and quantifying the contribution of known classes of transient and variable sources is an important lesson to be learned from the manifold of pre-cursors programs of the near-future large synoptic sky survey programs like…

We summarize some of the compelling new scientific opportunities for understanding stars and stellar systems that can be enabled by sub-milliarcsec (sub-mas) angular resolution, UV-Optical spectral imaging observations, which can reveal the…

The detection of heavy elements at suprasolar abundances in the atmospheres of some accreting white dwarfs in cataclysmic variables, coupled with the high temperatures needed to produce these elements requires explosive thermonuclear…

Solar and Stellar Astrophysics · Physics 2015-06-22 Edward M. Sion

The formation of low-mass stars in molecular clouds involves accretion disks and jets, which are of broad astrophysical interest. Accreting stars represent the closest examples of these phenomena. Star and planet formation are also…

Solar and Stellar Astrophysics · Physics 2020-05-21 P. C. Schneider , H. M. Günther , K. France

In 2013, the method of determining mass ratios of dwarf novae using stage A superhumps (growing superhumps) was established. This method is a dynamical one in that it relies only on celestial mechanics. It is not dependent on an…

Solar and Stellar Astrophysics · Physics 2022-01-11 Taichi Kato

Cataclysmic Variables are a distinct class of interacting binaries, transferring mass from a donor star to a degenerate accretor, a white dwarf. We here review X-ray observations of these systems, with some emphasis on what has been…

Astrophysics · Physics 2007-05-23 Erik Kuulkers , Andrew Norton , Axel Schwope , Brian Warner

Results of photometric and spectroscopic investigations of the recently discovered eclipsing cataclysmic variable star HBHA 4705-03 are presented. The emission spectra of the system show broad hydrogen and helium emission lines. The bright…

Solar and Stellar Astrophysics · Physics 2012-10-02 D. G. Yakin , V. F. Suleimanov , V. V. Shimansky , V. V. Vlasyuk , O. I. Spiridonova

[abridged abstract] We present and analyze Hubble Space Telescope observations of the eclipsing nova-like cataclysmic variable UX UMa obtained with the Faint Object Spectrograph. Two eclipses each were observed with the G160L grating…

Astrophysics · Physics 2009-10-30 C. Knigge , K. S. Long , R. A. Wade , R. Baptista , K. Horne , I. Hubeny , R. G. M. Rutten

Taking advantage of the now available Gaia EDR3 parallaxes, we carry out an archival {\it Hubble Space Telescope} (HST) far ultraviolet spectroscopic analysis of 10 cataclysmic variable systems, including 5 carefully selected eclipsing…

Solar and Stellar Astrophysics · Physics 2022-03-30 Patrick Godon , Edward M. Sion

V407 Vul (RXJ1914.4+2456) and HM Cnc (RXJ0806.3+1527) are X-ray emitting stars with X-ray light curves that are 100% modulated on periods of 569 and 321 seconds respectively. These periods are thought possibly to represent the orbital…

Purely photometric models can be used to determine the binary parameters of eclipsing cataclysmic variables with a high degree of precision. However, the photometric method relies on a number of assumptions, and to date there have been very…

Solar and Stellar Astrophysics · Physics 2015-06-03 C. M. Copperwheat , T. R. Marsh , S. G. Parsons , R. Hickman , D. Steeghs , E. Breedt , V. S. Dhillon , S. P. Littlefair , C. Savoury

We present the software tool FITDisk, a precompiled-binary Windows GUI version of our smoothed particle hydrodynamics cataclysmic variable accretion disk research code. Cataclysmic variables are binary star systems in which a compact…

Astrophysics · Physics 2009-11-11 Matt A. Wood , Josh Dolence , James C. Simpson

The dynamics of photo-excited charge carriers, particularly their transport and interactions with defects and interfaces, play an essential role in determining the performance of a wide range of solar and optoelectronic devices. A thorough…

Materials Science · Physics 2017-08-07 Bolin Liao , Ebrahim Najafi

The tomographic method "Physical Parameter Eclipse Mapping" is a tool to reconstruct spatial distributions of physical parameters (like temperatures and surface densities) in accretion discs of cataclysmic variables. After summarizing the…

Astrophysics · Physics 2007-05-23 Sonja Vrielmann

We present a status report on our high speed photometric survey of faint Cataclysmic Variables, which is concentrating on old novae.

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

With the prevalence of wide-field, time-domain photometric sky surveys, the number of eclipsing white dwarf systems being discovered is increasing dramatically. An efficient method to follow these up will be key to determining any…

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

We developed software for detection of variable stars using CCD photometry. It works with "varfind data" that could be exported after processing CCD frames using C-Munipack. Our goals were maximum automation and support of large fields of…

Instrumentation and Methods for Astrophysics · Physics 2018-12-18 Vitalii Breus

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

Ultraluminous X-ray sources (ULXs) represent the closest and most accessible laboratories to study sustained super-Eddington accretion onto compact objects. Over the past decade, the discoveries of coherent pulsations in a few ULXs has…

High Energy Astrophysical Phenomena · Physics 2025-12-24 R. Amato , M. Bachetti , R. Soria , A. Gúrpide , M. Imbrogno , C. Salvaggio , R. Salvaterra , M. Del Santo , S. Scaringi , P. Casella , A. Wolter