Results 101 to 110 of about 2,487,342 (212)
On the eclipsing cataclysmic variable star HBHA 4705-03
, 2013 We present observations and analysis of a new eclipsing binary HBHA 4705-03. Using decomposition of the light curve into accretion disk and hot spot components, we estimated photometrically the mass ratio of the studied system to be q=0.62 +-0.07. Other fundamental parameters was found with modeling. This approach gave: white dwarf mass M_1 = (0.8 +- 0.
Rutkowski, A. +3 more
openaire +4 more sources
The Eclipsing Novalike Cataclysmic Variable CRTS SSS100505 J093417-174421
The Astrophysical JournalTime-resolved optical photometry, complemented by Transiting Exoplanet Survey Satellite (TESS) data and long-term survey light curves, reveals that the transient object CRTS SSS100505 J093417-174421 is an eclipsing novalike cataclysmic variable of the VY
Raymundo Baptista +5 more
doaj +1 more source
The Astrophysical JournalA recent development in the study of magnetic cataclysmic variable stars (mCVs) has been the identification of asynchronously spinning mCVs with orbital periods
Colin Littlefield +4 more
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The Long-term Activity of the Postnovae Q Cygni and BK Lyncis
The Astronomical JournalWe show the postnova activity of Q Cyg (Nova Cyg 1876) and BK Lyn (probable Nova Lyn 101). We use both CCD and photographic photometric observations.
Vojtěch Šimon
doaj +1 more source
Exploring new emission line diagnostics for accreting compact objects [PDF]
Theory predicts that a large fraction of CVs should have passed through the minimum period. The Sloan Digital Sky Survey (sdss) sample is finally unearthing these systems in large numbers.
van Spaandonk, Lieke
core
The Evolution of Cataclysmic Variables under Various Magnetic Braking Prescriptions
The Astrophysical JournalRecent studies have revealed discrepancies between observations and the predictions of the standard magnetic braking (MB). Although alternative models have been broadly discussed in neutron star binaries, they have not been systematically tested in ...
Wen-Shi Tang +4 more
doaj +1 more source
The Photometric Study of EX Dra: A Dwarf Nova Exhibiting a Titled and Precessional Disk
The Astrophysical JournalWe present a photometric study of EX Dra, a dwarf nova that has been extensively observed by the Transiting Exoplanet Survey Satellite. The data reveal the occurrence of 20 complete outbursts, exhibiting several intriguing and rare characteristics.
Wei Liu +5 more
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Negative Superhumps in Cataclysmic Variables Driven by Retrograde Apsidal Disk Precession
The Astrophysical Journal LettersNegative superhumps (NSHs) are photometric modulations in cataclysmic variables with periods slightly shorter than the orbital period. They are usually attributed to retrograde nodal precession of a tilted accretion disk, although the origin and ...
David Vallet +3 more
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The Orbital Period Changes for Novae
The Astrophysical JournalCataclysmic variables (CVs) are close interacting binaries in which a white dwarf accretes materials from a low-mass main-sequence companion. CVs can experience nova eruptions due to low mass transfer rates.
Wenshi Tang, Xiang-Dong Li, Bo Wang
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V1047 Cen: The First Z And-type Outburst Observed in the Classical Nova Binary
The Astrophysical JournalIn 2019, the classical nova V1047 Cen experienced an unusual outburst, the nature of which has not yet been clearly determined. In this paper, we show that the 2019 V1047 Cen outburst is of Z And-type—a type that is characteristic of and has so far been ...
Augustin Skopal, Natalia Shagatova
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