Results 81 to 90 of about 301 (183)
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
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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
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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
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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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Analysis of cataclysmic variable star energy distributions
The Astronomical Journal, 1982 I analyze spectrophotometry of cataclysmic variable stars covering the wavelength range 0.32--1.1 ..mu..m. The contributions due to the cool secondary star and the accretion disk are separated, subject to the requirement that the spectrum attributed to the accretion disk be ''physically plausible.'' The results for individual stars, which are largely ...
openaire +1 more source
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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Synergies of THESEUS with the large facilities of the 2030s and guest observer opportunities. [PDF]
Exp Astron (Dordr), 2021 Rosati P +39 more
europepmc +1 more source
The Astrophysical JournalAs cataclysmic variables (CVs) that have evolved past their minimum orbital period, period bouncers have been proposed to be a substantial fraction of the CV population, yet the observed number is significantly lower, posing the “missing bouncer” problem.
Xiao-jie Xu +3 more
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