Results 101 to 110 of about 10,397 (194)
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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The Secondary Stars of Cataclysmic Variables
, 2011 I review what we know about the donor stars in cataclysmic variables (CVs), focusing particularly on the close link between these binary components and the overall secular evolution of CVs. I begin with a brief overview of the "standard model" of CV evolution and explain why the key observables this model is designed to explain - the period gap and the
openaire +2 more sources
HW Bootis: an enigmatic cataclysmic variable star
, 2014 14 pages, 5 Figures.
Shears, Jeremy +8 more
openaire +2 more sources
Irradiation of the companion star in cataclysmic variables [PDF]
Monthly Notices of the Royal Astronomical Society, 1989 Il est demontre que le rayonnement de l'ecoulement d'accretion au niveau de la naine blanche dans une binaire cataclysmique est incapable de penetrer la photosphere du compagnon. Le rayonnement peut, dans quelques cas, ioniser l'ecoulement d'accretion subsonique juste en dessous du point de Lagrange ...
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Studies and observations of ultraviolet and X-ray sources [PDF]
The status of research undertaken with the IUE satellite for programs on strong binary X-ray stars and X-ray globular clusters is summarized.
Fabbiano, G., Geller, M., Gursky, H.
core +1 more source
Stepanyan's star - A new eclipsing cataclysmic variable
The Astrophysical Journal, 1980 High-speed photometry of the nova-like variable Stepanyan's star shows a 3-hr 48-min orbital period marked by a 2.2-mag eclipse which spans orbital phases 0.91-0.09. The uneclipsed light is variable by typically 0.15 mag on time scales of minutes to seconds and shows no obvious modulation with orbital phase. Intermediate-band colors show an enhancement
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Soft X-Ray Observations of Cataclysmic Variable Stars [PDF]
International Astronomical Union Colloquium, 1979 HEAO-1 observations of a large number of cataclysmic variable stars demonstrated that most of these objects are not bright X-ray sources, even during their eruptive phases.HEAO-1 scanned about 20 dwarf novae while they were undergoing optical outbursts, yet soft X-ray emission (0.18-0.43 keV) was detected only from SS Cyg and U Gem. The 3σ upper limits
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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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Preemptive iodide treatment in the event of a nuclear disaster: The prepper's guide to the galaxy
Experimental Physiology, Volume 110, Issue 12, Page 1771-1776, December 1, 2025.
Per Karkov Cramon +2 more
wiley +1 more source
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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