Results 111 to 120 of about 10,397 (194)
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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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
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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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An Equipotential Disk Model with Irradiation for Nova-like Variables
The Astrophysical JournalThe reflection effect is here incorporated within an earlier analytic binary system light- and velocity-curve model that includes a circumstellar equipotential disk.
R. E. Wilson, W. Van Hamme
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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
Detection of Transitions between Dwarf Nova Outbursts, Standstills, and IW And–type Cycles
The Astrophysical JournalIW And–type objects represent a rare and intriguing subclass of cataclysmic variables that challenge the classical disk instability model. Due to their long timescales, often lasting several months, observed samples are scarce, leaving the physics of ...
Qi-Bin Sun +8 more
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The Astrophysical Journal Supplement SeriesA program of long-term ground-based photometric monitoring of 134 old novae and novalike cataclysmic variables (CVs) has been concluded. In this paper, we display, analyze, and discuss the light curves of 33 of these targets, which have shown “stunted ...
R. K. Honeycutt +2 more
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Tilted Disk Precession and Negative Superhumps in HS 2325+8205: A Multiwindow Analysis
The Astrophysical JournalTilted disk precession exists in different objects. Negative superhumps (NSHs) in cataclysmic variable stars are believed to arise from the interaction between the reverse precession of a tilted disk and the streams from the secondary star.
Qi-Bin Sun +5 more
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An X-Ray View of the Cataclysmic Variable V902 Mon: Discovery of an X-Ray Eclipse
The Astrophysical JournalV902 Mon is one of a few eclipsing intermediate polars (IPs) and shows deep eclipses in the optical lightcurves. The presence of a strong Fe K α fluorescence line in its X-ray spectrum and its low X-ray flux compared to other IPs suggests significant ...
Nazma Islam, Koji Mukai
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A New IW And-type Star: Karachurin 12 with Tilted Disks and Diverse Cycles
The Astrophysical JournalThe IW And-type phenomenon in cataclysmic variables presents a significant challenge to the accretion disk instability model. Using photometric data from the All-Sky Automated Survey for Supernovae, the Zwicky Transient Facility, and the Transiting ...
Qi-Bin Sun +6 more
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