Results 121 to 130 of about 2,487,342 (212)

An Equipotential Disk Model with Irradiation for Nova-like Variables

open access: yesThe Astrophysical Journal
The 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
doaj   +1 more source

Balmer decrements as a new diagnostic for period-bounce cataclysmic variable stars

open access: yesAstronomy & Astrophysics
Context. Cataclysmic variable stars (CVs) evolve towards shorter orbital periods (Porb) until they reach a minimum Porb of ∼80 min. Beyond this point, the donor star becomes out of thermal equilibrium or increasingly degenerate, causing the system to ...
Hernández-Díaz Santiago   +2 more
doaj   +1 more source

Observations of red‐giant variable stars by Aboriginal Australians

open access: yes, 2017
Aboriginal Australians carefully observe the properties and positions of stars, including both overt and subtle changes in their brightness, for subsistence and social application. These observations are encoded in oral tradition.
Duane W. Hamacher, Hamacher, Duane W.
core   +1 more source

Detection of Transitions between Dwarf Nova Outbursts, Standstills, and IW And–type Cycles

open access: yesThe Astrophysical Journal
IW 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
doaj   +1 more source

Spectroscopic classification of cataclysmic variable candidates

open access: yes, 2005
We present low-resolution optical spectroscopy for six cataclysmic variable candidates and the old nova V888 Cen. We confirm the classification as cataclysmic variable for LB 9963 and FQ Mon, while the other four candidates turn out to be different types
Galli, L   +4 more
core  

Stunted Outbursts and Z Cam–like Behaviors in the Long-term Light Curves of Novalike Cataclysmic Variables

open access: yesThe Astrophysical Journal Supplement Series
A 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
doaj   +1 more source

On the Masses of Cataclysmic Variable Stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1973
openaire   +1 more source

Period Analysis of Eclipsing Cataclysmic Variable Stars

open access: yes
12 pages, 24 figures, submitted to ...
Ellaqany, Mennatalla Mahmoud   +4 more
openaire   +2 more sources

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