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Astronomers find a “cataclysmic” pair of stars with the shortest orbit yet（图）
“灾难性”恒星 恒星 双星系统
2023/6/9
Nearly half the stars in our galaxy are solitary like the sun. The other half comprises stars that circle other stars, in pairs and multiples, with orbits so tight that some stellar systems could fit ...
A critical analysis of three near-infrared photometric methods of estimating distances to cataclysmic variables
Stars: novae cataclysmic variables Stars:distances parallaxes Stars:statistics
2011/10/13
A critical analysis of three methods of estimating distances to cataclysmic variables (CVs) is performed. These methods, by Ak et al., Beuermann, and Knigge, all use near-infrared (JHK or Ks) magnitud...
I report on the discovery of two cataclysmic variables in the same field in Lyra originally identified from their magnitudes in USNO-B1.0 catalogue and Palomar images. The historical light curves were...
New Cataclysmic Variable 1RXS J073346.0+261933 in Gemini
stars cataclysmic variables X-ray sources.
2011/9/29
In course of the search for the optical identifications associated with ROSAT X-ray sources we have found a highly variable object with the very unusual long-term behavior, color indices and high X-ra...
Cataclysmic Variables and Other Compact Binaries in the Globular Cluster NGC 362: Candidates from Chandra and HST
cataclysmic binaries close binary stars globular clusters X-ray binaries
2010/11/10
Highly sensitive and precise X-ray imaging from Chandra, combined with the superb spatial resolution of HST optical images, dramatically enhances our empirical understanding of compact binaries such a...
Wavelets with Ridges: A High-Resolution Representation of Cataclysmic Variable Time-Series
methods data analysis — techniques photometric
2010/11/12
Quasi-periodic oscillations and dwarf nova oscillations occur in dwarf novae and nova-like variables during outburst and occasionally during quiescence, and have analogues in high-mass X-ray binaries ...
Virtual Observatory based identification of AX J194939+2631 as a new cataclysmic variable
High Energy Astrophysical Phenomena (astro-ph.HE)
2011/1/6
We report the discovery of a new cataclysmic variable (CV) among unidentified objects from the ASCA Galactic Plane Survey made using the Virtual Observatory data mining.
Modeling of the spectral energy distribution of the cataclysmic variable TT Ari and evaluation of the system parameters
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/23
The spectral energy distribution (SED) of the TT Ari system, which is well known from published IUE and optical photometric observations, was modeled by a steady-state accretion \alpha-disc around a w...
1RXS J180834.7+101041 is a new cataclysmic variable with non-uniform disc
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/23
Results of photometric and spectroscopic investigations of the recently discovered disc cataclysmic variable star 1RXS J180834.7+101041 are presented.
X-rays and Gamma-rays from Cataclysmic Variables: The example case of Intermediate Polar V1223 Sgr
High Energy Astrophysical Phenomena (astro-ph.HE)
2010/12/23
The accretion of matter onto intermediate polar White Dwarfs (IPWDs) seems to provide attractive conditions for acceleration of particles to high energies in a strongly magnetized turbulent region at ...
Accretion Disks in Evolved Cataclysmic Variables
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/22
We explore conditions and structure of accretion disks in short-period Cata- clysmic Variables (CVs), which have evolved beyond the period minimum. We show that accretion discs in systems with extreme...
Doppler Tomography of Cataclysmic Variables with a 6.5-m class Telescope
Doppler Tomography 6.5-m class Telescope Cataclysmic Variables
2009/7/1
Doppler Tomography of Cataclysmic Variables with a 6.5-m class Telescope。
A VLA survey of magnetic cataclysmic variable stars
magnetic cataclysmic variable stars A VLA survey
2009/6/17
A VLA survey of magnetic cataclysmic variable stars。
Hydrodynamic models of the accretion stream in Magnetic cataclysmic variables
Hydrodynamic models Magnetic cataclysmic variables
2009/6/17
Hydrodynamic models of the accretion stream in Magnetic cataclysmic variables。
Possible density determination of the nebular component Of cataclysmic variables with the n iii 4641/4635 line ratio
nebular component n iii 4641 cataclysmic variables 4635 line ratio
2009/6/17
Possible density determination of the nebular component Of cataclysmic variables with the n iii 4641/4635 line ratio。