Results 21 to 30 of about 34,923 (243)

KIC 9406652: A laboratory for tilted disks in cataclysmic variable stars. II. Modeling of the orbital light curves [PDF]

open access: yesNippon Tenmon Gakkai obun kenkyu hokoku, 2021
KIC 9406652, one of the recently identified IW And-type dwarf novae, is the best target for studying the tilted disk in cataclysmic variable stars. In a previous paper by Kimura et al.
M. Kimura, Y. Osaki
semanticscholar   +1 more source

Optical Studies of Eight AM Herculis–type Cataclysmic Variable Stars [PDF]

open access: yesAstronomical Journal, 2020
We report detailed follow-up observations of eight cataclysmic variable stars (CVs) that are apparently AM Her stars, also called polars. For all, we either determine orbital periods for the first time or improve on existing determinations. The seven for
J. Thorstensen   +4 more
semanticscholar   +1 more source

Spectroscopic Studies of 30 Short-period Cataclysmic Variable Stars and Remarks on the Evolution and Population of Similar Objects [PDF]

open access: yesAstronomical Journal, 2020
We present spectroscopy and orbital periods Porb for 30 apparently nonmagnetic cataclysmic binaries with periods below ∼3 hr, nearly all of which are dwarf novae, mostly of the SU Ursae Majoris subclass.
J. Thorstensen
semanticscholar   +1 more source

On the Masses of Cataclysmic Variable Stars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1973
B. Warner
openaire   +2 more sources

An X-Ray-dim “Isolated” Neutron Star in a Binary?

open access: yesThe Astrophysical Journal Letters, 2023
We report the discovery of a dark companion to 2MASS J15274848+3536572 with an orbital period of 6.14 hr. Combining the radial velocity from LAMOST observations and modeling of the multiband light curve, one obtains a mass function of ≃0.131 M _⊙ , an ...
Jie Lin   +15 more
doaj   +1 more source

VY Sculptoris stars as magnetic cataclysmic variables [PDF]

open access: yesAstronomy & Astrophysics, 2002
AbstractWe show that VY Scl stars must be magnetized in order to account for the absence of outbursts during their low and intermediate states. Absence of outbursts during low states requires only rather low magnetic moments but in systems in which the drops and rises of luminosity are slower than it takes for the accretion disc to adjust viscously to ...
Hameury, J. -M., Lasota, J. -P.
openaire   +3 more sources

Two Long-period Cataclysmic Variable Stars: ASASSN-14ho and V1062 Cyg [PDF]

open access: yesAstronomical Journal, 2019
We report spectroscopy and photometry of the cataclysmic variable stars ASASSN-14ho and V1062 Cyg. Both are dwarf novae with spectra dominated by their secondary stars, which we classify approximately as K4 and M0.5, respectively.
L. Gasque   +7 more
semanticscholar   +1 more source

An Evenly Spaced LSST Cadence for Rapidly Variable Stars [PDF]

open access: yesAstrophysical Journal Supplement Series, 2023
Stars exhibit a bewildering variety of rapidly variable behaviors ranging from explosive magnetic flares to stochastically changing accretion to periodic pulsations or rotation.
E. Feigelson, F. Bianco, R. Bonito
semanticscholar   +1 more source

KIC 9406652: A laboratory for tilted disks in cataclysmic variable stars

open access: yesNippon Tenmon Gakkai obun kenkyu hokoku, 2020
KIC 9406652 is a cataclysmic variable, sub-classified as an “IW And-type” star, which shows repeated standstills with oscillatory variations terminated by brightening.
M. Kimura, Y. Osaki, T. Kato
semanticscholar   +1 more source

Accretion in Cataclysmic Variable Stars [PDF]

open access: yes, 2005
We consider accretion onto the white dwarfs in cataclysmic variables in relation to nova eruptions, dwarf nova outbursts, hibernation and non-radial oscillations.
Warner, Brian, Woudt, Patrick A.
openaire   +2 more sources

Home - About - Disclaimer - Privacy