Cataclysmic Variable Stars [PDF]
International Astronomical Union Colloquium, 1984 AbstractThe properties of cataclysmic variable outbursts are reviewed, and interpreted in terms of dynamical instabilities by the red component, and subsequent evolution of the white dwarf accretion disc subject to a mass transfer burst in the transfer stream.
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An evolved donor star in the long-period cataclysmic variable HS 0218+3229 [PDF]
, 2009 Context. We present time-resolved spectroscopy and photometry of HS 0218+3229, a new long-period cataclysmic variable discovered within the Hamburg Quasar Survey.
P. Rodríguez-Gil +7 more
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Orbital Decay in an Accreting and Eclipsing 13.7 Minute Orbital Period Binary with a Luminous Donor
The Astrophysical Journal Letters, 2023 We report the discovery of ZTF J0127+5258, a compact mass-transferring binary with an orbital period of 13.7 minutes. The system contains a white dwarf accretor, which likely originated as a post–common envelope carbon–oxygen (CO) white dwarf, and a warm
Kevin B. Burdge +26 more
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HS 2237+8154 : on the onset of mass transfer or entering the period gap? [PDF]
, 2004 We report follow-up observations of a new white dwarf/red dwarf binary HS 2237+8154, identified as a blue variable star from the Hamburg Quasar Survey. Ellipsoidal modulation observed in the R band as well as the radial velocity variations measured from
Araujo-Betancor +32 more
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On the evidence for brown-dwarf secondary stars in cataclysmic variables [PDF]
, 2002 We present the K-band spectrum of the cataclysmic variable LL And, obtained using NIRSPEC on Keck-II. The spectrum shows no evidence for the absorption features observed by Howell & Ciardi (2001), which these authors used to claim a detection of a brown ...
Dhillon, V. S. +2 more
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Cataclysmic Variable Stars [PDF]
Highlights of Astronomy, 1998 The evolution of single stars on and away from the main sequence is well understood. A degenerate core is formed in a star as the star leaves the main sequence and expands to a giant with a radius typically 50 - 500 Ro . Observationally it is known that most stars are members of binary systems, and among these many have orbital periods less than 100 y.
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A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates
Geophysical Monograph Series, Page 47-54., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky +2 more
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Transmuted gravity wave signals from primordial black holes
Physics Letters B, 2018 Primordial black holes (PBHs) interacting with stars in binaries lead to a new class of gravity wave signatures that we explore. A small 10−16–10−7M⊙ PBH captured by a neutron star or a white dwarf will eventually consume the host.
Volodymyr Takhistov
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Follow-up Studies of Five Cataclysmic Variable Candidates Discovered by LAMOST [PDF]
Astronomical Journal, 2020 We report follow-up observations of five cataclysmic variable candidates from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) published by Hou et al.
J. Thorstensen
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White Dwarf Photospheric Abundances in Cataclysmic Variables. IV. Deriving the [N/C] Ratio
The Astrophysical Journal, 2023 We present results from our ongoing far-ultraviolet archival analysis of cataclysmic variable white dwarf (WD) abundances for six more systems: four SU UMa dwarf novae (BW Scl, SW UMa, BC UMa, and VW Hyi) together with the dwarf nova RX And, and the ...
Patrick Godon, Edward M. Sion
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