Results 1 to 10 of about 493,128 (267)

When does an old nova become a dwarf nova? Kinematics and age of the nova shell of the dwarf nova AT Cancri [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
8 pages, 8 ...
Shara, Michael M.   +4 more
openaire   +5 more sources

The Temperatures of White Dwarfs in Dwarf Novae [PDF]

open access: yesInternational Astronomical Union Colloquium, 1996
AbstractWe attempt to measure the temperature of all the quiescent dwarf novae that have been observed with IUE, by fitting the observed flux distribution of white dwarfs (WDs) with known temperatures. This approach gives results similar to those using much more sophisticated modelling, but allows us to investigate the relationship with system ...
B. J. M. Hassall, C. La Dous
openaire   +1 more source

White Dwarf Photospheric Abundances in Cataclysmic Variables. IV. Deriving the [N/C] Ratio

open access: yesThe 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
doaj   +1 more source

Why Do Black--Hole X-ray Binaries Tend to Be Transient? [PDF]

open access: yes, 1999
Black hole X-ray binaries are transient probably because their discs are subject to the same thermal-viscous instability which is present in dwarf nova binary systems.
Lasota, Jean-Pierre
core   +3 more sources

WZ Sge-type dwarf novae [PDF]

open access: yesPublications of the Astronomical Society of Japan, 2015
AbstractWe have summarized the current understanding and recently obtained findings about WZ Sge-type dwarf novae. We also reviewed the historical development of the understanding of these objects, provided the modern criteria, and reviewed the past research in relation to superhumps, early superhumps, and the outburst mechanism. We regard the presence
openaire   +2 more sources

White Dwarfs in Cataclysmic Variables: An Update

open access: yesActa Polytechnica CTU Proceedings, 2015
In this review, we summarize what is currently known about the surface temperatures of accreting white dwarfs in nonmagnetic and magnetic cataclysmic variables (CVs) based upon synthetic spectral analyses of far ultraviolet data.
E. M. Sion, P. Godon
doaj   +1 more source

Life after eruption, II : the eclipsing old nova V728 Scorpii [PDF]

open access: yes, 2013
The old nova V728 Sco has been recently recovered via photometric and spectroscopic observations, 150 yr after the nova eruption. The spectral properties pointed to a high-inclination system with a comparatively low mass-transfer rate.
Ederoclite, Alessandro   +4 more
core   +2 more sources

Outbursts of dwarf novae [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 1984
A review is given of the observational facts related to the outbursts of dwarf novae and of relevant aspects of the theory of accretion disks. It now appears possible to explain the outbursts of dwarf novae in terms of a nonstationary accretion behavior. Between the outbursts, the material supplied by the secondary component is stored in the relatively
openaire   +1 more source

Theory of Dwarf Novae [PDF]

open access: yesSymposium - International Astronomical Union, 1976
Recent work on the physical processes resulting from mass transfer between the red and blue components of dwarf nova binaries is reviewed. The optical behaviour of the blue component's accretion disc suggests that it may be the infall, accretion energy which is being liberated during outbursts.
openaire   +1 more source

NSV 13983: A New Dwarf Nova in the Period Gap

open access: yes, 2008
Aims. NSV 13983 is catalogued as a dwarf nova based on a reported outburst from 2005. The system has not yet been studied spectroscopically. We attempt to confirm its nature as a dwarf nova and determine its orbital period. Methods.
Contreras, C., Tappert, C.
core   +1 more source

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