Results 31 to 40 of about 82,748 (221)

The Kukarkin-Parenago Relation for Dwarf Novae and Novae [PDF]

open access: yesAstrophysics and Space Science, 1987
AbstractThe period-amplitude relation and the period-energy relation for dwarf novae and novae are discussed. The total outbursts energy is shown to be a more suitable characteristic of the outburst than its amplitude.
openaire   +1 more source

AT Cnc: A SECOND DWARF NOVA WITH A CLASSICAL NOVA SHELL [PDF]

open access: yesThe Astrophysical Journal, 2012
We are systematically surveying all known and suspected Z Cam-type dwarf novae for classical nova shells. This survey is motivated by the discovery of the largest known classical nova shell, which surrounds the archetypal dwarf nova Z Camelopardalis.
Shara, Michael M.   +7 more
openaire   +3 more sources

Temperatture esttiimattiion off EXDRA and SSUMI dwarff Nova systtems from spectroscopic data

open access: yesIraqi Journal of Physics, 2019
The seasonal behavior of the light curve for selected star SS UMI and EXDRA during outburst cycle is studied. This behavior describes maximum temperature of outburst in dwarf nova.
Arshed Ali Kadhem
doaj   +1 more source

Dwarf nova outbursts with magnetorotational turbulence [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
The phenomenological Disc Instability Model has been successful in reproducing the observed light curves of dwarf nova outbursts by invoking an enhanced Shakura-Sunyaev $α$ parameter $\sim0.1-0.2$ in outburst compared to a low value $\sim0.01$ in quiescence.
Coleman, M. S. B.   +4 more
openaire   +3 more sources

Characterization of Dwarf Novae Using SDSS Colors [PDF]

open access: yes, 2012
We have developed a method for estimating the orbital periods of dwarf novae from the Sloan Digital Sky Survey (SDSS) colors in quiescence using an artificial neural network.
Uemura, Makoto   +2 more
core   +1 more source

Barley yellow dwarf epidemiology [PDF]

open access: yes, 2006
Barley yellow dwarf (BYD) disease is induced by viruses that are vectored by aphids. The viruses infect grasses and cause severe damage on oats, barley and wheat worldwide.
Bisnieks, Maris
core   +1 more source

On the nature of dwarf novae

open access: yesThe Astrophysical Journal, 1983
Observational data on mass-transfer rates and radii of disks indicate that the outer parts of disks in novae and nova-like binaries are sufficiently hot for stationary accretion; those in dwarf novae are too cool to avoid an accretion instability, while these in Z Cam systems are the borderline cases.
openaire   +1 more source

THE DWARF NOVA OUTBURSTS OF NOVA HER 1960 (=V446 HER) [PDF]

open access: yesThe Astronomical Journal, 2011
To appear at the Astronomical Journal; 7 pages, 1 table, 11 ...
Honeycutt, R. K.   +2 more
openaire   +2 more sources

X-Ray Observations of Dwarf Novae [PDF]

open access: yes, 1979
The details of a survey of the X-ray properties of ~65 dwarf novae are presented: four objects are discussed in detail and the null results for the remaining stars are summarized.
Cordova, France Anne-Dominic de
core   +1 more source

X-ray variations in the inner accretion flow of dwarf novae

open access: yes, 2021
Aims. We study the inner disk structure of dwarf novae (DNe; i.e., nonmagnetic cataclysmic variables)
BALMAN, Şölen, Revnivtsev, M.
core   +1 more source

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