Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...301..634c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 301, Feb. 15, 1986, p. 634-640.
Astronomy and Astrophysics
Astronomy
82
Accretion Disks, Dwarf Novae, Stellar Mass Accretion, Stellar Radiation, Ultraviolet Astronomy, Bursts, Density Distribution, Light Curve, Thermal Stability
Scientific paper
Far-ultraviolet observations of a burst of SS Cyg obtained with the Voyager spacecraft are presented along with optical observations. Representative V band and far-UV light curves are computed based on a thermal instability model, and the dependence of the far-UV delay and the shape of the outburst on the location in the disk where the outburst starts is examined. The results show that burst initiated at large radii produce asymmetric light curves for which the far-UV flux lags the optical flux by about half a day, as observed. For bursts starting at smaller radii, the delay is smaller and the outburst is more rounded and symmetric. For both burst types, the delay with respect to the optical is longer for larger accretion disks and at shorter wavelengths. The physical processes that will promote burst initiation in the outer disk are discussed, emphasizing that this can occur in principle with no modulation of the mass transfer rate from the companion.
Cannizzo John Kendall
Polidan Ronald S.
Wheeler Justin C.
No associations
LandOfFree
Dwarf nova burst asymmetry and the physics of accretion disks does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dwarf nova burst asymmetry and the physics of accretion disks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dwarf nova burst asymmetry and the physics of accretion disks will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1675024