Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985mnras.216..335h&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 216, Sept. 15, 1985, p. 335-352. Research supported by
Astronomy and Astrophysics
Astronomy
38
Accretion Disks, Dwarf Novae, Stellar Atmospheres, Stellar Spectrophotometry, Ultraviolet Spectra, Light Curve, Mass Transfer, Stellar Models
Scientific paper
Simultaneous UV and optical spectrophotometry were obtained during several stages of a superoutburst of EK TrA. The observed spectra are compared with steady disc models, built both of blackbodies or Kurucz stellar atmospheres and with optically thin contributions. Atmosphere models predict much lower mass transfer rates than blackbody models. Assuming a quasi-steady disc, the size of the optically thick portion decreases between the peak and decline of the superoutburst. The existence of the optical superhump is confirmed and its large amplitude favors a disc hotspot explanation. The line spectra change from absorption to emission during decline, and the C IV (1550) line shows a P Cygni feature of variable profile.
No associations
LandOfFree
A superoutburst of the dwarf nova EK Trianguli Australis 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 A superoutburst of the dwarf nova EK Trianguli Australis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A superoutburst of the dwarf nova EK Trianguli Australis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-801893