Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977mnras.180..657w&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 180, Sept. 1977, p. 657-673.
Astronomy and Astrophysics
Astronomy
49
Novae, Stellar Models, Stellar Spectra, X Ray Stars, Absorption Spectra, Binary Stars, Light Curve, Neutron Stars, Stellar Evolution, Tables (Data), White Dwarf Stars
Scientific paper
Spectroscopic observations of the X-ray nova A0620-00 are reported which cover the interval from September 8, 1975, to May 5, 1976, inclusive. The features seen in the spectrum include emission lines of H-alpha, H-beta, H-gamma, He I, He II, and N III, broad absorption underlying the Balmer emission, and interstellar absorption lines. The H-alpha emission is sometimes double, with variable velocity separation and equivalent widths. The spectrum has some similarity in its later stage to that of a dwarf nova, but at no time so far has it resembled the spectrum of a common nova. The source's distance is either about 1 or 15 kpc; the smaller value is favored. Models of the outburst event in terms of a binary system, involving accretion on to a neutron star or runaway nuclear burning on a white dwarf, are briefly discussed with regard to periodicities, X-ray heating, and evolutionary origin.
Allen David A.
Danziger Ivan John
Fosbury Robert A. E.
Murdin P. G.
Penston Michael V.
No associations
LandOfFree
Spectroscopic observations of the X-ray nova A0620-00 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 Spectroscopic observations of the X-ray nova A0620-00, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopic observations of the X-ray nova A0620-00 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1098693