On the nature of the central object in Z Cha

Details On the nature of the central object in Z Cha On the nature of the central object in Z Cha

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.228..797w&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 228, Oct. 1, 1987, p. 797-803.

Astronomy and Astrophysics

Astronomy

7

Accretion Disks, Dwarf Novae, Stellar Models, White Dwarf Stars, Boundary Layers, Eclipses, Optical Thickness

Scientific paper

Observational evidence, in quiescence and outburst, regarding the nature of the object at the centre of the accretion disc in the eclipsing dwarf nova Z Cha is examined. At quiescence the most likely central object is a white dwarf, luminous over most of its surface, unocculted by the accretion disc, with no boundary layer contributing significantly to the light at visual wavelengths. This result is in disagreement with the results of Smak (1986), who, in order to model the observed behaviour of the central object through an outburst, proposed that in quiescence it is just a narrow equatorial boundary layer. The author shows, however, that the behaviour during outburst is consistent with their central object if, during the outburst, an extended toroidal boundary layer develops and the inner regions of the accretion disc are optically thick.

Affiliated with

Also associated with

No associations

Rating

On the nature of the central object in Z Cha 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 On the nature of the central object in Z Cha, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the nature of the central object in Z Cha will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1776103