The symbiotic star CH CYG - The occasional transition from an unstable to a stable accretion disk

Details The symbiotic star CH CYG - The occasional transition from an unstable to a stable accretion disk The symbiotic star CH CYG - The occasional transition from an unstable to a stable accretion disk

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...119..248d&link_type=abstract

Astronomy and Astrophysics, vol. 119, no. 2, Mar. 1983, p. 248-252.

Astronomy and Astrophysics

Astrophysics

7

Accretion Disks, Binary Stars, Periodic Variations, Stellar Mass Accretion, Stellar Mass Ejection, Stellar Models, Light Curve, Main Sequence Stars, Mass Transfer, Orbital Elements, Roche Limit, Stellar Luminosity, Stellar Spectrophotometry, Stellar Temperature

Scientific paper

A binary model with a subcritical accretion disk is proposed for CH Cyg, based on the UBV data of the last one and a half decades. The model allows for a consistent interpretation of the phases of high, nearly constant luminosity as well as for periods of quasi-periodic variations. The model assumes that CH Cyg is a binary system which consists of an M6 star of a few solar masses and an effective temperature of 2800 K (Deutsch et al., 1974) which fills its Roche lobe, as well as a one solar mass main sequence star with a thin alpha accretion disk around it which is fed from the red star by Roche lobe overflow via the inner Lagrangian point. The model requires an orbital period of about one month, agreeing with the result of Deutsch. The model is compared with observations for a disk with and without a convective region. The system parameters and color indices are discussed, and the visual light-curve is interpreted.

Affiliated with

Also associated with

No associations

Rating

The symbiotic star CH CYG - The occasional transition from an unstable to a stable accretion disk 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 The symbiotic star CH CYG - The occasional transition from an unstable to a stable accretion disk, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The symbiotic star CH CYG - The occasional transition from an unstable to a stable accretion disk will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1464822