SW Lacertae - A quadruple system

Details SW Lacertae - A quadruple system SW Lacertae - A quadruple system

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981basi....9...31p&link_type=abstract

Astronomical Society of India, Bulletin, vol. 9, 1981, p. 31-39.

Astronomy and Astrophysics

Astronomy

16

Astrometry, Eclipsing Binary Stars, Orbits, Stellar Motions, Electrophotometry, Stellar Mass

Scientific paper

Published photoelectric minima times for the W UMa-type eclipsing binary SW Lac from about 1952-1978 are subjected to period analysis. Neither the mass-exchange hypothesis of Lang and Vetesnik (1966) nor the apsidal-line-rotation hypothesis of Woodward (1956) is confirmed. The changes observed in the period of SW Lac are explained on the basis of a triple system arrayed around a fourth body. The orbital periods of the third and fourth bodies are computed as 19.67 and 70.25 years, respectively. The low masses estimated for these bodies (around 1 solar mass, depending on the angle of inclination) imply that they may be low-luminosity white dwarfs.

Affiliated with

Also associated with

No associations

Rating

SW Lacertae - A quadruple system 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 SW Lacertae - A quadruple system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SW Lacertae - A quadruple system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1790316