Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976aj.....81..250j&link_type=abstract
Astronomical Journal, vol. 81, Apr. 1976, p. 250-256.
Astronomy and Astrophysics
Astronomy
38
Eclipsing Binary Stars, Light Curve, Mass Transfer, Radial Velocity, Stellar Spectrophotometry, Electrophotometry, K Stars, Stellar Evolution, Stellar Luminosity, Stellar Mass Ejection
Scientific paper
Results are reported for photoelectric photometry and radial-velocity determinations of SZ Psc, a double-line spectroscopic binary in which the K1 subgiant is more massive than the main-sequence companion. The period is found to undergo a linear rate of decrease; an expression is derived which provides a good representation of observed minima between 1927 and 1974. The photoelectric observations are plotted as a light curve, and reasonably accurate values are determined for the radii, masses, and absolute bolometric luminosities of both stars. It is shown that the K star nearly fills its Roche lobe and that mass transfer is most likely taking place. A mass-transfer rate of about one-millionth of a solar mass per year is estimated, indicating that the initial phase of mass transfer will be completed on a time scale of the order of a million years. It is concluded that SZ Psc appears to be a close binary system that has just entered its first phase of interactive eovlution.
Bakos Gustav A.
Fernie Donald J.
Heard John F.
Jakate S.
No associations
LandOfFree
Eclipsing binary system SZ PISCIUM 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 Eclipsing binary system SZ PISCIUM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Eclipsing binary system SZ PISCIUM will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1611907