Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aj....110..776w&link_type=abstract
Astronomical Journal v.110, p.776
Astronomy and Astrophysics
Astronomy
47
Stars: Pre-Main Sequence, Binaries: Close
Scientific paper
A series of spectra of V773 Tau obtained during a seven night observing run at Kitt Peak National Observatory (KPNO) in 1993 December revealed a double-lined structure. A period of several weeks is indicated by those spectra, which are best fit by a K2 V plus KS V model. Further observations in 1994 March at Penn State's Black Moshannon Observatory (BMO), 1994 December and 1995 January at KPNO, and three archival KPNO spectra from 1988 January and 1992 November constrain the period to be 51.075±0.018 days. The orbit of V773 Tau is eccentric and is seen at moderately high inclination, but probably not high enough for eclipses to occur. RR diagram placement and recent calculations of pre-main-sequence evolution suggest a mass ratio of about 1.78. While highly uncertain, this is higher than the dynamical mass ratio q=1.32±0.06. It is suggested that VLBI structures previously reported may simply be emission from both stars and possible RS CVn-like interaction, rather than huge loop structures.
No associations
LandOfFree
Discovery of a Pre-Main-Sequence Spectrscopic Binary: V773 Tauri 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 Discovery of a Pre-Main-Sequence Spectrscopic Binary: V773 Tauri, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discovery of a Pre-Main-Sequence Spectrscopic Binary: V773 Tauri will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1267912