Physical Orbit for Lam Vir and Testing of Stellar Evolution Models

Details Physical Orbit for Lam Vir and Testing of Stellar Evolution Models Physical Orbit for Lam Vir and Testing of Stellar Evolution Models

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.1103z&link_type=abstract

American Astronomical Society Meeting 207, #11.03; Bulletin of the American Astronomical Society, Vol. 37, p.1168

Other

Scientific paper

Lambda Virginis is a well-known double-lined spectroscopic Am binary with the interesting property that both stars are very similar in abundance but one is sharp-lined and the other is broad-lined. The differing rotation rates and the unusual metallic-lined nature of this system presents a unique opportunity to test stellar evolution models. In this poster, we present high resolution observations of Lam Vir, taken with the Infrared-Optical Telescopes Array (IOTA) between 2003 and 2005. By combining our interferometric data with double-lined radial velocity data, we determined for the first time the physical orbit of Lam Vir, as well as the orbital parallax of the system. In addition, the masses of the two components are determined with 1% and 1.5% errors respectively. Our preliminary result from comparison with stellar evolution models suggests a discrepancy between Lam Vir and standard models.

Affiliated with

Also associated with

No associations

Rating

Physical Orbit for Lam Vir and Testing of Stellar Evolution Models 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 Physical Orbit for Lam Vir and Testing of Stellar Evolution Models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical Orbit for Lam Vir and Testing of Stellar Evolution Models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1277592