Absolute dimensions of eclipsing binaries. XIX: BW Aquarii - A late F-type indicator of overshooting

Details Absolute dimensions of eclipsing binaries. XIX: BW Aquarii - A late F-type indicator of overshooting Absolute dimensions of eclipsing binaries. XIX: BW Aquarii - A late F-type indicator of overshooting

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...246..397c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 246, no. 2, June 1991, p. 397-406. Research supported by SNFO.

Astronomy and Astrophysics

Astrophysics

29

Eclipsing Binary Stars, Light Curve, Stellar Evolution, Stellar Rotation, Stellar Structure, Astronomical Photometry, Ephemeris Time, Main Sequence Stars, Orbital Elements, Stellar Models

Scientific paper

Results of an analysis of new complete uvby light curves reported by Gronbech et al. (1987) combined with results from the radial velocity study of Imbert (1987) are used to determine accurate absolute dimensions of the components of the southern detached late F-type eclipsing binary BW Aqr. The absolute dimensions of the A component are found to be (+ or - 2 percent) M = 1.39 solar mass, R = 1.78 solar radius; the dimensions of the more massive and cooler B component are M = 1.49 solar mass, R = 2.05 solar radii. These component masses place the BW Aqr in the mass range where stars begin to develop convective cores. It is found that standard models fit the less massive BW Aqr A well, but do not reproduce the observed properties of both components at identical ages. On the other hand, models including rate overshooting provide a reasonably satisfactory fit to both BW Aqr components at a common age of about 2.5 Gyr.

Affiliated with

Also associated with

No associations

Rating

Absolute dimensions of eclipsing binaries. XIX: BW Aquarii - A late F-type indicator of overshooting 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 Absolute dimensions of eclipsing binaries. XIX: BW Aquarii - A late F-type indicator of overshooting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absolute dimensions of eclipsing binaries. XIX: BW Aquarii - A late F-type indicator of overshooting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1277735