Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...195.7616v&link_type=abstract
American Astronomical Society, 195th AAS Meeting, #76.16; Bulletin of the American Astronomical Society, Vol. 31, p.1485
Astronomy and Astrophysics
Astronomy
1
Scientific paper
Simultaneous Hα spectroscopy and CCD photometry in BVRI are used to model variable line emission in the eclipsing binary V471 Tau, which consists of a G2 dwarf and a hot white dwarf in a 0.5 day orbit. We modeled the phase dependent Hα emission as chromospheric fluorescence on the red star. The model allows for combined absorption and emission lines, with the emission lines arising from localized chromospheric regions of the G2 star. Orbital and rotational effects cause the composite profiles to vary with time. The model is an extension of the general binary star light curve model by Wilson and Devinney (1971, ApJ, 166, 605) and Wilson (1979, ApJ, 234, 1054; 1990, ApJ, 356, 613). The photometry is used to identify any other effects caused by the intrinsic activity of the cool star. The observations were part of a 12 night campaign on several chromospherically active binaries with the SARA 0.9m and Coudé Feed telescopes at Kitt Peak National Observatory. We would like to thank the Southeastern Association for Research in Astronomy for their support and use of the SARA telescope and KPNO for funding the observer at the Coudé Feed.
Vaccaro Todd Russell
Wilson Robert E.
No associations
LandOfFree
Simultaneous Photometry and Spectroscopy of V471 Tau 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 Simultaneous Photometry and Spectroscopy of V471 Tau, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simultaneous Photometry and Spectroscopy of V471 Tau will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1743651