Physics – Optics
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...358..610h&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 358, Aug. 1, 1990, p. 610-616.
Physics
Optics
16
Balmer Series, Binary Stars, Emission Spectra, Stellar Activity, Stellar Systems, Ccd Star Tracker, Computer Programs, Fiber Optics, Spectrograms
Scientific paper
The faint RS CVn system SS Bootis was observed over two seasons, and the most prominent surface activity indicators in this spectroscopically understudied object were examined. The first two Balmer lines are consistently strong in emission, as are the Ca II infrared triplet and Ca II H line; there is no significant modulation with phase in any of these lines. No excess emission is evident in He I D3. The ratio of energy emitted in H-alpha to that in H-beta is typically between three and six for the more active subgiant primary, and between two and five for the dwarf secondary. Of special interest is an excess absorption feature in the Balmer lines near primary eclipse in both seasons. The feature lies near the velocity of the secondary, and as there is no similar feature in secondary eclipse, it is suggested that it arises from obscuring material associated with the primary. From the extent of the feature and the system's geometry, limits were placed on the parameters of such material.
Buzasi Derek L.
Hall Jeffrey Clifton
Huenemoerder David P.
Ramsey Lawrence W.
No associations
LandOfFree
Fiber-optic echelle CCD observations of SS Bootis 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 Fiber-optic echelle CCD observations of SS Bootis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber-optic echelle CCD observations of SS Bootis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1125063