Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aj....134.2079f&link_type=abstract
The Astronomical Journal, Volume 134, Issue 5, pp. 2079-2085 (2007).
Astronomy and Astrophysics
Astronomy
Binaries: Spectroscopic, Stars: Late-Type
Scientific paper
We have used spectroscopic observations to determine the orbital elements and some basic properties of the double-lined spectroscopic binary HD 19485 = WZ Ari. The orbital period is 6.247854 days, and the orbit is circular. The G5 V primary and K0 V secondary are chromospherically active. One star or possibly both are synchronously rotating. Based on the Hipparcos parallax and the magnitude differences derived in this work, we find that both components are approximately 1 mag above the zero-age main sequence, a result that is inconsistent with the assumption that the components are coeval. We discuss some possible solutions to this anomaly, but none of them satisfactorily resolve the problem.
Partially based on data obtained at the David Dunlap Observatory, University of Toronto.
Bolton Charles T.
Fekel Francis C.
No associations
LandOfFree
Chromospherically Active Stars. XXVI. The Double-Lined Late-Type Binary HD 19485 = WZ Arietis 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 Chromospherically Active Stars. XXVI. The Double-Lined Late-Type Binary HD 19485 = WZ Arietis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chromospherically Active Stars. XXVI. The Double-Lined Late-Type Binary HD 19485 = WZ Arietis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1696620