Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...218.9603g&link_type=abstract
American Astronomical Society, AAS Meeting #218, #96.03; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
RS Gruis is a high amplitude delta Scuti type variable star with a mean amplitude of almost a half of a magnitude in V, and a period of almost 3.5 hours. The most recent study of this star due to Derekas et al. (2009) suggests the presence of a low-mass dwarf star companion close to the variable star with a period of 11.5 days. Rodriguez et al (1995) had also shown a decreasing rate of the period of dP/Pdt= -10.6 E-8/y. Using a extended dataset comprising BVIc CCD observations aquired at the Astronomical Observatory of the Instituto Copernico (1000 datapoints), a data set from ASAS (500) and the existing data in the AAVSO International Database (3900), we have performed an extensive periodogram analyses looking for long term variations. As a preliminary result, we have confirmed the period variation rate but we also found an harmonic in good shape with the period suggested for the binary companion.
No associations
LandOfFree
The Pulsational Behaviour of the High Amplitude Delta Scuti Star RS Gruis 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 The Pulsational Behaviour of the High Amplitude Delta Scuti Star RS Gruis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Pulsational Behaviour of the High Amplitude Delta Scuti Star RS Gruis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1735922