Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...338..909a&link_type=abstract
Astronomy and Astrophysics, v.338, p.909-918 (1998)
Astronomy and Astrophysics
Astrophysics
24
Stars: Variables: Delta Scuti, Stars: Oscillations, Open Clusters And Associations: Individual: Praesepe, Methods: Data Analysis
Scientific paper
We discuss observations and seismic analyses for three multi-periodic delta Scuti stars in the Praesepe cluster: BU, BN and BV Cnc. For two stars (BU and BN Cnc) we re-analyse published photoelectric photometry and show that using statistical weights results in a dramatic reduction in the noise level. We detect seven frequencies in BU Cnc and eight in BN Cnc, with three of the latter being previously unknown. We also present new time-series CCD observations of BN and BV Cnc that successfully demonstrate high-precision differential photometry on strongly defocussed images. The observations show that BV Cnc is a multi-periodic variable, with at least four oscillation frequencies. Finally, we compare the observed oscillation frequencies in the three stars with models and derive luminosities, effective temperatures and masses.
Arentoft Torben
Bedding Tim R.
Belmonte Juan Antonio
Frandsen Soeren
Frontó A.
No associations
LandOfFree
Photometry and asteroseismology of delta Scuti stars in Praesepe 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 Photometry and asteroseismology of delta Scuti stars in Praesepe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photometry and asteroseismology of delta Scuti stars in Praesepe will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1718306