SIMULTANEOUS UVBY-BETA-PHOTOMETRY OF GP ANDROMEDAE

Authors
RODRIGUEZ E ROLLAND A DECOCA PL
Citation
E. Rodriguez et al., SIMULTANEOUS UVBY-BETA-PHOTOMETRY OF GP ANDROMEDAE, Astronomy & Astrophysics. Supplement series, 101(2), 1993, pp. 421-429
Citations number
38
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy & Astrophysics. Supplement series → ACNP
ISSN journal
03650138
Volume
101
Issue
2
Year of publication
1993
Pages
421 - 429
Database
ISI
SICI code
0365-0138(1993)101:2<421:SUOGA>2.0.ZU;2-0
Abstract
Simultaneous uvbybeta photometric observations of the high amplitude d elta Sct type star GP And are presented. Ten new times of light maxima have been obtained. Using the classical O-C method, it is found that the pulsation of this star can be well described by means of a quadrat ic ephemeris with the period increasing at a rate of dP/Pdt = 13.0(+/- 2.8) 10(-8) y-1 over the last nineteen years. Intrinsic b - y, m1 and c1 values are derived and the physical parameters of this star are de termined.