| Issue |
Astron. Astrophys. Suppl. Ser.
Volume 138, Number 1, July 1999
|
|
|---|---|---|
| Page(s) | 11 - 18 | |
| DOI | https://doi.org/10.1051/aas:1999264 | |
| Published online | 15 July 1999 | |
Determination of physical parameters of five large amplitude δ Scuti stars
Instituto de Astronomía, UNAM, Mexico Apartado Postal 70-264, D.F., Mexico
Send offprint request to: J.H. Peña
Received:
30
December
1997
Accepted:
1
March
1999
photometry of the large amplitude δ Scuti stars BP
Peg, DY Peg, DY Her, CY Aqr and YZ Boo is presented. Since the data
were obtained almost simultaneously in all filters, meaningful
physical parameters have been derived for each star along their
pulsation cycles using the calibrations from [Nissen (1988)] for A and F
stars to determine the reddening and derive the unreddened photometric
values. The utilization of the theoretical grids of [Relyea & Kurucz
(1978)] has allowed temperature and gravity values to be determined. A
comparison with previously reported values is presented.
Key words: stars: fundamental parameters / δ Sct
© European Southern Observatory (ESO), 1999