1999A&AS..138...11P


Query : 1999A&AS..138...11P

1999A&AS..138...11P - Astron. Astrophys., Suppl. Ser., 138, 11-18 (1999/July-0)

Determination of physical parameters of five large amplitude δ Scuti stars.

PENA J.H., GONZALEZ D. and PENICHE R.

Abstract (from CDS):

uvby-β 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 (1988A&A...199..146N) for A and F stars to determine the reddening and derive the unreddened photometric values. The utilization of the theoretical grids of Relyea & Kurucz (1978ApJS...37...45R) has allowed temperature and gravity values to be determined. A comparison with previously reported values is presented.

Abstract Copyright:

Journal keyword(s): stars: fundamental parameters - δ Sct

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 V* YZ Boo dS* 15 24 06.9993392928 +36 52 00.601700700 10.62 10.54 10.36     F0 125 1
2 V* DY Her dS* 16 31 17.9532980880 +11 59 52.455542712   10.80 10.50     A9.7:III 133 0
3 V* BP Peg RR* 21 33 13.5340951800 +22 44 24.306362268   12.20 12.05     A0 69 0
4 V* CY Aqr SX* 22 37 47.8520659536 +01 32 03.805667412 10.75 10.61 10.44     B8 214 0
5 V* DY Peg SX* 23 08 51.1858042512 +17 12 55.997525808   10.56 10.26     F5 201 1

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