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


C.D.S. - SIMBAD4 rel 1.7 - 2020.02.17CET01:52:47

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 - 2020
#notes
1 V* YZ Boo dS* 15 24 06.9993379382 +36 52 00.600888929 10.62 10.54 10.36     F0 110 1
2 V* DY Her dS* 16 31 17.9533164900 +11 59 52.454408185   10.80 10.50     A9.7:III 127 0
3 V* BP Peg RR* 21 33 13.5340579722 +22 44 24.304287696   12.20 12.05     A0 61 0
4 V* CY Aqr SX* 22 37 47.8521004343 +01 32 03.801736535 10.75 10.61 10.44     B8 208 0
5 V* DY Peg SX* 23 08 51.1855512550 +17 12 55.998206149   10.56 10.26     F5 191 1

    Equat.    Gal    SGal    Ecl

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2020.02.17-01:52:47

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