2002A&A...394...97K


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.26CET17:28:43

2002A&A...394...97K - Astronomy and Astrophysics, volume 394, 97-106 (2002/10-4)

The multimode pulsation of the δ Scuti star V784 Cassiopeae.

KISS L.L., DEREKAS A., ALFARO E.J., BIRO I.B., CSAK B., GARRIDO R., SZATMARY K. and THOMSON J.R.

Abstract (from CDS):

We present an analysis of new Johnson and Stroemgren photometric and medium-resolution spectroscopic observations of the δ Scuti type variable star V784 Cassiopeae. The data were obtained in three consecutive years between 1999 and 2001. The period analysis of the light curve resulted in the detection of four frequencies ranging from 9.15d–1 to 15.90d–1, while there is a suggestion for more, unresolved frequency components, too. The mean Stroemgren indices and Hipparcos parallax were combined to calculate the following physical parameters: <Teff≥7100±100K, logg=3.8±0.1, Mbol=1.50mag±0.15mag. The position of the star in the HR diagram was used to derive evolutionary mass and age yielding to a consistent picture of an evolved δ Scuti star with a mixture of radial plus non-radial modes.

Abstract Copyright:

Journal keyword(s): stars: fundamental parameters - stars: oscillations - δ Sct - stars: individual: V784 Cas

VizieR on-line data: <Available at CDS (J/A+A/394/97): vmag deltav b-v u-b b-y c1mag m1mag>

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 - 2021
#notes
1 V* V784 Cas dS* 02 10 25.5077203996 +59 58 47.285111740   6.977 6.635     kF0hF2mF2(III) 40 0
2 Cl Stock 2 OpC 02 14 43 +59 29.1           ~ 100 0
3 HD 14173 * 02 19 41.5268033400 +60 00 46.995461393   8.16 7.19     G5II 28 0
4 HD 14172 * 02 19 44.4763829278 +60 01 46.375270564   7.152 6.923     A2V 23 0
5 * omi Aql PM* 19 51 01.6437560393 +10 24 56.595177367   5.66   4.8   F8V 429 0

    Equat.    Gal    SGal    Ecl

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2021.02.26-17:28:43

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