2001A&A...376..489R


Query : 2001A&A...376..489R

2001A&A...376..489R - Astronomy and Astrophysics, volume 376, 489-496 (2001/9-3)

Simultaneous uvby photometry of the δ Sct star HD 129231.

RODRIGUEZ E., LOPEZ-GONZALEZ M.J., ROLLAND A., COSTA V. and GONZALEZ-BEDOLLA S.F.

Abstract (from CDS):

We present the results of a three-year Stroemgren uvby photometric study of the recently discovered multiperiodic low amplitude δ Sct-type pulsator HD 129231. Some additional Hβ-Crawford measurements were also collected. Multiperiodicity is needed to describe the pulsational behaviour of this variable during each of the observing runs. A set of five significant frequencies has been found as the best fitting for the 1997 dataset, but only the two main ones result as significant during the 1995 and 1996 observing runs. Amplitude variations from season to season are also found for the main frequency f1. Nonradial pulsation is suggested for some of the modes. Using the derived uvbyβ indices, the most relevant physical parameters of HD 129231 are also determined placing this object as a hot Population I δ Sct star evolving on its main sequence stage.

Abstract Copyright:

Journal keyword(s): stars: variables: δ Scu - stars: individual: HD 129231 - stars: oscillations - techniques: photometric

Simbad objects: 8

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Number of rows : 8
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 * tet Tuc dS* 00 33 23.3592564808 -71 15 58.480439386   6.359 6.109     A7IV 86 0
2 V* AD CMi dS* 07 52 47.1851318636 +01 35 50.475222928   9.66 9.38     F0IV/V 137 0
3 V* IP Vir dS* 14 40 06.9978951626 +00 01 45.110901862 12.016 11.931 11.599 11.403 11.209 A4mF3 42 0
4 V* OV Vir dS* 14 41 30.2182551197 -02 02 27.788551648   7.96 7.82     A2IV 19 1
5 HD 129584 * 14 43 13.0736135344 +01 49 28.975961778   7.34 7.33     A0V 18 0
6 HD 129727 * 14 44 14.0826735292 -00 37 06.685403940 9.803 9.855 9.477 9.244 9.009 F0V 21 0
7 HD 130256 ** 14 47 05.35278 +00 58 15.1978           B9.5V 18 0
8 V* KL Lib dS* 14 48 34.8747866721 -01 07 03.113577834   9.09 8.76     A9V 12 0

    Equat.    Gal    SGal    Ecl

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2021.07.25-17:18:37

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