2007A&A...468..637C


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.16CEST07:54:19

2007A&A...468..637C - Astronomy and Astrophysics, volume 468, 637-642 (2007/6-3)

Pulsational frequencies of the eclipsing δ Scuti star HD 172189. Results of the STEPHI XIII campaign.

COSTA J.E.S., MICHEL E., PENA J., CREEVEY O., LI Z.P., CHEVRETON M., BELMONTE J.A., ALVAREZ M., FOX MACHADO L., PARRAO L., PEREZ HERNANDEZ F., FERNANDEZ A., FREMY J.-R., PAU S. and ALONSO R.

Abstract (from CDS):

The eclipsing δ Scuti star HD 172189 is a probable member of the open cluster IC 4756 and a promising candidate target for the CoRoT mission. The detection of pulsation modes is the first step in the asteroseismological study of the star. Further, the calculation of the orbital parameters of the binary system allows us to make a dynamical determination of the mass of the star, which works as an important constraint to test and calibrate the asteroseismological models. We performed a detailed frequency analysis of 210 hours of photometric data of HD 172189 obtained from the STEPHI XIII campaign. We have identified six pulsation frequencies with a confidence level of 99% and a seventh with a 65% confidence level of 65%, in the range between 100-300µHz. In addiction, three eclipses were observed during the campaign, allowing us to improve the determination of the orbital period of the system.

Abstract Copyright:

Journal keyword(s): stars: oscillations - stars: variables: δ Sct - stars: binaries: eclipsing - stars: individual: HD 172189

VizieR on-line data: <Available at CDS (J/A+A/468/637): table1.dat spm.dat zn.dat xl.dat>

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 V* AB Cas Al* 02 37 31.5113123367 +71 18 16.273650984   10.59 10.32     A3 143 0
2 V* RZ Cas Al* 02 48 55.5096536172 +69 38 03.441544807   6.40 6.26     A3V 436 0
3 IC 4756 OpC 18 38 31.2 +05 29 24           ~ 193 0
4 HD 172189 Al* 18 38 37.5491896643 +05 27 55.406258343 8.98 9.09 8.73     A6 33 0
5 IC 4756 115 * 18 39 00.5939658882 +05 29 13.176331440   10.75 10.40     G0 4 0
6 HD 172248 * 18 39 03.4707910392 +05 27 31.158437013 8.55 9.04 8.97     ~ 17 0
7 BD+05 3889 * 18 39 30.6955061729 +05 29 06.072290388 9.76 9.95 9.54     A3: 9 0

    Equat.    Gal    SGal    Ecl

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2019.10.16-07:54:19

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