2009A&A...506...79G

Query : 2009A&A...506...79G

2009A&A...506...79G - Astronomy and Astrophysics, volume 506, 79-83 (2009/10-4)

Asteroseismic analysis of the CoRoT δ Scuti star HD 174936.

GARCIA-HERNANDEZ A., MOYA A., MICHEL E., GARRIDO R., SUAREZ J.C., RODRIGUEZ E., AMADO P.J., MARTIN-RUIZ S., ROLLAND A., PORETTI E., SAMADI R., BAGLIN A., AUVERGNE M., CATALA C., LEFEVRE L. and BAUDIN F.

Abstract (from CDS):

We present an analysis of the δ-Scuti star HD174936 (ID7613) observed by CoRoT during the first short run SRc01 (27 days). A total number of 422 frequencies were extracted from the light curve using standard prewhitening techniques. This number of frequencies was obtained by considering a spectral significance limit of sig=10 using the software package SigSpec. Our analysis of the oscillation frequency spectrum reveals a spacing periodicity around 52 µHz. Although modes considered here are not in the asymptotic regime, a comparison with stellar models confirms that this signature may stem from a quasi-periodic pattern similar to the so-called large separation in solar-like stars.

Abstract Copyright: ∼

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

VizieR on-line data: <Available at CDS (J/A+A/506/79): table1.dat>

Simbad objects: 3

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Number of rows : 3
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 HD 49434 gD* 06 48 19.0662941232 -01 19 08.124232296   6.015 5.731     F0V+ 91 0
2 HD 50844 dS* 06 54 50.1143010144 -01 04 14.775168468   9.28 9.09     A2II 50 0
3 HD 174936 dS* 18 52 58.8983705784 +02 49 50.853166320   8.79 8.56     A3IV 33 0

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