1997A&A...317..789M

Query : 1997A&A...317..789M

1997A&A...317..789M - Astronomy and Astrophysics, volume 317789-792 (1997/1-3)

The mean angular diameter of δ Cephei measured by optical long-baseline interferometry.

MOURARD D., BONNEAU D., KOECHLIN L., LABEYRIE A., MORAND F., STEE P., TALLON-BOSC I. and VAKILI F.

Abstract (from CDS):

Long baseline interferometric observations of δ Cep at the "Grand Interferometre a deux Telescopes" give the first measurement of its mean angular diameter. Combined with the mean linear radius deduced from spectroscopic data, the mean angular diameter gives an improved distance determination for δ Cep. Size pulsations are marginally detected and the measured amplitude is consistent with the theoretical predictions.

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Journal keyword(s): stars: Cepheids - stars: individual: δ Cep - techniques: interferometric - stars: fundamental parameters

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 * zet Gem cC* 07 04 06.5312384690 +20 34 13.074474962 5.20 4.58 3.79   3.082 G1Ib 596 0
2 * bet Lyr SB* 18 50 04.7951442356 +33 21 45.600371200 2.85 3.42 3.42 3.31 3.29 B8.5Ib-II 955 0
3 * alf Cep PM* 21 18 34.77233 +62 35 08.0681 2.770 2.680 2.460 2.22 2.11 A8Vn 374 0
4 * del Cep cC* 22 29 10.2626640314 +58 24 54.697613650 4.71 4.35 3.75   3.219 F5Iab:+B7-8 763 0

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