2004A&A...428..587K


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST23:15:21

2004A&A...428..587K - Astronomy and Astrophysics, volume 428, 587-593 (2004/12-3)

Cepheid distances from infrared long-baseline interferometry. III. Calibration of the surface brightness-color relations.

KERVELLA P., BERSIER D., MOURARD D., NARDETTO N., FOUQUE P. and COUDE DU FORESTO V.

Abstract (from CDS):

The recent VINCI/VLTI observations presented in Paper I (Kervella et al., 2004A&A...416..941K) have nearly doubled the total number of available angular diameter measurements of Cepheids. Taking advantage of the significantly larger color range covered by these observations, we derive in the present paper high precision calibrations of the surface brightness-color relations using exclusively Cepheid observations. These empirical laws make it possible to determine the distance to Cepheids through a Baade-Wesselink type technique. The least dispersed relations are based on visible-infrared colors, for instance FV(V-K)=-0.1336±0.0008(V-K)+3.9530±0.0006. The convergence of the Cepheid (this work) and dwarf star (Kervella et al. 2004A&A...426..297K) visible-infrared surface brightness-color relations is strikingly good. The astrophysical dispersion of these relations appears to be very small, and below the present detection sensitivity.

Abstract Copyright:

Journal keyword(s): stars: variables: Cepheids - cosmology: distance scale - stars: oscillations - techniques: interferometric

VizieR on-line data: <Available at CDS (J/A+A/428/587): stars.dat table3.dat>

Simbad objects: 11

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Number of rows : 11

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9446 1
2 * alf UMi cC* 02 31 49.09456 +89 15 50.7923 3.00 2.62 2.02 1.53 1.22 F8Ib 609 2
3 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14832 1
4 * bet Dor cC* 05 33 37.5125319201 -62 29 23.323100433 5.13 4.58 3.76 3.55 3.12 F8/G0Ib 345 0
5 * zet Gem cC* 07 04 06.5307903 +20 34 13.073871 5.20 4.58 3.79   3.082 G1Ib 529 0
6 * l Car cC* 09 45 14.8112246 -62 30 28.451894   4.33 3.40     G5Iab/b 286 1
7 V* X Sgr cC* 17 47 33.6241002643 -27 49 50.848981593 5.84 5.34 4.54 6.03 3.661 F7II 306 0
8 V* Y Oph cC* 17 52 38.7021149511 -06 08 36.875163136 8.62 7.61 6.21     G3Ia 338 0
9 * gam01 Sgr cC* 18 05 01.2265190155 -29 34 48.303215344 5.99 5.47 4.69   3.869 G0Ib/II 324 0
10 * eta Aql cC* 19 52 28.3677478 +01 00 20.369619 5.12 4.61 3.80   3.030 F6Iab+B9.8V 632 0
11 * del Cep cC* 22 29 10.2650184 +58 24 54.713856 4.71 4.35 3.75   3.219 F5Iab:+B7-8 676 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-23:15:21

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