2005A&A...432..851R


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.24CET02:08:03

2005A&A...432..851R - Astronomy and Astrophysics, volume 432, 851-859 (2005/3-4)

A homogeneous set of globular cluster relative distances and reddenings.

RECIO-BLANCO A., PIOTTO G., DE ANGELI F., CASSISI S., RIELLO M., SALARIS M., PIETRINFERNI A., ZOCCALI M. and APARICIO A.

Abstract (from CDS):

We present distance modulus and reddening determinations for 72 Galactic globular clusters from the homogeneous photometric database of Piotto et al. (2002A&A...391..945P), calibrated to the HST flight F439W and F555W bands. The distances have been determined by comparison with theoretical absolute magnitudes of the ZAHB. For low and intermediate metallicity clusters, we have estimated the apparent Zero Age Horizontal Branch (ZAHB) magnitude from the RR Lyrae level. For metal rich clusters, the ZAHB magnitude was obtained from the fainter envelope of the red HB. Reddenings have been estimated by comparison of the HST colour-magnitude diagrams (CMD) with ground CMDs of template clusters with low reddening. The homogeneity of both the photometric data and the adopted methodological approach allowed us to obtain highly accurate relative cluster distances and reddenings. Our results are also compared with recent compilations in the literature.

Abstract Copyright:

Journal keyword(s): Galaxy: globular clusters: general - stars: horizontal-branch - stars: distances

VizieR on-line data: <*** tables not received at CDS ***>

Simbad objects: 6

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Number of rows : 6

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 NGC 1851 GlC 05 14 06.76 -40 02 47.6   8.80 7.23     ~ 1262 0
2 M 79 GlC 05 24 10.59 -24 31 27.3   9.21 8.16     ~ 727 0
3 M 68 GlC 12 39 27.98 -26 44 38.6   10.26 7.96     ~ 893 0
4 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2290 0
5 M 5 GlC 15 18 33.22 +02 04 51.7   7.34 5.95     ~ 1796 0
6 NGC 6362 GlC 17 31 54.99 -67 02 54.0   9.72 8.86     ~ 499 0

    Equat.    Gal    SGal    Ecl

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2021.01.24-02:08:03

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