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J/A+A/448/155 Radial velocities of Leo I globular clusters (Bergond+, 2006)
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Beginning of ReadMe :J/A+A/448/155 Radial velocities of Leo I globular clusters (Bergond+, 2006)
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Wide-field kinematics of globular clusters in the Leo I group.
Bergond G., Zepf S.E., Romanowsky A.J., Sharples R.M., Rhode K.L.
<Astron. Astrophys., 448, 155-164 (2006)>
=2006A&A...448..155B
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ADC_Keywords: Galaxies, nearby ; Clusters, globular ; Velocity dispersion ;
Radial velocities ; Spectroscopy
Keywords: galaxies: elliptical and lenticular, cD - galaxies: halos -
galaxies: kinematics and dynamics - galaxies: star clusters
Abstract:
VLT/FLAMES radial velocities for 50 Globular Clusters (GCs), 37 field
stars and 21 unclassified objects around the Leo I group galaxies
NGC 3379 and NGC 3384 are presented. Object Id and BVR photometry are
from Rhode & Zepf (2004AJ....127..302R). Positions (J2000.0) should be
accurate to 0"2 or better w.r.t. the GSC2.1 catalogue. Heliocentric
radial velocities and their errors were estimated by fitting the peak
(see the width, heigh, and Tonry & Davies (1979AJ.....84.1511T)
coefficient) of the cross-correlation function (CCF) with the IRAF/RV
package task FXCOR, using simulatenous and ELODIE library stellar
templates. Objects have been assigned three quality class, class A
being the most secure velocity determination, and class C the least
secure; the latter objects require confirmation, and such GCs were not
considered for the dynamical analysis presented in the paper.
Description:
The FLAMES observations were carried out in service mode on VLT/UT2
(Kueyen), with the GIRAFFE/MEDUSA configuration. Our observing
programme consisted of five 2595-s exposures taken on separate nights,
in May-June 2003, under good seeing ( 0.7") conditions.