J/AJ/134/566 Leo II stellar kinematics (Koch+, 2007)
Stellar kinematics in the remote Leo II dwarf spheroidal Galaxy.
Another brick in the wall.
Koch A., Kleyna J.T., Wilkinson M.I., Grebel E.K., Gilmore G.F.,
Evans N.W., Wyse R.F.G., Harbeck D.R.
<Astron. J., 134, 566-578 (2007)>
=2007AJ....134..566K 2007AJ....134..566K
ADC_Keywords: Galaxies, nearby ; Velocity dispersion ; Abundances, [Fe/H]
Keywords: galaxies: dwarf - galaxies: individual (Leo II) -
galaxies: kinematics and dynamics - galaxies: stellar content -
galaxies: structure - Local Group
Abstract:
We present the projected velocity dispersion profile for the remote
(d=233kpc) Galactic dwarf spheroidal (dSph) galaxy Leo II, based on
171 discrete stellar radial velocities that were obtained from
medium-resolution spectroscopy using the FLAMES/GIRAFFE spectrograph
at the European Southern Observatory, Chile.
Description:
In the framework of the ESO Large Program 171.B-0520(A) (principal
investigator: G.F. Gilmore), which aims to elucidate the kinematic
and chemical characteristics of Galactic dSphs, five fields in Leo II
were observed using the FLAMES multiobject facility at ESO's Very
Large Telescope.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 60 200 Measured properties of radial velocity members
in Leo II
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See also:
J/AJ/133/270 : Metallicities and ages in Leo II dSph (Koch+, 2007)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Name Star identification (TNNN or VNN) (1)
7- 8 I2 h RAh Hour of Right Ascension (J2000)
10- 11 I2 min RAm Minute of Right Ascension (J2000)
13- 16 F4.1 s RAs Second of Right Ascension (J2000)
17 A1 --- DE- Declination sign
18- 19 I2 deg DEd Degree of Declination (J2000)
21- 22 I2 arcmin DEm Arcminute of Declination (J2000)
24- 27 F4.1 arcsec DEs Arcsecond of Declination (J2000)
29- 33 F5.2 arcmin r Distance from central core
35- 41 F7.2 km/s RV Radial velocity
43- 48 F6.2 km/s e_RV The 1σ error in RV
50- 54 F5.2 [Sun] [Fe/H] ? Metallicity (2)
56- 60 F5.2 [Sun] e_[Fe/H] ? The 1σ error in [Fe/H]
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Note (1): Acronyms are:
TNNN = [KGK2007] T NNN in Simbad
VNN = [VMO95] Giant NNN in Simbad.
Note (2): On the scale of Carretta & Gratton (1997, Cat. J/A+AS/121/95).
The metallicities are those derived in Paper I (Cat. J/AJ/133/270).
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 07-Sep-2009