Access to Astronomical Catalogues

← Click to display the menu
J/ApJ/694/L144      Spectroscopic study of Leo V dSph        (Walker+, 2009)

Leo V: spectroscopy of a distant and disturbed satellite. Walker M.G., Belokurov V., Evans N.W., Irwin M.J., Mateo M., Olszewski E.W., Gilmore G. <Astrophys. J., 694, L144-L147 (2009)> =2009ApJ...694L.144W
ADC_Keywords: Galaxies, nearby ; Photometry, SDSS ; Radial velocities Keywords: dark matter - galaxies: dwarf - galaxies: kinematics and dynamics - Local Group Abstract: We present a spectroscopic study of Leo V, a recently discovered satellite of the Milky Way (MW). From stellar spectra obtained with the MMT/Hectochelle spectrograph we identify seven likely members of Leo V. Five cluster near the Leo V center (R<3') and have a velocity dispersion of 2.4+2.41.4km/s. The other two likely members lie near each other but far from the center (R∼13'∼700pc) and inflate the global velocity dispersion to 3.7+2.31.4km/s. Description: On 2008 May 28 and 30 we obtained medium-resolution spectra of 158 Leo V targets using the Hectochelle spectrograph at the MMT Observatory. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 82 169 Hectochelle Spectroscopy of Leo V
See also: J/MNRAS/397/1748 : Spectroscopic study of Segue 2 (Belokurov+, 2009) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [L5-] 4- 6 I03 --- Seq [1,158] Target identification 8- 9 I2 h RAh Hour of Right Ascension (J2000) 11- 12 I2 min RAm Minute of Right Ascension (J2000) 14- 18 F5.2 s RAs Second of Right Ascension (J2000) 20 A1 --- DE- Sign of the Declination (J2000) 21- 22 I2 deg DEd Degree of Declination (J2000) 24- 25 I2 arcmin DEm Arcminute of Declination (J2000) 27- 30 F4.1 arcsec DEs Arcsecond of Declination (J2000) 32- 35 F4.1 arcmin R Angular radius from Leo V center 37- 41 F5.2 mag rmag The r band magnitude 43- 46 F4.2 mag g-r The (g-r) color index 48- 53 F6.1 km/s HV Heliocentric velocity 55- 58 F4.1 km/s e_HV Uncertainty in HV 60- 64 F5.2 0.1nm sigMg ? Composite magnesium index (1) 66- 70 F5.2 0.1nm e_sigMg ? Uncertainty in sigMg (1) 72- 76 F5.3 --- Mpr Probability star belongs to population 78- 82 F5.3 --- e_Mpr Mean error in Mpr
Note (1): Weighted sum of pseudo-equivalent widths for each individual line of the Mg-I/Mg-b triplet (see Walker et al., 2007ApJS..171..389W).
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 16-Nov-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service