J/MNRAS/388/1185 JHKs photometry of LeoII dSph giants (Gullieuszik+, 2008)
The evolved stars of LeoII dSph galaxy from near-infrared UKIRT/WFCAM
observations.
Gullieuszik M., Held E.V., Rizzi L., Girardi L., Marigo P., Momany Y.
<Mon. Not. R. Astron. Soc., 388, 1185-1197 (2008)>
=2008MNRAS.388.1185G 2008MNRAS.388.1185G
ADC_Keywords: Galaxies, nearby ; Stars, giant ; Photometry, infrared
Keywords: stars: AGB and post-AGB - stars: carbon -
galaxies: individual: Leo II - Local Group - galaxies: stellar content
Abstract:
We present a study of the evolved stellar populations in the dwarf
spheroidal galaxy Leo II, based on JHKs observations obtained with the
near-infrared array WFCAM at the UKIRT telescope. Combining the new
data with optical data, we derived photometric estimates of the
distribution of global metallicity [M/H] of individual red giant stars
from their V-Ks colours. Our results are consistent with the
metallicities of red giant branch (RGB) stars obtained from CaII
triplet spectroscopy, once the age effects are considered.
Description:
Observations of Leo II were carried out in 2005 April 19-20 using
the wide-field NIR camera WFCAM at the UKIRT telescope on Mauna Kea,
Hawaii.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 47 2069 The NIR catalogue of Leo-II stars over WFCAM array#3
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See also:
J/MNRAS/261/657 : Deep CCD photometry of Leo II (Demers+ 1993)
J/AJ/120/284 : Variables in Leo II dwarf spheroidal (Siegel+, 2000)
J/MNRAS/360/185 : VI photometry of the Leo II galaxy (Bellazzini+, 2005)
J/MNRAS/378/318 : Chemical abundances in Leo I and II dSph (Bosler+, 2007)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- [GHR2008] Sequential number
7- 8 I2 h RAh Right ascension (J2000.0)
10- 11 I2 min RAm Right ascension (J2000.0)
13- 17 F5.2 s RAs Right ascension (J2000.0)
19 A1 --- DE- Declination sign (J2000.0)
20- 21 I2 deg DEd Declination (J2000.0)
23- 24 I2 arcmin DEm Declination (J2000.0)
26- 29 F4.1 arcsec DEs Declination (J2000.0)
31- 35 F5.2 mag Jmag J magnitude
37- 41 F5.2 mag Hmag H magnitude
43- 47 F5.2 mag Ksmag Ks magnitude
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 20-Jan-2009