J/AJ/139/2289 Abundances of five red giants in M5 (Koch+, 2010)
A differential chemical abundance scale for the globular cluster M5.
Koch A., McWilliam A.
<Astron. J., 139, 2289-2299 (2010)>
=2010AJ....139.2289K 2010AJ....139.2289K
ADC_Keywords: Clusters, globular ; Stars, giant ; Equivalent widths
Keywords: globular clusters: individual (M5) - stars: abundances -
stars: atmospheres - stars: individual (Arcturus)
Abstract:
We present LTE chemical abundances for five red giants and one AGB
star in the Galactic globular cluster (GC) M5 based on high-resolution
spectroscopy using the Magellan Inamori Kyocera Echelle spectrograph
on the Magellan 6.5m Clay telescope. Our results are based on a
line-by-line differential abundance analysis relative to the
well-studied red giant Arcturus.
Description:
Observations were carried out during six nights in 2003 July using the
Magellan Inamori Kyocera Echelle (MIKE) spectrograph at the 6.5m
Magellan2/Clay Telescope.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 128 6 Log of observations, target properties and
atmospheric parameters
table2.dat 54 178 Line list
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See also:
J/AJ/106/1524 : Proper motions in M5 (Rees, 1993)
J/PAZh/21/509 : Identification and coordinates in M5 (Evstigneeva,+ 1995)
J/ApJ/611/323 : BVI photometry of M5 giant branch stars (Sandquist+, 2004)
J/ApJ/632/266 : WFPC2 photometry of the globular cluster M5 (Layden+, 2005)
J/ApJ/648/1026 : HST photometry of M5 blue stragglers (Warren+, 2006)
J/ApJ/663/267 : M5 blue straggler population (Lanzoni+, 2007)
J/MNRAS/411/1744 : Observations of RR Lyr stars in M5 (Szeidl+, 2011)
J/AJ/135/1551 : Abundances of stars in 47 Tuc (Koch+, 2008)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Star name
10 A1 --- n_Name [b] b: AGB star (Sandquist & Bolte, 2004,
Cat. J/ApJ/611/323)
12- 13 I2 h RAh Right ascension (J2000)
15- 16 I2 min RAm Right ascension (J2000)
18- 21 F4.1 s RAs Right ascension (J2000)
23 A1 --- DE- Declination sign (J2000)
24- 25 I2 deg DEd Declination (J2000)
27- 28 I2 arcmin DEm Declination (J2000)
30- 31 I2 arcsec DEs Declination (J2000)
33- 46 A14 --- Date Observation date
47- 50 I4 s ExpTime Exposure time
52- 54 I3 --- S/N Signal-to-noise ratio per pixel at blaze peak
of the Halpha order
56- 60 F5.2 mag Vmag V magnitude
62- 65 F4.2 mag B-I B-I colour index
67- 70 F4.2 mag V-Ks V-Ks colour index
72- 75 F4.1 km/s RV Radial velocity
77- 79 F3.1 km/s e_RV rms uncertainty on RV
81- 84 I4 K T(V-Ks) Photometric effective temperature
86- 89 I4 K Tspec Spectrsocopic effective temperature
91- 94 I4 K Teff Average effective temperature
96- 99 F4.2 [cm/s2] logg Surface gravity
101-104 F4.2 km/s xi Microturbulent velocity ξ
106-128 A23 --- SName Simbad name
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Ion Ion identification
7- 13 F7.2 0.1nm lambda Wavelength in Angstroms
15- 18 F4.2 eV EP Excitation potential
20- 24 F5.1 10-13m M5I-14 ? Equivalent width (mÅ) in M5I-14
26- 30 F5.1 10-13m M5I-39 ? Equivalent width (mÅ) in M5I-39
32- 36 F5.1 10-13m M5III-50 ? Equivalent width (mÅ) in M5III-50
38- 42 F5.1 10-13m M5III-94 ? Equivalent width (mÅ) in M5III-94
44- 48 F5.1 10-13m M5IV-34 ? Equivalent width (mÅ) in M5IV-34
50- 54 F5.1 10-13m M5IV-82 ? Equivalent width (mÅ) in M5IV-82
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History:
From electronic version of the journal
References:
Koch & McWilliam, Paper I 2008AJ....135.1551K 2008AJ....135.1551K, J/AJ/135/1551
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 30-May-2012