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J/AJ/138/517      CaII spectroscopy of SMC red giants         (Parisi+, 2009)

Ca II triplet spectroscopy of Small Magellanic Cloud red giants. I. Abundances and velocities for a sample of clusters. Parisi M.C., Grocholski A.J., Geisler D., Sarajedini A., Claria J.J. <Astron. J., 138, 517-532 (2009)> =2009AJ....138..517P
ADC_Keywords: Magellanic Clouds ; Associations, stellar ; Stars, giant ; Spectroscopy ; Radial velocities Keywords: galaxies: star clusters - Magellanic Clouds - stars: abundances Abstract: We have obtained near-infrared spectra covering the CaII triplet lines for a large number of stars associated with 16 Small Magellanic Cloud (SMC) clusters using the VLT + FORS2. These data compose the largest available sample of SMC clusters with spectroscopically derived abundances and velocities. Our clusters span a wide range of ages and provide good areal coverage of the galaxy. Description: V- and I-band pre-images of our target fields were taken by ESO Paranal staff in 2005 August as part of Program 076.B-0533. The spectra of the program stars were obtained during 2005 November in service mode by the VLT staff, using the FORS2 spectrograph in mask exchange unit (MXU) mode. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 63 16 SMC clusters table2.dat 72 102 Position and measured values for member stars
See also: J/AJ/131/2514 : Radial velocities of red giants in the SMC (Harris+, 2006) J/AJ/136/1039 : CaII index of SMC red giant branch stars (Carrera+, 2008) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Name Cluster name 7- 44 A38 --- ONames Other names 46- 47 I2 h RAh Right ascension (J2000) 49- 50 I2 min RAm Right ascension (J2000) 52- 53 I2 s RAs Right ascension (J2000) 55 A1 --- DE- Declination sign (J2000) 56- 57 I2 deg DEd Declination (J2000) 59- 60 I2 arcmin DEm Declination (J2000) 62- 63 I2 arcsec DEs Declination (J2000)
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Name Cluster name 7- 8 I2 --- ID Cluster member identification number 10- 11 I2 h RAh Hour of Right Ascension (J2000) 13- 14 I2 min RAm Minute of Right Ascension (J2000) 16- 20 F5.2 s RAs Second of Right Ascension (J2000) 22 A1 --- DE- Sign of the Declination (J2000) 23- 24 I2 deg DEd Degree of Declination (J2000) 26- 27 I2 arcmin DEm Arcminute of Declination (J2000) 29- 33 F5.2 arcsec DEs Arcsecond of Declination (J2000) 35- 39 F5.1 km/s RV Heliocentric radial velocity 41- 43 F3.1 km/s e_RV The 1σ error in RV 45- 49 F5.2 mag V-VHB ? Brightness difference between star and cluster's horizontal branch 51- 54 F4.2 0.1nm W(Ca) ? Summed Ca II equivalent width in Å (1) 56- 59 F4.2 0.1nm e_W(Ca) ? The 1σ error in SigmaW 61- 66 F6.3 [Sun] [Fe/H] ? Metallicity 68- 72 F5.3 [Sun] e_[Fe/H] ? The error in Metallicity
Note (1): Where SigmaW = EW(8498) + EW(8542) + EW(8662).
History: From electronic version of the journal References: Parisi et al., Paper II, 2010AJ....139.1168P, cat. J/AJ/139/1168 Parisi et al., Paper III, 2015AJ....149..154P, cat. J/AJ/149/154 Parisi et al., Paper IV, 2016AJ....152...58P, cat. J/AJ/152/58
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 31-Dec-2011
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