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J/AJ/136/2070   SEGUE stellar parameter pipeline. III.   (Allende Prieto+, 2008)

The SEGUE stellar parameter pipeline. III. Comparison with high-resolution spectroscopy of SDSS/SEGUE field stars. Allende Prieto C., Sivarani T., Beers T.C., Lee Y.S., Koesterke L., Shetrone M., Sneden C., Lambert D.L., Wilhelm R., Rockosi C.M., Lai D.K., Yanny B., Ivans I.I., Johnson J.A., Aoki W., Bailer-Jones C.A.L., Fiorentin P.R. <Astron. J., 136, 2070-2082 (2008)> =2008AJ....136.2070A
ADC_Keywords: Surveys ; Clusters, open ; Populations, stellar ; Abundances ; Effective temperatures ; Radial velocities Keywords: methods: data analysis - stars: abundances - stars: fundamental parameters - surveys - techniques: spectroscopic Abstract: We report high-resolution spectroscopy of 125 field stars previously observed as part of the Sloan Digital Sky Survey and its program for Galactic studies, the Sloan Extension for Galactic Understanding and Exploration (SEGUE). These spectra are used to measure radial velocities and to derive atmospheric parameters, which we compare with those reported by the SEGUE Stellar Parameter Pipeline (SSPP). The SSPP obtains estimates of these quantities based on SDSS ugriz photometry and low-resolution (R∼2000) spectroscopy. Description: The majority of the data presented in this paper were obtained with the Hobby-Eberly Telescope (HET), located in West Texas, making use of its High Resolution Spectrograph (HRS). Additional spectra were obtained with the Keck Observatory, using both the High Resolution Echelle Spectrometer (HIRES) and the Echelle Spectrograph and Imager (ESI), and with the Subaru telescope and the High Dispersion Spectrograph (HDS), both located on Mauna Kea, Hawaii. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 117 81 Comparison of SSPP velocities and atmospheric parameters (HET [Hobby-Eberly Telescope] sample) table4.dat 117 45 Comparison of SSPP velocities and atmospheric parameters (Keck-HIRES, Subaru and Keck-ESI samples)
See also: II/294 : SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009) J/AJ/136/2050 : SEGUE stellar parameter pipeline. II. (Lee+, 2008) J/AJ/141/89 : SEGUE stellar parameter pipeline. IV. (Smolinski+, 2011) J/AJ/141/90 : SEGUE stellar parameter pipeline. V. (Lee+, 2011) Byte-by-byte Description of file: table[34].dat
Bytes Format Units Label Explanations
1- 4 A4 --- --- [SDSS] 6- 24 A19 --- SDSS SDSS designation (JHHMMSS.ss+DDMMSS.s) 26- 30 I5 --- MJD MJD part of spectrum designation 31 A1 --- --- [-] 32- 35 I4 --- Plate Plate number of spectrum designation 36 A1 --- --- [-] 37- 39 I3 --- Fib Fiber number of spectrum designation 41- 47 F7.2 km/s RV SSPP radial velocity 49- 52 I4 K Teff ?=- SSPP effective temperature 54- 56 I3 K e_Teff ?=- 1-σ error on Teff 58- 61 F4.2 [cm/s2] logg ?=- SSPP surface gravity 63- 66 F4.2 [cm/s2] e_logg ?=- rms uncertainty on logg 68- 72 F5.2 [Sun] [Fe/H] ?=- SSPP metallicity 74- 77 F4.2 [Sun] e_[Fe/H] ?=- rms uncertainty on [Fe/H] 79 A1 --- S [HKES] OTHERS sample code (1) 81- 87 F7.2 km/s RV2 OTHERS radial velocity 89- 92 I4 K Teff2 OTHERS effective temperature 94- 96 I3 K e_Teff2 1-σ error on Teff2 98-101 F4.2 [cm/s2] logg2 OTHERS surface gravity 103-106 F4.2 [cm/s2] e_logg2 rms uncertainty on logg2 108-112 F5.2 [Sun] [Fe/H]2 OTHERS metallicity 114-117 F4.2 [Sun] e_[Fe/H]2 rms uncertainty on [Fe/H]2
Note (1): "SSPP" stands for "SEGUE Stellar Parameter Pipeline". The sample codes are: H = HET (Hobby-Eberly Telescope) K = Keck-HIRES S = Subaru E = Keck-ESI
History: From electronic version of the journal References: Lee et al., Paper I 2008AJ....136.2022L Lee et al., Paper II 2008AJ....136.2050A, Cat. J/AJ/136/2050 Smolinski et al., Paper IV 2011AJ....141...89S, Cat. J/AJ/141/89 Lee et al., Paper V 2011AJ....141...90L, Cat. J/AJ/141/90
(End) Patricia Vannier [CDS] 18-May-2011
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