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Details - Atmospheric Parameters and Chemical Abundances from Stellar Spectra - HARPS

Position Name Description Data Type Data Size UCD Physical Unit
1 DP_ID ESO Data set identifier STRING 25
2 OBJECT Object designation STRING 32
3 TARGNAME Target designation STRING 25
4 RAJ2000 Telescope pointing (right ascension, J2000) DOUBLE 1 pos.eq.ra;meta.main deg
5 DEJ2000 Telescope pointing (declination, J2000) DOUBLE 1 pos.eq.dec;meta.main deg
6 MJD_OBS Start of observation date DOUBLE 1 obs;time.epoch d
7 EXPTIME Total integration time FLOAT 1 obs.exposure s
8 SNR Signal-to-noise ratio FLOAT 1 stat.snr
9 VRAD Radial Velocity FLOAT 1 spect.dopplerVeloc km/s
10 ERR_VRAD Error on the Radial Velocity FLOAT 1 stat.error;spect.dopplerVeloc km/s
11 VRAD_CCF_FWHM FWHM of the CCF between the spectrum and the binary mask FLOAT 1 stat.correlation Angstrom
12 VRAD_FLAG Quality of the Vrad: 0=very good -> 5=very bad INT16 1 meta.code.class
13 TEFF Effective Temperature FLOAT 1 phys.temperature.effective K
14 ERR_INT_TEFF Effective Temperature Internal Error FLOAT 1 stat.error;phys.temperature.effective K
15 ERR_EXT_TEFF Effective Temperature External Error FLOAT 1 stat.error;phys.temperature.effective K
16 LOG_G Surface Gravity (log g) FLOAT 1 phys.gravity cm.s**(-2)
17 ERR_INT_LOG_G Surface Gravity Internal Error FLOAT 1 stat.error;phys.gravity cm.s**(-2)
18 ERR_EXT_LOG_G Surface Gravity External Error FLOAT 1 stat.error;phys.gravity cm.s**(-2)
19 M_H Mean Metallicity [M/H] FLOAT 1 phys.abund.Fe;stat.mean
20 ERR_INT_M_H Mean Metallicity Internal Error FLOAT 1 stat.error;phys.abund.Fe
21 ERR_EXT_M_H Mean Metallicity External Error FLOAT 1 stat.error;phys.abund.Fe
22 ALPHA Alpha elements over Iron abundances [Alpha/Fe] FLOAT 1 phys.abund
23 ERR_INT_ALPHA Alpha elements over Iron Enrichment Internal Error FLOAT 1 stat.error;phys.abund
24 ERR_EXT_ALPHA Alpha elements over Iron Enrichment External Error FLOAT 1 stat.error;phys.abund
25 CHI2 log(Chi^2) between the observed and reconstructed spectra FLOAT 1
26 CHI2_FLAG Quality Flag on this fit: 0=very good -> 2=very bad INT16 1 meta.code.class
27 ESO_SPEC_ID Filename of original spectrum being analysed STRING 42;meta.main