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J/ApJS/268/19
  M2FS & Hectochelle spectra of dSph in the MW halo (Walker+, 2023)
ReadMe+ftp
2023ApJS..268...19W
Similar Catalogs
spectrum/fits
spectrum
Post annotation 		img(gal)
1.J/ApJS/268/19/table1(c)Log of M2FS observations of Galactic halo objects (92 rows)
2.J/ApJS/268/19/table2(c)Log of MMT/Hectochelle observations of Galactic halo objects (194 rows)
3.J/ApJS/268/19/hectocat(c)Hectochelle catalog (from hectocatalogpublic.fits) (original column names in green)[spectrum/fits]
spectrum
(31927 rows)
4.J/ApJS/268/19/m2fshi(c)M2FS high resolution catalog (from m2fsHiRescatalog_public.fits) (original column names in green) (16001 rows)
5.J/ApJS/268/19/m2fsmed(c)M2FS medium resolution catalog (from m2fsMedRescatalog_public.fits) (original column names in green) (1439 rows)
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Simple ConstraintList Of Constraints
 
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Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (ALL)Inst (char) Instrument identifier (meta.id;instr)
   (ALL)RAJ2000 deg (i) [14/355] Field center right ascension (J2000) (pos.eq.ra;meta.main)
   (ALL)DEJ2000 deg (i) [-79.3/77] Field center declination (J2000) (pos.eq.dec;meta.main)
  (1+2)Obs s (n)UT date of the observation (time.epoch;obs)
   (ALL)TExp s [671/16200] Exposure time (time.duration;obs.exposure)
  (1+2)Nexp   [1/6] Number of exposures (meta.number)
  (1+2)Ntar   [23/240] Number of targets (meta.number)
  (1+2)Ns  (n)Number of sources for this target in high and medium resolution (meta.number)
   (ALL)Target (char) Target name as in catalogs (meta.id;meta.main)
  (1+2)SimbadName (char) (n)Designation understandable by the Simbad data-base (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4+5)ObjID (char) Unique identifier for this observation (RAdECHJD) (obj_id) (meta.id;meta.main)
  (3+4+5)Gaia  (n) Gaia DR3 source ID (gaia_source_id) (meta.id.cross)
  (3+4+5)Gmag mag (n) [9/22.1] Gaia DR3 G band magnitude (gaia_gmag) (phot.mag;em.opt)
  (3+4+5)BPmag mag (n) [9.7/23] Gaia DR3 BP magnitude (gaia_bpmag) (phot.mag;em.opt.B)
  (3+4+5)RPmag mag (n) [8.5/23] Gaia DR3 RP magnitude (gaia_rpmag) (phot.mag;em.opt.R)
  (3+4+5)e_Gmag mag (n) [1.3e-8/0.01] Uncertainty on Gmag (gaia_siggmag) (stat.error;phot.mag)
  (3+4+5)e_BPmag mag (n) [1e-7/2] Uncertainty on BPmag (gaia_sigbpmag) (stat.error;phot.mag)
  (3+4+5)e_RPmag mag (n) [1.8e-10/53] Uncertainty on RPmag (gaia_sigrpmag) (stat.error;phot.mag)
  (3+4+5)Gmag0 mag (n) [9/22] Gaia dereddened G-band magnitude (gaia_gmag_dered) (phot.mag;em.opt)
  (3+4+5)BPmag0 mag (n) [9.5/23] Gaia dereddened BP-band magnitude (gaia_bpmag_dered) (phot.mag;em.opt.B)
  (3+4+5)RPmag0 mag (n) [8.4/23] Gaia dereddened RP-band magnitude (gaia_rpmag_dered) (phot.mag;em.opt.R)
  (3+4+5)pmRA mas/yr (n) [-111/99] Gaia DR3 proper motion in RA (gaia_pmra) (pos.pm;pos.eq.ra)
  (3+4+5)pmDE mas/yr (n) [-124/109] Gaia DR3 proper motion in declination (gaia_pmdec) (pos.pm;pos.eq.dec)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4+5)e_pmRA mas/yr (n) [0.01/3.3] pmRA uncertainty (gaia_sigpmra) (stat.error;pos.pm;pos.eq.ra)
  (3+4+5)e_pmDE mas/yr (n) [0.008/3.3] pmDE uncertainty (gaia_sigpmdec) (stat.error;pos.pm;pos.eq.dec)
  (3+4+5)plx mas (n) [-8.1/20] Gaia DR3 parallax (gaia_parallax) (pos.parallax.trig)
  (3+4+5)e_plx mas (n) [0.01/5] plx uncertainty (gaia_sigparallax) (stat.error;pos.parallax)
  (3+4+5)r_Pos (char) Position reference (ra_dec_source) (meta.ref;pos.frame)
  (3+4+5)HJD d (i) Heliocentric Julian Date of spectroscopic observation (hjd) (time.epoch)
  (3+4+5)S/N   [-11/1077] Median signal-to-noise ratio per pixel (sn_ratio) (stat.snr)
  (3+4+5)Vlosraw km/s [-513/505] Mean of posterior PDF for VLOS (solar rest frame) without shift to APOGEE zero-point (vlos_raw) (phys.veloc)
  (3+4+5)e_Vlosraw km/s [0.07/463] Vlosraw standard deviation, as sampled by MultiNest (vlos_raw_error) (stat.error)
  (3+4+5)skVlosraw   [-112/141] Skewness of posterior PDF for VLOS (vlos_raw_skew) (stat.fit.param)
  (3+4+5)ktVlosraw   [-2/20194] Kurtosis of posterior PDF for VLOS (vlos_raw_kurtosis) (stat.fit.param)
  (3+4+5)Vlos km/s [-512/505] Vlosraw, shifted to APOGEE zero-point (vlos) (phys.veloc)
  (3+4+5)e_Vlos km/s [0.3/479] Vlos and Vlos raw uncertainty after applying adjustment in Section 4.2 (vlos_error) (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4+5)Teffraw K [3907/7459] Mean of posterior PDF for Teff, without shift to APOGEE zero-point (teff_raw) (phys.temperature)
  (3+4+5)e_Teffraw K [7/1299] Standard deviation of posterior PDF for Teff, as sampled by MultiNest (teff_raw_error) (stat.error)
  (3+4+5)skTeffraw   [-6/22] Skewness of posterior PDF for Teff, as sampled by MultiNest (teff_raw_skew) (stat.fit.param)
  (3+4+5)ktTeffraw   [-2/638] Kurtosis of posterior PDF for Teff, as sampled by MultiNest (teff_raw_kurtosis) (stat.fit.param)
  (3+4+5)Teff K [4050/7680] Teffraw, shifted to APOGEE zero-point (teff) (phys.temperature)
  (3+4+5)e_Teff K [8/1482] Error in teff_raw and teff, after applying adjustment in Section 4.2 (teff_error) (stat.error;phys.temperature.effective)
  (3+4+5)loggraw [cm/s2] [0.02/5] Mean of posterior PDF for logg, without shift to APOGEE zero-point (logg_raw) (phys.gravity)
  (3+4+5)e_loggraw [cm/s2] [0.02/2] Standard deviation of posterior PDF for logg, as sampled by MultiNest (logg_raw_error) (stat.error)
  (3+4+5)skloggraw   [-8.5/15] Skewness of posterior PDF for logg, as sampled by MultiNest (logg_raw_skew) (stat.fit.param)
  (3+4+5)ktloggraw   [-2/252] Kurtosis of posterior PDF for logg, as sampled by MultiNest (logg_raw_kurtosis) (stat.fit.param)
  (3+4+5)logg [cm/s2] [0.5/5.5] Loggraw, shifted to APOGEE zero-point (logg) (phys.gravity)
  (3+4+5)e_logg [cm/s2] [0.02/2.1] Error in loggraw and logg, after applying adjustment in Section 4.2 (logg_error) (stat.error)
  (3+4+5)FeHraw [-] [-4/0.5] Mean of posterior PDF for [Fe/H] without shift to APOGEE zero-point (feh_raw) (phys.abund.Fe)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4+5)e_FeHraw [-] [0.009/2] Standard deviation of posterior PDF for [Fe/H], as sampled by MultiNest (feh_raw_error) (stat.error)
  (3+4+5)skFeHraw   [-13/12.3] Skewness of posterior PDF for [Fe/H], as sampled by MultiNest (feh_raw_skew) (stat.fit.param)
  (3+4+5)ktFeHraw   [-2/252] Kurtosis of posterior PDF for [Fe/H], as sampled by MultiNest (feh_raw_kurtosis) (stat.fit.param)
  (3+4+5)[Fe/H] [-] [-3.8/0.7] Fehraw, shifted to APOGEE zero-point (feh) (phys.abund.Fe)
  (3+4+5)e_[Fe/H] [-] [0.01/2] Error in fehraw and feh, after applying adjustment in Section 4.2 (feh_error) (stat.error;phys.abund.Fe)
  (3+4+5)MgFeraw [-] [-0.8/1] Mean of posterior PDF for [Mg/Fe] without shift to APOGEE zero-point (mgfe_raw) (phys.abund)
  (3+4+5)e_MgFeraw [-] [0.009/0.7] Standard deviation of posterior PDF for [Mg/Fe], as sampled by MultiNest (mgfe_raw_error) (stat.error)
  (3+4+5)skMgFeraw   [-9.1/9.3] Skewness of posterior PDF for [Mg/Fe], as sampled by MultiNest (mgfe_raw_skew) (stat.fit.param)
  (3+4+5)ktMgFeraw   [-2/231] Kurtosis of posterior PDF for [Mg/Fe], as sampled by MultiNest (mgfe_raw_kurtosis) (stat.fit.param)
  (3+4+5)[Mg/Fe] [-] [-1/1] Mgferaw, shifted to APOGEE zero-point (mgfe) (phys.abund)
  (3+4+5)e_[Mg/Fe] [-] [0.01/0.8] Error in mgferaw and mgfe, after applying adjustment in Section 4.2 (mgfe_error) (stat.error;phys.abund)
  (3+4+5)smoothRaw 0.1nm [0.06/0.4] Bandwidth σLSF (Angstroms), of Gaussian smoothing kernel applied to template spectra (smooth_raw) (instr.bandwidth)
  (3+4+5)e_smoothRaw 0.1nm [0.0003/0.07] Standard deviation of posterior PDF for σLSF, as sampled by MultiNest (smooth_raw_error) (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4+5)sksmoothRaw   [-4.5/12] Skewness of posterior PDF for σLSF, as sampled by MultiNest (smooth_raw_skew) (stat.fit.param)
  (3+4+5)ktsmoothRaw   [-2/310] Kurtosis of posterior PDF for σLSF, as sampled by MultiNest (smooth_raw_kurtosis) (stat.fit.param)
  (3+4+5)MedSky e (n) [-13/1187] Median count of sky spectrum that was subtracted (median_sky) (instr.skyLevel)
  (3+4+5)s_MedSky e (n) [0.01/49] Standard deviation of median_sky, over spectra acquired in same observation (standard_deviation_median_sky) (stat.stdev)
  (3+4+5)Filt (char) [RV31 ,HiRes,MedRes] Filter used for observation (filter_name) (instr.setup;instr.filter)
  (3+4+5)Chi2  (n) [0.2/79782] χ2 for best-fitting model spectrum, using original variance spectrum (chi2) (stat.fit.chi2)
  (3+4+5)Chi2r  (n) [0.07/247] χ2 for best-fitting model spectrum, using rescaled variance spectrum from Equation (15) (chi2_rescaled) (stat.fit.chi2)
  (3+4+5)Npix   [0/2043] Number of (unmasked) pixels included in spectrum fit (npix) (meta.number)
  (3+4+5)w5163 e (n) [-203/101081] Median (sky-subtracted) counts over spectral range 5160-5167Å (w5163) (phot.count)
  (3+4+5)w5180 e (n) [-241/84592] Median (sky-subtracted) counts over spectral range 5176-5183Å (w5180) (phot.count)
  (3+4+5)VhelioCorr km/s [-29.4/28.7] Heliocentric correction that was applied (added) to VLOS after spectrum model fitting (vhelio_correction) (phys.veloc;arith.diff)
  (3+4+5)fits (char) Download the FITS file (meta.ref.url)
  (3+4+5)FileName (char) Name of multiextension FITS file containing processed spectrum in subdirectory "fits" (fits_filename) (meta.id;meta.fits)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4+5)Index   [0/239] Index containing the spectrum of this source (fits_index) (meta.id)
  (3+4+5)Obs   [1/15] (chronological) observation number for this source (obs) (Note 1)   (meta.id;obs)
  (3+4+5)Nobs   [1/15] Total number of observations of this source (n_obs) (meta.number)
  (3+4+5)Goodobs   [0/15] (chronological) observation number for this source, after quality-control filter (good_obs) (Note 1)   (meta.id;obs)
  (3+4+5)goodNobs   [0/15] Total number of observations of this source, after quality-control filter (good_n_obs) (meta.number)
  (3+4+5)VlosrawAvg km/s (n) [-498/505] (inverse-variance) weighted mean of vlos_raw (solar rest frame) over goodNobs observations (vlos_raw_mean) (phys.veloc)
  (3+4+5)VlosAvg km/s (n) [-498/505] VlosrawAvg shifted to APOGEE zero-point (vlos_mean) (phys.veloc)
  (3+4+5)e_VlosAvg km/s (n) [0.1/7] Error in VlosrawAvg and VlosAvg (vlos_mean_error) (stat.error)
  (3+4+5)s_VlosAvg km/s (n) [0/203] (inverse-variance) weighted standard deviation of Vlos over goodNobs observations (vlos_mean_scatter) (stat.stdev;phys.atmol.wOscStrength;obs)
  (3+4+5)TeffrawAvg K (n) [3907/7422] (inverse-variance) weighted mean of Teffraw over goodNobs observations (teff_raw_mean) (phys.temperature)
  (3+4+5)TeffAvg K (n) [4052/7628] TeffrawAvg shifted to APOGEE zero-point (teff_mean) (phys.temperature)
  (3+4+5)e_TeffAvg K (n) [6/1177] Error in TeffrawAvg and TeffAvg (teff_mean_error) (stat.error)
  (3+4+5)s_TeffAvg K (n) [0/910] (inverse-variance) weighted standard deviation of Teff over goodNobs observations (teff_mean_scatter) (stat.stdev)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4+5)loggrawAvg [cm/s2] (n) [0.03/5] (inverse-variance) weighted mean of loggraw over goodNobs observations (logg_raw_mean) (phys.gravity)
  (3+4+5)loggAvg [cm/s2] (n) [0.5/5.5] LoggrawAvg shifted to APOGEE zero-point (logg_mean) (phys.gravity)
  (3+4+5)e_loggAvg [cm/s2] (n) [0.02/2.1] Error in loggrawAvg and loggAvg (logg_mean_error) (stat.error)
  (3+4+5)s_loggAvg [cm/s2] (n) [0/2] (inverse-variance) weighted standard deviation of logg over goodNobs observations (logg_mean_scatter) (stat.stdev;phys.atmol.wOscStrength;obs)
  (3+4+5)FeHrawAvg [-] (n) [-4/0.5] (inverse-variance) weighted mean of feh_raw over goodNobs observations (feh_raw_mean) (phys.abund.Fe)
  (3+4+5)FeHAvg [-] (n) [-3.8/0.7] FeHrawAvg shifted to APOGEE zero-point (feh_mean) (phys.abund.Fe)
  (3+4+5)e_FeHAvg [-] (n) [0.01/2] Error in fehrawmean and feh_mean (feh_mean_error) (stat.error)
  (3+4+5)s_FeHAvg [-] (n) [0/2] (inverse-variance) weighted standard deviation of [Fe/H] over goodNobs observations (feh_mean_scatter) (stat.stdev;phys.abund.Fe;obs)
  (3+4+5)MgFerawAvg [-] (n) [-0.8/1] (inverse-variance) weighted mean of mgfeRaw over goodNobs observations (mgfe_raw_mean) (phys.abund)
  (3+4+5)MgFeAvg [-] (n) [-1/1] MgferawAvg, shifted to APOGEE zero-point (mgfe_mean) (phys.abund)
  (3+4+5)e_MgFeAvg [-] (n) [0.009/0.7] Error in mgferawmean and mgfe_mean (mgfe_mean_error) (stat.error)
  (3+4+5)s_MgFeAvg [-] (n) [0/0.7] (inverse-variance) weighted standard deviation of [Mg/Fe] over goodNobs observations (mgfe_mean_scatter) (stat.stdev)
  (3+4+5)Ncal  (n) [1/3] Number of ThArNe calibration frames used for wavelength calibration (only for M2FS) (n_wav_cal) (meta.number)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4+5)TempMin degC (n) [8.6/20.4] Minimum temperature (°C) recorded at detector during science subexposures (only for M2FS) (temp_min) (phys.temperature)
  (3+4+5)TempMax degC (n) [8.8/21.1] Maximum temperature (°C) recorded at detector during science subexposures (only for M2FS) (temp_max) (phys.temperature)
  (3+4+5)f_cal  (n) [0/1] True if nwavcal=1 and tempmax–tempmin≥1°C (only for M2FS) (wav_cal_flag) (meta.code)
  (3+4+5)f_Chi2   [0/1] True if chi2 is above the curve in the top panels of Figure 15 (chi2_flag) (meta.code)
  (3+4+5)f_C   [0/1] True if flux ratio W5163/W5180 is below the curve in the bottom panels of Figure 15 (carbon_flag) (meta.code)
  (3+4+5)f_Chi2any   [0/1] True if any observations contributing to mean have f_Chi2=True (any_chi2_flag) (meta.code)
  (3+4+5)f_Cany   [0/1] True if any observations contributing to mean have f_C=True (any_carbon_flag) (meta.code)
  (3+4+5)f_Vlosvar   [0/1] True if vlosmeanscatter≥3vlosmeanerror (vlos_variable_flag) (meta.code)
  (3+4+5)f_Teffvar   [0/1] True if teffmeanscatter≥3teffmeanerror (teff_variable_flag) (meta.code)
  (3+4+5)f_loggvar   [0/1] True if loggmeanscatter≥3loggmeanerror (logg_variable_flag) (meta.code)
  (3+4+5)f_fehvar   [0/1] True if fehmeanscatter≥3fehmeanerror (feh_variable_flag) (meta.code)
  (3+4+5)f_mgfevar   [0/1] True if mgfemeanscatter≫=3mgfemeanerror (mgfe_variable_flag) (meta.code)
  (3+4+5)f_gaiavar (char) Gaia (DR3) photvariableflag (gaia_phot_variable_flag) (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3+4+5)RRL   [0/1] True if source is listed in Gaia DR3 variability RR Lyrae table (vari_rrlyrae) (gaia_rrl) (meta.code.class)
  (3+4+5)AGN   [0/1] True if source is listed in Gaia DR3 variability AGN catalog (vari_agn) (gaia_agn) (meta.code.class)
  (3+4+5)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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