J/ApJ/943/177ivo://CDS.VizieR/J/ApJ/943/177doi:10.26093/cds/vizier.19430177CDSMentuch Cooper E.Gebhardt K.Davis D.Farrow D.J.Liu C.Zeimann G.,Ciardullo R.Feldmeier J.J.Drory N.Jeong D.Benda B.Bowman W.P.,Boylan-Kolchin M.Chavez Ortiz O.A.Debski M.H.Dentler M.,Fabricius M.Farooq R.Finkelstein S.L.Gawiser E.Gronwall C.,Hill G.J.Hopp U.House L.R.Janowiecki S.Khoraminezhad H.,Kollatschny W.Komatsu E.Landriau M.Niemeyer M.L.Lee H.,MacQueen P.Mawatari K.McKay B.Ouchi M.Poppe J.Saito S.,Schneider D.P.Snigula J.Thomas B.P.Tuttle S.Urrutia T.Weiss L.,Wisotzki L.Zhang Y.The HETDEX collaboration2025-05-21T20:14:37Z2025-02-14T14:38:12ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesspectroscopysurveysredshiftedactive-galactic-nucleiapparent-magnitudevisible-astronomygalaxy-radiiWe present the first publicly released catalog of sources obtained from the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). HETDEX is an integral field spectroscopic survey designed to measure the Hubble expansion parameter and angular diameter distance at 1.88<z<3.52 by using the spatial distribution of more than a million Ly{alpha}-emitting galaxies over a total target area of 540deg^2^. The catalog comes from contiguous fiber spectra coverage of 25deg^2^ of sky from 2017 January through 2020 June, where object detection is performed through two complementary detection methods: one designed to search for line emission and the other a search for continuum emission. The HETDEX public release catalog is dominated by emission-line galaxies and includes 51863 Ly{alpha}-emitting galaxy (LAE) identifications and 123,891 [OII]-emitting galaxies at z<0.5. Also included in the catalog are 37916 stars, 5274 low-redshift (z<0.5) galaxies without emission lines, and 4976 active galactic nuclei. The catalog provides sky coordinates, redshifts, line identifications, classification information, line fluxes, [OII] and Ly{alpha} line luminosities where applicable, and spectra for all identified sources processed by the HETDEX detection pipeline. Extensive testing demonstrates that HETDEX redshifts agree to within {Delta}z<0.02, 96.1% of the time to those in external spectroscopic catalogs. We measure the photometric counterpart fraction in deep ancillary Hyper Suprime-Cam imaging and find that only 55.5% of the LAE sample has an r-band continuum counterpart down to a limiting magnitude of r~26.2mag (AB) indicating that an LAE search of similar sensitivity to HETDEX with photometric preselection would miss nearly half of the HETDEX LAE catalog sample.2023ApJ...943..177Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/943/177CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/261 : GOODS initial results (Giavalisco+, 2004)VII/289 : SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020)V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)J/AJ/127/3121 : TKRS catalog of GOODS-North Field (Wirth+, 2004)J/ApJ/653/1004 : Galaxies at 1.4<~z<~3.0 in GOODS-North Field (Reddy+, 2006)J/MNRAS/374/664 : Stellar atmospheric param. in MILES library (Cenarro+, 2007)J/ApJ/667/79 : Ly{alpha} emission-line galaxies at z=3.1 (Gronwall+, 2007)J/ApJ/689/687 : GOODS-N spectroscopic survey (Barger+, 2008)J/ApJS/176/301 : Subaru/XMM-Newton deep survey IV. (SXDS) (Ouchi+, 2008)J/ApJ/706/158 : Early-type galaxies in PEARS (Ferreras+, 2009)J/ApJS/184/218 : The zCOSMOS 10k-bright spectroscopic sample (Lilly+, 2009)J/ApJS/192/5 : Emission-line gal. from HETDEX pilot survey (Adams+, 2011)J/ApJS/193/14 : DEEP3 Galaxy Redshift Survey: GOODS-N field (Cooper+, 2011)J/ApJ/744/110 : LAE galaxies between 2.1=<z<=3.1 (Ciardullo+, 2012)J/ApJ/777/18 : Stellar mass functions of galaxies to z=4 (Muzzin+, 2013)J/A+A/575/A75 : MUSE 3D view of HDF-S (Bacon+, 2015)J/ApJ/810/71 : UV mag of cand. galaxies at 3~<z~<8.5 (Finkelstein+, 2015)J/AJ/150/153 : Team Keck Redshift Survey 2 (TKRS2) (Wirth+, 2015)J/ApJ/817/79 : Properties of emission-line galaxies (Hagen+, 2016)J/ApJS/225/27 : 3D-HST Survey: grism spectra master cat. (Momcheva+, 2016)J/ApJ/858/77 : DEIMOS 10K sp. survey in COSMOS field (Hasinger+, 2018)J/MNRAS/476/4725 : SC4K catalogue of candidate LAEs (Sobral+, 2018)J/A+A/624/A141 : MUSE-Wide Survey DR1 catalog (Urrutia+, 2019)J/A+A/643/A149 : J-PLUS Ly{alpha}-emitting candidates (Spinoso+, 2020)J/ApJ/920/122 : Candidate Ly{alpha}-emitting galaxies spectra (Davis+, 2021)J/ApJ/911/108 : Stars of HETDEX. I. RVs & metal-poor stars (Hawkins+, 2021)J/ApJ/911/78 : SILVERRUSH. X. LAE gal. & AGN from HSC (Ono+, 2021)http://hetdex.org/ : HETDEX home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/943/177https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/943/177http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/943/177https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/943/177https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/943/177http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/943/177GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/943/177/sources (*Source observation table (from hetdex_sc1_v3.2.ecsv))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/943/177/sources?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/943/177/sources?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/943/177/sources?GETtext/xml+votable180.050000true14.0177780.0090231190.005555555555555556Cone search capability for table J/ApJ/943/177/detinfo (*Detection info table (from hetdex_sc1_detinfo_v3.2.fits))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/943/177/detinfo?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/943/177/detinfo?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/943/177/detinfo?GETtext/xml+votable180.050000true189.1532462.19341690.0055555555555555565/1399 1405-1406 1485-1486 1489-1490 2494 2536 2685-2687 2749-2750 2765-2767 2769-2770 2775 2779-2780 2785-2786 2788 2791 2796 2800 2829-2831 2833-2836 2840 2849-2852 2856-2857 4442 4453-4454 4457-4458 4501-4502 4505-4506 4517-4518 6/1885 1906 5609 5611 5614-5615 5617-5619 5628-5630 5855 5917-5919 5935 5937-5939 5948-5949 5954-5955 5964-5966 5968-5970 5973-5978 5980-5981 5984-5986 6020-6021 6024-6026 9853 9941 9966-9967 9969 9982-9983 10024 10121-10123 10126 10148 10150 10152-10154 10711 10716 10718-10719 10726-10727 10735 10739 10973-10975 10983 10989-10992 10994-10995 11004-11006 11038-11039 11053 11055 11059 11075 11084 11086 11088-11090 11094-11095 11098-11099 11104-11105 11111 11113-11115 11124 11128 11138-11139 11148-11150 11157-11159 11161-11163 11168-11170 11172-11173 11175-11177 11179-11182 11188 11192 11204 11208 11230 11252 11295 11310-11311 11314-11315 11331 11348-11350 11352-11354 11364-11366 11368-11370 11393-11395 11412-11414 11416-11418 11433-11436 11438 11776-11778 17661-17663 17725-17727 17762-17763 17766 17772 17774 17805 17807 17810-17811 17820-17822 17825-17827 17836-17838 17840-17842 17856-17858 17983 17997-17999 18002-18003 18012-18014 18019 18028-18030 18032-18034 18063 18065 18067 18076-18077 18112-18114 18176-18178 27247 27256 272583.588997330618193e-19 4.653515163505597e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/943/177?format=asciiOpticaldefaultJ/ApJ/943/177/sources*Source observation table (from hetdex_sc1_v3.2.ecsv)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintm_HETDEXNumber of observations for this sourcemeta.numberintnullablee_FOII[0.1/109.2]? FOII uncertainty (flux_oii_err)1e-17mW.m**-2stat.error;phot.flux;em.linefloatnullableS/N[5.5/123]? Signal-to-noise for line emission (sn)stat.snrfloatnullableID[2140000000000/2140300001775] HETDEX source identifier (source_id)meta.idshotID[20170103002/20200626020] Integer represent observation ID: int(date+obsid) (shotid)meta.id;obsRA_ICRS[5.8/245.3] Right ascension (ICRS) (RA)degpos.eq.ra;meta.mainindexedDE_ICRS[-1.2/62.4] Declination (ICRS) (DEC)degpos.eq.dec;meta.mainindexedgmag[12.29/34.71] SDSS g-band AB magnitude measured in HETDEX spectrum (gHETDEX)magphot.mag;em.opt.BfloatAv[0.01/1.44] Applied dust correction in the V bandmagphys.absorption;em.opt.VfloatzHetdex[-2/4.165] HETDEX spectroscopic redshiftsrc.redshiftdoublen_zHetdexHETDEX spectroscopic redshift source (z_hetdex_src) (1)meta.note;src.redshiftcharq_zHetdex[-2/1] 0 to 1 confidence HETDEX spectroscopic redshift source (z_hetdex_conf)meta.code.qual;src.redshiftdoubleOTypeObject type (source_type) (2)src.classcharNdet[1/90] Number of detections in the source group (n_members)meta.numberintNdNumber of detections (link to detinfo table)meta.numberintnullabledetectID[2100000000/2190088281] Emission line or detection ID (detectid)meta.idFieldField identifier (3)meta.id;obs.fieldcharFaper[0.0003/20236]? Dust-corrected, OII line flux measured in elliptical galaxy aperture in 10^-17^erg/s/cm^2^ (flux_aper)1e-17mW.m**-2phot.flux;instr.fov;em.linedoublenullablee_Faper[0.06/109]? Faper uncertainty (flux_aper_err)1e-17mW.m**-2stat.error;phot.flux;em.linefloatnullablef_Faper[-1/1]? Flag on Faper (flag_aper) (4)meta.code;phot.flux;em.lineintnullableamaj[0.46/20.14]? Major axis of aperture ellipse of resolved OII galaxy defined by imaging (major)arcsecphys.angSizefloatnullablebmin[0.29/9.4]? Minor axis of aperture ellipse of resolved OII galaxy defined by imaging (minor)arcsecphys.angSizefloatnullablePA[-1.58/1.58]? Angle in aperture ellipse (theta)degpos.posAngdoublenullableLLya[1.8e+42/2.9e+44]? Ly{alpha} line luminosity in erg/s (lum_lya)1e-07Wphys.luminosity;em.line.Lyalphadoublenullablee_LLya[2.1e+41/5.3e+43]? LLya uncertainty (lum_lya_err)1e-07Wstat.error;phys.luminosity;em.line.LyalphadoublenullableLOII[7.6e+29/1.8e+44]? Best OII line luminosity in erg/s (lum_oii)1e-07Wphys.luminosity;em.linedoublenullablee_LOII[1.1e+29/1.6e+42]? LOII uncertainty (lum_oii_err)1e-07Wstat.error;phys.luminosity;em.linedoublenullableFLya[3.39/1030]? Ly{alpha} line flux in 10^-17^erg/s/cm^2^ (flux_lya)1e-17mW.m**-2phot.flux;em.line.Lyalphafloatnullablee_FLya[0.39/190]? FLya uncertainty (flux_lya_err)1e-17mW.m**-2stat.error;phot.flux;em.line.LyalphafloatnullableFOII[0.0003/20236]? Best OII line flux in 10^-17^erg/s/cm^2^ (flux_oii)1e-17mW.m**-2phot.flux;em.linedoublenullableapcor[0.04/0.997] Aperture correction applied to spectrum at 4500{AA}instr.paramfloatHETDEXHETDEX designation (JHHMMSS.ss+DDMMSS.s) (source_name)meta.id;meta.maincharprimaryJ/ApJ/943/177/detinfo*Detection info table (from hetdex_sc1_detinfo_v3.2.fits)HETDEXHETDEX designation (JHHMMSS.ss+DDMMSS.s) (source_name)meta.id;meta.maincharmagCpt[12.99/99.9]? Selected closest counterpart AB mag from imaging data (counterpart_mag)magphot.magfloatnullableq_zbest[0/0.95]? Confidence in zbest (best_pz)meta.code.qual;src.redshiftfloatnullablezdiag[-1.7e-06/3.9]? Best fit redshift from Diagnose (z_diagnose)src.redshiftdoublenullableyRaw[4/1029]? Y value on the CCD of the detection (ds9 y value) (y_raw)pos.cartesian.yintnullablexIFU[-24.15/24.15] X position in the ifu (x_ifu)arcsecpos.cartesian.x;posfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[2140000000000/2140300001775] Identifier (source_id)meta.idRA_ICRS[5.8/245.3] Source center right ascension (ICRS) (RA)degpos.eq.ra;meta.mainindexedDE_ICRS[-1.2/62.4] Source center declination (ICRS) (DEC)degpos.eq.dec;meta.mainindexedzHetdex[-2/4.2] HETDEX spectroscopic redshift (z_hetdex)src.redshiftdoublen_zHetdexHetdex spectroscopic redshift source (z_hetdex_src)meta.note;src.redshiftcharq_zHetdex[-2/1] 0 to 1 confidence HETDEX spectroscopic redshift source (z_hetdex_conf)meta.code.qual;src.redshiftfloatOTypeSource type (source_type) (1)src.classchardetectID[2100000000/2190088281]? Emission line or detection ID (detectid)meta.idnullablef_detectID[0/1] Flag on detectID (selected_det)meta.codeintn_detectIDDetection type: "line" or "continuum" (det_type)meta.note;spect.linecharLineIDLine identification at observed wavelength (wave) assuming redshift of zHetdex (line_id)meta.id;spect.linecharRADdegDetectID right ascension (ICRS) (RA_det)degpos.eq.raDEDdegDetectID declination (ICRS) (DEC_det)degpos.eq.decSep[3.2e-12/0.006]? Distance between detectid and the source center (src_separation)degpos.angDistancedoublenullableNdet[1/90]? Number of detections in the source group (n_members)meta.numberintnullablegmag[12.29/34.71] SDSS g-band AB magnitude measured in HETDEX spectrum (gmag)phot.mag;em.opt.BfloatAv[0.01/1.5] Applied dust correction in V band (Av)phys.absorption;em.opt.Vfloatebv[0.0039/0.53] Applied selective extinction (ebv)phot.color.excessfloatwave[3483.3/5522.6]? Central wavelength of line emission (wave)0.1nmem.wl.centraldoublenullablee_wave[0.03/11.1]? MCMC uncertainty in wave (wave_err)0.1nmstat.error;em.wl.centralfloatnullableFlux[3.3/9053]? Dust corrected line flux at "wave" in 10^-17^erg/cm^2^/s units (flux)1e-17W.m**-2phot.fluxdoublenullablee_Flux[0.3/2723]? MCMC uncertainty in Flux (flux_err)1e-17W.m**-2stat.error;phot.fluxdoublenullableFluxObs[3.2/3070]? Observed line flux in 10^-17^erg/cm^2^/s units (flux_obs)1e-17W.m**-2phot.flux;em.linedoublenullablee_FluxObs[0.3/796]? MCMC uncertainty in FluxObs (flux_obs_err)1e-17W.m**-2stat.error;phot.flux;em.linefloatnullableFaper[0.0003/20235]? Dust corrected, OII line flux measured in elliptical galaxy aperture in 10^-17^erg/cm^2^/s units (flux_aper)1e-17W.m**-2phot.flux;instr.fov;em.linedoublenullablee_Faper[0.06/109]? Faper uncertainty (flux_aper_err)1e-17W.m**-2stat.error;phot.flux;em.linefloatnullableFaperObs[-9364/19739]? OII line flux measured in elliptical aperture in 10^-17^erg/cm^2^/s units (flux_aper_obs)1e-17W.m**-2phot.flux;instr.fov;em.linedoublenullablee_FaperObs[0.05/106]? FaperObs uncertainty (flux_aper_obs_err)1e-17W.m**-2stat.error;phot.flux;em.linefloatnullablef_Faper[-1/1]? Flag on Faper (flag_aper)meta.code;phot.flux;em.lineintnullablesigma[/50]? sigma linewidth in gaussian line fit in {AA} (sigma)0.1nmspect.line.widthfloatnullablee_sigma[/18]? MCMC uncertainty in sigma (sigma_err)0.1nmstat.error;spect.line.widthfloatnullableFcont[-15.8/801]? Local fitted observed continuum in 10^-17^erg/{AA}/cm^2^/s (continuum)1e-17cW.m**-2.nm**-1phot.flux;spect.continuumdoublenullablee_Fcont[0.01/44]? MCMC uncertainty in Fcont (continuum_err)1e-17cW.m**-2.nm**-1stat.error;phot.flux;spect.continuumfloatnullableFcontObs[-11.3/749]? Local fitted observed continuum (continuum_obs)1e-17cW.m**-2.nm**-1phot.flux;spect.continuumdoublenullablee_FcontObs[0.01/11]? MCMC uncertainty in FcontObs (continuum_obs_err)1e-17cW.m**-2.nm**-1stat.error;phot.flux;spect.continuumfloatnullableS/N[5.5/199]? Signal-to-noise for line emission (sn)stat.snrfloatnullablee_S/N[0.3/52]? MCMC uncertainty in S/N (sn_err)stat.error;stat.snrfloatnullablechi2[0.02/5.4]? Reduced {chi}^2^ quality of line fit (chi2)stat.fit.chi2;em.linefloatnullablee_chi2[0.1/0.8]? MCMC uncertainty in chi2 (chi2_err)stat.error;stat.fit.chi2;em.linefloatnullableFnoiseObs[0.6/141]? Observed 1 sigma flux sensitivity in 10^-17^erg/cm^2^/s (flux_noise_1sigma_obs)1e-17W.m**-2phot.flux;instr.sensitivityfloatnullableFnoise[0.6/149]? Dust corrected 1 sigma flux sensitivity in 10^-17^erg/cm^2^/s (flux_noise_1sigma)1e-17W.m**-2phot.flux;instr.sensitivityfloatnullableapcor[0.04/0.997] Aperture correction applied to spectrum at 4500{AA} (apcor)instr.paramfloate_magCpt[0/0.7]? magCpt uncertainty (counterpart_mag_err)magstat.error;phot.magdoublenullableDistCpt[0.0008/6.3]? Distance to closest counterpart (counterpart_dist)pos.angDistancedoublenullableplyaCl[-1/1]? 0 to 1 on likelihood line is Lya (plya_classification)meta.codefloatnullablezbest[-1/3.7]? ELiXeR best redshift (best_z)src.redshiftdoublenullablediagClDiagnose classification (cls_diagnose) (3)src.classcharStTypeDiagnose spectral type classification for stars (stellartype)src.spTypecharAGN[-1/1] AGN flag (agn_flag) (4)meta.codefloatGroupID[-1/214024059]? ID for 3D clustering at common ra, dec, wave (wave_group_id)meta.idlongnullableamajGroup[0/0.003]? Semi-major axis from 3D FOF clustering (wave_group_a)degphys.angSize.smajAxisdoublenullablebminGroup[0/0.001]? Semi-minor axis from 3D FOF clustering (wave_group_b)degphys.angSize.sminAxisdoublenullablePAGroup[-90/90]? Positional angle from 3D FOF clustering (wave_group_pa)degpos.posAng;phys.angSizefloatnullableRAGdeg? Mean right ascension (ICRS) from 3D FOF clustering (wave_group_ra)degpos.eq.ranullableDEGdeg? Mean declination (ICRS) from 3D FOF clustering (wave_group_dec)degpos.eq.decnullablelamGroup[3501.4/5520.7]? Mean wavelength from 3D FOF clustering (wave_group_wave)em.wl;stat.meandoublenullableFWHM[1.2/3.2] Measured seeing of the observation (fwhm)arcsecspect.line.widthdoublesptput[0.08/0.6] Relative spectral response at 4540 assuming a 360s nominal exposure (throughput)spect.indexfloatshotid[20170103002/20200626020]? Integer represent observation ID: int (date+obsid) (shotid)meta.id;obsnullableFieldField identifier ("dex-spring", "dex-fall", "cosmos", "goods-n")meta.id;obs.fieldcharobsid[2/116]? Observation number (obsid)meta.id;obsintnullablemultFrameString identifier for the ifuslot/specid/ifuid/amp combination (multiframe)instr.setupcharfiberIDString identifier for the highest weight fiber (fiber_id)meta.notecharWeight