J/ApJ/943/177 HETDEX Public Source Catalog (Version 3.2) (Mentuch Cooper+, 2023)
HETDEX Public Source Catalog 1: 220K sources including over 50K Lyα
emitters from an untargeted wide-area spectroscopic survey.
Mentuch 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 collaboration
<Astrophys. J., 943, 177 (2023)>
=2023ApJ...943..177M 2023ApJ...943..177M
ADC_Keywords: Galaxies, spectra; Spectroscopy; Surveys; Redshifts;
Active gal. nuclei; Magnitudes; Optical; Galaxies, radius
Keywords: Redshift surveys ; Catalogs ; Emission line galaxies ;
Lyman-alpha galaxies
Abstract:
We 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
Lyα-emitting galaxies over a total target area of 540deg2. The
catalog comes from contiguous fiber spectra coverage of 25deg2 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 Lyα-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
Lyα 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
Δz<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.
Description:
The data on which these catalogs are based were all obtained in the
Hobby-Eberly Telescope Dark Energy Experiment (HETDEX;
Gebhardt+ 2021ApJ...923..217G 2021ApJ...923..217G) survey observations using the Integral
Field Units (IFUs) of the Visible IFU Replicable Unit Spectrograph
(VIRUS) on the 10m Hobby-Eberly Telescope (HET) which can obtain
∼35000 spectra simultaneously, each covering the wavelength range
3500Å≲λ≲5500Å with spectral resolving power 750<R<950.
Survey data for this catalog release come from the internal HETDEX
Data Release 2 (HDR2). This release consists of 2797 observations
obtained starting in 2017 January and ending on 2020 June 26.
Acknowledging HETDEX in publications:
See HOW TO CITE HETDEX on https://hetdex.org/papers/
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
sources.dat 411 232650 *Source observation table
(from hetdexsc1v3.2.ecsv)
detinfo.dat 886 297261 *Detection info table
(from hetdexsc1detinfo_v3.2.fits)
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Note on sources.dat: Source information for each observation of a unique
astronomical source. One row per source observation.
Note on detinfo.dat: One row per line or continuum detection. Bright sources
can be comprised of multiple line or continuum emission. This catalog
provides specific detection information such as line parameter info
(S/N, line flux, line width).
--------------------------------------------------------------------------------
Description of file:
hetdexsc1spec_v3.2.fits contains the spectral array data.
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HDU INFO:
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No. Name Ver Type Cards Dimensions Format
0 PRIMARY 1 PrimaryHDU 4 ()
1 INFO 1 BinTableHDU 88 232650R x 30C
2 SPEC 1 ImageHDU 10 (1036, 232650) float32
3 SPEC_ERR 1 ImageHDU 9 (1036, 232650) float32
4 SPEC_OBS 1 ImageHDU 10 (1036, 232650) float32
5 SPECOBSERR 1 ImageHDU 9 (1036, 232650) float32
6 APCOR 1 ImageHDU 8 (1036, 232650) float32
7 WAVELENGTH 1 ImageHDU 8 (1036,) float64
-----------------------------------------------------------------------
NOTE: HDU1-INFO is the same as table sources.dat (hetdexsc1v3.2.ecsv)
-----------------------------------------------------------------------
See also:
II/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 : Lyα 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 Lyα-emitting candidates (Spinoso+, 2020)
J/ApJ/920/122 : Candidate Lyα-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 page
Byte-by-byte Description of file: sources.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 A6 --- --- [HETDEX]
8- 26 A19 --- HETDEX HETDEX designation (JHHMMSS.ss+DDMMSS.s)
(source_name)
28- 40 I13 --- ID [2140000000000/2140300001775] HETDEX
source identifier (source_id)
42- 52 I11 --- shotID [20170103002/20200626020] Integer
represent observation ID:
int(date+obsid) (shotid)
54- 64 F11.7 deg RAdeg [5.8/245.3] Right ascension (ICRS) (RA)
66- 79 E14.11 deg DEdeg [-1.2/62.4] Declination (ICRS) (DEC)
81- 90 F10.7 mag gmag [12.29/34.71] SDSS g-band AB magnitude
measured in HETDEX spectrum (gHETDEX)
92- 103 F12.10 mag Av [0.01/1.44] Applied dust correction in
the V band
105- 118 E14.11 --- zHetdex [-2/4.165] HETDEX spectroscopic redshift
120- 127 A8 --- n_zHetdex HETDEX spectroscopic redshift source
(zhetdexsrc) (1)
129- 142 E14.12 --- q_zHetdex [-2/1] 0 to 1 confidence HETDEX
spectroscopic redshift source
(zhetdexconf)
144- 147 A4 --- OType Object type (source_type) (2)
149- 150 I2 --- Ndet [1/90] Number of detections in the source
group (n_members)
152- 161 I10 --- detectID [2100000000/2190088281] Emission line or
detection ID (detectid)
163- 172 A10 --- Field Field identifier (3)
174- 189 F16.10 10-17mW/m2 Faper [0.0003/20236]? Dust-corrected, OII line
flux measured in elliptical galaxy
aperture in 10-17erg/s/cm2
(flux_aper)
191- 203 F13.9 10-17mW/m2 e_Faper [0.06/109]? Faper uncertainty
(fluxapererr)
205- 206 I2 --- f_Faper [-1/1]? Flag on Faper (flag_aper) (4)
208- 218 F11.8 arcsec amaj [0.46/20.14]? Major axis of aperture
ellipse of resolved OII galaxy defined by
imaging (major)
220- 229 F10.8 arcsec bmin [0.29/9.4]? Minor axis of aperture
ellipse of resolved OII galaxy defined by
imaging (minor)
231- 244 E14.11 deg PA [-1.58/1.58]? Angle in aperture ellipse
(theta)
246- 267 E22.17 10-7W LLya [1.8e+42/2.9e+44]? Lyα line
luminosity in erg/s (lum_lya)
269- 290 E22.17 10-7W e_LLya [2.1e+41/5.3e+43]? LLya uncertainty
(lumlyaerr)
292- 313 E22.17 10-7W LOII [7.6e+29/1.8e+44]? Best OII line
luminosity in erg/s (lum_oii)
315- 336 E22.17 10-7W e_LOII [1.1e+29/1.6e+42]? LOII uncertainty
(lumoiierr)
338- 349 F12.7 10-17mW/m2 FLya [3.39/1030]? Lyα line flux in
10-17erg/s/cm2 (flux_lya)
351- 362 F12.8 10-17mW/m2 e_FLya [0.39/190]? FLya uncertainty
(fluxlyaerr)
364- 379 F16.10 10-17mW/m2 FOII [0.0003/20236]? Best OII line flux in
10-17erg/s/cm2 (flux_oii)
381- 392 F12.8 10-17mW/m2 e_FOII [0.1/109.2]? FOII uncertainty
(fluxoiierr)
394- 399 F6.2 --- S/N [5.5/123]? Signal-to-noise for line
emission (sn)
401- 411 F11.9 --- apcor [0.04/0.997] Aperture correction applied
to spectrum at 4500Å
--------------------------------------------------------------------------------
Note (1): Source as follows:
diagnose = Diagnose, a software package developed for the HET VIRUS
Parallel Survey (HETVIPS; G. Zeimann+ 2023, in preparation),
see Section 4.1.1.
elixer = Emission Line eXplorer (ELiXer), see Section 4.1.2.
Liu+2022 = AGN catalog (Liu+ 2022ApJS..261...24L 2022ApJS..261...24L), see Section 4.1.3.
Note (2): Source type as follows:
oii = [OII]-emitting galaxies at z<0.5 (129511 occurrences)
lae = Lyα-emitting galaxy (52681 occurrences)
lzg = low-redshift (z<0.5) galaxies without emission lines (5399 occurrences)
agn = active galactic nuclei (4971 occurrences)
star = star (40088 occurrences)
Note (3): Field as follows:
cosmos = COSMOS, ∼2deg2 (2447 occurrences)
dex-fall = fall field covers 150deg2 along the celestial equator
(56251 occurrences)
dex-spring = spring field which covers 390deg2 of high decl.
(δ∼51°) sky (172831 occurrences)
goods-n = GOODS-N, ∼0.09deg2 (1121 occurrences)
See Gebhardt+ 2021ApJ...923..217G 2021ApJ...923..217G for full details on field selection.
Note (4): Flag as follows:
1 = OII aperture line flux used
0 = PSF-line flux used from "flux" column
-1 = PSF-line flux used from "flux" column
--------------------------------------------------------------------------------
Byte-by-byte Description of file: detinfo.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 I13 --- ID [2140000000000/2140300001775]
Identifier (source_id)
15- 20 A6 --- --- [HETDEX]
22- 40 A19 --- HETDEX HETDEX designation
(JHHMMSS.ss+DDMMSS.s) (source_name)
42- 50 F9.5 deg RAdeg [5.8/245.3] Source center right
ascension (ICRS) (RA)
52- 61 F10.6 deg DEdeg [-1.2/62.4] Source center
declination (ICRS) (DEC)
63- 71 F9.6 --- zHetdex [-2/4.2] HETDEX spectroscopic
redshift (z_hetdex)
73- 80 A8 --- n_zHetdex Hetdex spectroscopic redshift source
(zhetdexsrc)
82- 90 F9.6 --- q_zHetdex [-2/1] 0 to 1 confidence HETDEX
spectroscopic redshift source
(zhetdexconf)
92- 95 A4 --- OType Source type (source_type) (1)
97-106 I10 --- detectID [2100000000/2190088281]? Emission
line or detection ID (detectid)
108 I1 --- f_detectID [0/1] Flag on detectID (selected_det)
110-113 A4 --- n_detectID Detection type: "line" or
"continuum" (det_type)
115-118 A4 --- LineID Line identification at observed
wavelength (wave) assuming redshift
of zHetdex (line_id)
120-128 F9.5 deg RADdeg DetectID right ascension (ICRS)
(RA_det)
130-139 F10.6 deg DEDdeg DetectID declination (ICRS) (DEC_det)
141-152 E12.6 deg Sep [3.2e-12/0.006]?=0 Distance between
detectid and the source center
(src_separation)
154-155 I2 --- Ndet [1/90]? Number of detections in the
source group (n_members)
157-163 F7.4 --- e_gmag [12.29/34.71]? MCMC uncertainty in
gmag (gmag_err)
165-171 F7.4 --- gmag [12.29/34.71] SDSS g-band AB
magnitude measured in HETDEX
spectrum (gmag)
173-180 F8.6 --- Av [0.01/1.5] Applied dust correction
in V band (Av)
182-189 F8.6 --- ebv [0.0039/0.53] Applied selective
extinction (ebv)
191-202 E12.6 0.1nm wave [3483.3/5522.6]?=0 Central
wavelength of line emission (wave)
204-212 F9.6 0.1nm e_wave [0.03/11.1]?=0 MCMC uncertainty in
wave (wave_err)
214-225 E12.6 10-17W/m2 Flux [3.3/9053]? Dust corrected line flux
at "wave" in 10-17erg/cm2/s
units (flux)
227-238 E12.6 10-17W/m2 e_Flux [0.3/2723]? MCMC uncertainty in Flux
(flux_err)
240-251 E12.6 10-17W/m2 FluxObs [3.2/3070]? Observed line flux in
10-17erg/cm2/s units (flux_obs)
253-262 F10.6 10-17W/m2 e_FluxObs [0.3/796]? MCMC uncertainty in
FluxObs (fluxobserr)
264-275 E12.6 10-17W/m2 Faper [0.0003/20235]? Dust corrected, OII
line flux measured in elliptical
galaxy aperture in
10-17erg/cm2/s units (flux_aper)
277-286 F10.6 10-17W/m2 e_Faper [0.06/109]? Faper uncertainty
(fluxapererr)
288-299 E12.6 10-17W/m2 FaperObs [-9364/19739]? OII line flux
measured in elliptical aperture in
10-17erg/cm2/s units
(fluxaperobs)
301-310 F10.6 10-17W/m2 e_FaperObs [0.05/106]? FaperObs uncertainty
(fluxaperobs_err)
312-313 I2 --- f_Faper [-1/1]? Flag on Faper (flag_aper)
315-323 F9.6 0.1nm sigma [/50]?=0 sigma linewidth in gaussian
line fit in Å (sigma)
325-333 F9.6 0.1nm e_sigma [/18]?=0 MCMC uncertainty in sigma
(sigma_err)
335-345 F11.6 10-17cW/m2/nm Fcont [-15.8/801]? Local fitted observed
continuum in 10-17erg/Å/cm2/s
(continuum)
347-355 F9.6 10-17cW/m2/nm e_Fcont [0.01/44]? MCMC uncertainty in Fcont
(continuum_err)
357-367 F11.6 10-17cW/m2/nm FcontObs [-11.3/749]? Local fitted observed
continuum (continuum_obs)
369-377 F9.6 10-17cW/m2/nm e_FcontObs [0.01/11]? MCMC uncertainty in
FcontObs (continuumobserr)
379-384 F6.2 --- S/N [5.5/199]? Signal-to-noise for line
emission (sn)
386-394 F9.6 --- e_S/N [0.3/52]?=0 MCMC uncertainty in S/N
(sn_err)
396-403 F8.6 --- chi2 [0.02/5.4]?=0 Reduced χ2 quality
of line fit (chi2)
405-412 F8.6 --- e_chi2 [0.1/0.8]?=0 MCMC uncertainty in chi2
(chi2_err)
414-423 F10.6 10-17W/m2 FnoiseObs [0.6/141]? Observed 1 sigma flux
sensitivity in 10-17erg/cm2/s
(fluxnoise1sigma_obs)
425-434 F10.6 10-17W/m2 Fnoise [0.6/149]? Dust corrected 1 sigma
flux sensitivity in
10-17erg/cm2/s
(fluxnoise1sigma)
436-443 F8.6 --- apcor [0.04/0.997] Aperture correction
applied to spectrum at 4500Å
(apcor)
445-451 F7.4 mag magCpt [12.99/99.9]? Selected closest
counterpart AB mag from imaging data
(counterpart_mag)
453-460 F8.6 mag e_magCpt [0/0.7]? magCpt uncertainty
(counterpartmagerr)
462-469 F8.6 --- DistCpt [0.0008/6.3]? Distance to closest
counterpart (counterpart_dist)
471-486 A16 --- CatCtp Image catalog source of counterpart
(counterpartcatalogname) (2)
488-492 A5 --- FiltCtp Image filter of counterpart (u,g,r,i,
z,y,f606w) (counterpartfiltername)
494-502 F9.6 --- plyaCl [-1/1]? 0 to 1 on likelihood line is
Lya (plya_classification)
504-512 F9.6 --- zbest [-1/3.7]? ELiXeR best redshift
(best_z)
514-521 F8.6 --- q_zbest [0/0.95]? Confidence in zbest
(best_pz)
523-534 E12.6 --- zdiag [-1.7e-06/3.9]? Best fit redshift
from Diagnose (z_diagnose)
536-542 A7 --- diagCl Diagnose classification
(cls_diagnose) (3)
544 A1 --- StType Diagnose spectral type
classification for stars
(stellartype)
546-554 F9.6 --- AGN [-1/1] AGN flag (agn_flag) (4)
556-564 I9 --- GroupID [-1/214024059]? ID for 3D clustering
at common ra, dec, wave
(wavegroupid)
566-577 E12.6 deg amajGroup [0/0.003]? Semi-major axis from 3D
FOF clustering (wavegroupa)
579-590 E12.6 deg bminGroup [0/0.001]? Semi-minor axis from 3D
FOF clustering (wavegroupb)
592-601 F10.6 deg PAGroup [-90/90]? Positional angle from 3D
FOF clustering (wavegrouppa)
603-611 F9.5 deg RAGdeg ? Mean right ascension (ICRS) from
3D FOF clustering (wavegroupra)
613-622 F10.6 deg DEGdeg ? Mean declination (ICRS) from 3D
FOF clustering (wavegroupdec)
624-635 E12.6 --- lamGroup [3501.4/5520.7]? Mean wavelength
from 3D FOF clustering
(wavegroupwave)
637-643 F7.5 arcsec FWHM [1.2/3.2] Measured seeing of the
observation (fwhm)
645-650 F6.4 --- sptput [0.08/0.6] Relative spectral
response at 4540 assuming a 360s
nominal exposure (throughput)
652-662 I11 --- shotid [20170103002/20200626020]? Integer
represent observation ID: int
(date+obsid) (shotid)
664-673 A10 --- Field Field identifier ("dex-spring",
"dex-fall", "cosmos", "goods-n")
675-684 A10 "Y/M/D" Date Date of observation (UT) (date)
686-688 I3 --- obsid [2/116]? Observation number (obsid)
690-709 A20 --- multFrame String identifier for the
ifuslot/specid/ifuid/amp
combination (multiframe)
711-748 A38 --- fiberID String identifier for the highest
weight fiber (fiber_id)
750-755 F6.4 --- Weight [0.018/0.6] Flux weight of the
highest weight fiber (weight)
757-760 I4 --- xRaw [6/1029]? X value on the CCD of the
detection (ds9 x value) (x_raw)
762-765 I4 --- yRaw [4/1029]? Y value on the CCD of the
detection (ds9 y value) (y_raw)
767-776 F10.6 arcsec xIFU [-24.15/24.15] X position in the ifu
(x_ifu)
778-787 F10.6 arcsec yIFU [-24.24/24.24] Y position in the ifu
(y_ifu)
789-797 F9.5 deg RAAdeg ? Right ascension of aperture center
of imaging counterpart (ra_aper)
799-808 F10.6 deg DEAdeg ? Declination of aperture center of
imaging counterpart (dec_aper)
810-825 A16 --- CatAp Imaging source for measuring OII
resolved apertures
(catalognameaper) (2)
827-831 A5 --- FiltAp Filter of Imaging used for measuring
OII resolved apertures
(filternameaper)
833-840 F8.6 arcsec DistAp [0.0009/5.6]? Distance between
aperture center and detectid
position (dist_aper)
842-848 F7.4 mag magAp [13.14/27.25]? Photometric AB
magnitude in aperture in imaging
source (mag_aper)
850-857 F8.6 mag e_magAp [2.7e-05/0.4]? magAp uncertainty
(magapererr)
859-867 F9.6 arcsec maj [0.46/20.2]? Major axis of aperture
ellipse of resolved OII galaxy
defined by imaging (major)
869-876 F8.6 arcsec min [0.29/9.4]? Minor axis of aperture
ellipse of resolved OII galaxy
defined by imaging (minor)
878-886 F9.6 deg theta [-1.6/1.6]? Angle in aperture
ellipse (theta)
--------------------------------------------------------------------------------
Note (1): Source type as follows:
oii = [OII]-emitting galaxies at z<0.5 (178469 occurrences)
lae = Lyα-emitting galaxy (54114 occurrences)
lzg = low-redshift (z<0.5) galaxies without emission lines (7067 occurrences)
agn = active galactic nuclei (12649 occurrences)
star = star (44962 occurrences)
Note (2): Catalog as follows:
HyperSuprimeCam = 161108 / 64971 occurrences
HyperSuprimeCam_ = 24511 / 20114 occurrences
DECAM/SHELA = 44086 / 13206 occurrences
DECaLS = 25370 / 7617 occurrences
MOSAIC/KPNO = 20376 / 9556 occurrences
MegaPrime/CFHTLS = 3432 / 8175 occurrences
DECAM/COSMOS = 2877 / 12 occurrences
GOODS-N = 1435 / 550 occurrences
CANDELS/EGS = 894 / 440 occurrences
Number of occurrences for image catalog source of counterparts vs
imaging source for measuring OII resolved apertures.
See the details of the 11 ELiXer imaging catalogs in Section 2.1. of
Davis+ 2023ApJ...946...86D 2023ApJ...946...86D.
Note (3): Classification as follows:
0.0 = NAN (59 occurrences)
GALAXY = 170695 occurrences
UNKNOWN = 73047 occurrences
STAR = 44415 occurrences
QSO = 9045 occurrences
Note (4): AGN code as follows:
-1.0 = not an AGN (284612 occurrences)
0.0 = broad-line source but not confirmed AGN (2408 occurrences)
3.0 = confident AGN and zHetdex (10241 occurrences)
--------------------------------------------------------------------------------
History:
Downloaded from https://hetdex.org/data-results/ -
hetdexsc1v3.2.ecsv for the source observation table (see Table 3)
hetdexsc1spec_v3.2.fits for the SPECTRA arrays
hetdexsc1detinfo_v3.2.fits for the Detection Information Table
(see Table 6)
(End) Emmanuelle Perret [CDS] 15-Jan-2025