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J/MNRAS/462/3146           Herschel-ATLAS DR1                  (Valiante+, 2016)

The Herschel-ATLAS data release 1 - I. Maps, catalogues and number counts. Valiante E., Smith M.W.L., Eales S., Maddox S.J., Ibar E., Hopwood R., Dunne L., Cigan P.J., Dye S., Pascale E., Rigby E.E., Bourne N., Furlanetto C., Ivison R.J. <Mon. Not. R. Astron. Soc. 462, 3146 (2016)> =2016MNRAS.462.3146V (SIMBAD/NED BibCode)
ADC_Keywords: Surveys ; Galaxy catalogs ; Photometry, millimetric/submm Keywords: methods: data analysis - catalogues - surveys - galaxies: statistics - cosmology:e observations - submillimetre: galaxies Abstract: We present the first major data release of the largest single key-project in area carried out in open time with the Herschel Space Observatory. The Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) is a survey of 600 deg2 in five photometric bands - 100, 160, 250, 350 and 500 microns - with the Photoconductor Array Camera and Spectrometer and Spectral and Photometric Imaging Receiver (SPIRE) cameras. In this paper and the companion (Bourne at al., 2016MNRAS.462.1714B), we present the survey of three fields on the celestial equator, covering a total area of 161.6 deg2 and previously observed in the Galaxy and Mass Assembly (GAMA) spectroscopic survey. This paper describes the Herschel images and catalogues of the sources detected on the SPIRE 250 micron images. The 1 sigma noise for source detection, including both confusion and instrumental noise, is 7.4, 9.4 and 10.2mJy at 250, 350 and 500 microns. Our catalogue includes 120 230 sources in total, with 113 995, 46 209 and 11 011 sources detected at >4 sigma at 250, 350 and 500 microns. The catalogue contains detections at >3σ at 100 and 160 microns for 4650 and 5685 sources, and the typical noise at these wavelengths is 44 and 49mJy. We include estimates of the completeness of the survey and of the effects of flux bias and also describe a novel method for determining the true source counts. The H-ATLAS source counts are very similar to the source counts from the deeper HerMES survey at 250 and 350 microns, with a small difference at 500 microns. Description: The data release main catalogue (HATLASDR1CATALOGUE.FITS, hdr1cat.dat) contains only the 'best' candidate ID to each SPIRE source (where available). Most users will find in this catalogue everything they will need for their science purposes. A second catalogue is also available (HATLASDR1CATALOGUE_ALLIDS.FITS, hdr1all.dat), which contains all possible counterparts within the search radius of each SPIRE source. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file hdr1cat.dat 1133 120230 HATLAS DR1 Catalogue hdr1all.dat 1133 165514 HATLAS DR1 Catalogue all IDs
See also: VIII/103 : Herschel Multi-tiered Extragalactic Survey (Oliver+, 2012) J/MNRAS/415/2336 : Herschel-ATLAS Science Demonstration Catalog (Rigby+, 2011) Byte-by-byte Description of file: hdr1cat.dat hdr1all.dat
Bytes Format Units Label Explanations
1- 7 A7 --- --- [HATLAS_] 8- 23 A16 --- HATLAS HATLAS IAU name, JHHMMSS.s+DDMMSS (HATLASIAUID) 25- 38 A14 --- IDName HATLAS short name, GNN.DR1.NNNNNN (IDNAME) 40- 49 F10.6 deg RAdeg Right ascension (J2000) (RA) 51- 59 E9.6 deg DEdeg Declination (J2000) (DEC) 61- 68 F8.6 Jy F250 Point source 250um flux from MF (F250) 70- 91 E22.18 Jy F350 Point source 350um flux from MF (F350) 93-114 E22.18 Jy F500 Point source 500um flux from MF (F500) 116-123 F8.6 Jy e_F250 250um 1 sigma flux error (E250) (1) 125-132 F8.6 Jy e_F350 350um 1 sigma flux error (E350) (1) 134-141 F8.6 Jy e_F500 500um 1 sigma flux error (E500) (1) 143-163 F21.18 Jy F250B 250um best flux (F250BEST) 165-172 F8.6 Jy e_F250B 250um 1 sigma best flux error (E250BEST) 174-181 F8.4 arcsec a_F250B ?=-99 250um aperture radius (AP250) (6) 183-204 E22.17 Jy F350B 350um best flux (F350BEST) 206-213 F8.6 Jy e_F350B 350um 1 sigma best flux error (E350BEST) 215-222 F8.4 arcsec a_F350B ?=-99 350um aperture radius (AP350) (6) 224-245 E22.17 Jy F500B 500um best flux (F500BEST) 247-254 F8.6 Jy e_F500B 500um 1 sigma best flux error (E500BEST) 256-263 F8.4 arcsec a_F500B ?=-99 500um aperture radius (AP500) (6) 265-286 E22.17 Jy F100B ?=-1 100um best flux from aperture photometry (F100BEST) 288-308 F21.18 Jy e_F100B ?=-1 100um 1 sigma best flux error on aperture photometry flux (E100BEST) 310-317 F8.4 arcsec a_F100B ?=-99 100um aperture radius (AP100) (6) 319-340 E22.17 Jy F160B ?=-1 160um best flux from aperture photometry (F160BEST) 342-362 F21.18 Jy e_F160B ?=-1 160um 1 sigma best flux error on aperture photometry flux (E160BEST) 364-371 F8.4 arcsec a_F160B ?=-99 160um aperture radius (AP160) (6) 373-377 F5.1 arcsec ApRmin ?=-99 Minor semi-axis of customised aperture (AP_RMIN) 379-386 F8.4 deg ApPA ?=-99 Positional angle of customised aperture (AP_PA) 388-401 F14.10 deg RAOdeg position of the optical ID from either SDSS-II (DR7) or SDSS-III (DR9) (OPTICALRA) 403-415 E13.8 deg DEOdeg position of the optical ID from either SDSS-II (DR7) or SDSS-III (DR9) (OPTICALDEC) 417-428 F12.8 arcsec Sep ?=-99 SPIRE-optical separation (SEPARATION_ARCSEC) 430-451 E22.18 --- Like Likelihood from automated method (LIKELIHOOD) 453-474 E22.18 --- Rel ?=-99 Reliability if ≥1 or <0 this has been fixed manually (ID_FLAG=R or M) (RELIABILITY) 476-478 I3 --- flagGSQ [0/3]?=-99 CQS flag (GSQ_FLAG) (2) 482-484 A3 --- flagID [MRV ] Flag from eyeballing (ID_FLAG) (3) 486-505 I20 --- SDSS SDSS-II (DR7) or SDSS-III (DR9) ID if present (SDSS_OBJID) 507-525 F19.15 mag rmag ?=-99 SDSS r-band model magnitude (MODELMAG_R) 527-547 E21.19 mag e_rmag ?=-99 Error on SDSS r-band model magnitude (MODELMAGERR_R) 549-570 F22.18 mag ExtR ?=-99 Extinction in R-band (EXTINCTION_R) 572-593 F22.18 arcsec IsoA ?=-99 SDSS optical diameter (ISOARARCSEC) 595-603 A9 --- n_zph Bands used to derived the zph (DGBPHOTOZBANDSSTRING) 605-610 I6 --- f_zph [0/511]?=-99 Integer showing which bands are present for deriving zph (u=1, g=2, r=4, ... H=128, K=256) (DGBPHOTOZBANDSINT) 612-617 I6 --- o_zph [0/511]?=-99 Number of bands used in deriving zph (DGBPHOTOZBANDSCOUNT) 619-628 E10.7 --- zph ?=-99 Photometric redshift from annz method (DGBANNZPHOTOZ) (4) 630-641 F12.8 --- e_zph ?=-99 Error on ANNzph (DGBANNZPHOTOZERR) 643-655 E13.8 --- zsp ?=-99 Spectroscopic redshift (Z_SPEC) 657-662 I6 --- q_zsp [0/5]?=-99 Spectroscopic redshift quality flag, ≥3 is OK to use (Z_QUAL) 664-669 I6 --- r_zsp ?=-99 Reference fo zsp (Z_SOURCE) (5) 671-681 I11 --- GAMA ?=-99 GAMA-II ID - ONLY IF present in InputCatv07 (CATAID_GAMA) 683-696 E14.7 Jy FFUV ?=-99 Extinction corrected GALEX FUV flux (FUVFLUXGAMA) 698-710 E13.7 Jy e_FFUV ?=-99 Error in extinction corrected GALEX FUV flux (FUVFLUXERRGAMA) 712-724 E13.7 Jy FNUV ?=-99 Extinction corrected GALEX NUV flux (NUVFLUXGAMA) 726-738 E13.7 Jy e_FNUV ?=-99 Error in extinction corrected GALEX NUV flux (NUVFLUXERRGAMA) 740-753 E14.7 Jy FU ?=-99 Extinction corrected SDSS u band flux (UFLUXGAMA) 755-767 E13.8 Jy e_FU ?=-99 Error in extinction corrected SDSS u band flux (UFLUXERRGAMA) 769-781 E13.8 Jy FG ?=-99 Extinction corrected SDSS g band flux (GFLUXGAMA) 783-795 E13.8 Jy e_FG ?=-99 Error in extinction corrected SDSS g band flux (GFLUXERRGAMA) 797-810 E14.8 Jy FR ?=-99 Extinction corrected SDSS r band flux (RFLUXGAMA) 812-824 E13.8 Jy e_FR ?=-99 Error in extinction corrected SDSS r band flux (RFLUXERRGAMA) 826-838 E13.8 Jy FI ?=-99 Extinction corrected SDSS i band flux (IFLUXGAMA) 840-852 E13.8 Jy e_FI ?=-99 Error in extinction corrected SDSS i band flux (IFLUXERRGAMA) 854-867 E14.8 Jy FZ ?=-99 Extinction corrected SDSS z band flux (ZFLUXGAMA) 869-881 E13.8 Jy e_FZ ?=-99 Error in extinction corrected SDSS z band flux (ZFLUXERRGAMA) 883-895 E13.8 Jy FX ?=-99 Extinction corrected VISTA Z band flux (XFLUXGAMA) 897-909 E13.8 Jy e_FX ?=-99 Error in extinction corrected VISTA Z band flux (XFLUXERRGAMA) 911-923 E13.8 Jy FY ?=-99 Extinction corrected VISTA Y band flux (YFLUXGAMA) 925-937 E13.8 Jy e_FY ?=-99 Error in extinction corrected VISTA Y band flux (YFLUXERRGAMA) 939-951 E13.8 Jy FJ ?=-99 Extinction corrected VISTA J band flux (JFLUXGAMA) 953-965 E13.8 Jy e_FJ ?=-99 Error in extinction corrected VISTA J band flux (JFLUXERRGAMA) 967-980 E14.8 Jy FH ?=-99 Extinction corrected VISTA H band flux (HFLUXGAMA) 982-994 E13.8 Jy e_FH ?=-99 Error in extinction corrected VISTA H band flux (HFLUXERRGAMA) 996-1008 E13.8 Jy FK ?=-99 Extinction corrected VISTA Ks band flux (KFLUXGAMA) 1010-1022 E13.8 Jy e_FK ?=-99 Error in extinction corrected VISTA Ks band flux (KFLUXERRGAMA) 1024-1036 E13.8 Jy FW1 ?=-99 WISE band 1 flux (W1FLUXGAMA) 1038-1050 E13.8 Jy e_FW1 ?=-99 Error in WISE band 1 flux (W1FLUXERRGAMA) 1052-1064 E13.8 Jy FW2 ?=-99 WISE band 2 flux (W2FLUXGAMA) 1066-1078 E13.8 Jy e_FW2 ?=-99 Error in WISE band 2 flux (W2FLUXERRGAMA) 1080-1091 E12.8 Jy FW3 ?=-99 WISE band 3 flux (W3FLUXGAMA) 1093-1105 E13.8 Jy e_FW3 ?=-99 Error in WISE band 3 flux (W3FLUXERRGAMA) 1107-1120 F14.10 Jy FW4 ?=-99 WISE band 4 flux (W4FLUXGAMA) 1122-1133 E12.8 Jy e_FW4 ?=-99 Error in WISE band 4 flux (W4FLUXERRGAMA)
Note (1): Error assuming confusion noise variable with flux. Note (2): CQS flag as follows: 0 = galaxy 1 = star 2 = quasar 3 = quasar candidate based on colour selection Note (3): Note on flagID as follows: R = Resolved SPIRE source where the counterpart was missed or appeared unreliable due to a large optical-SPIRE separation. The reliability was fixed manually after visual inspection (Rnew=Rformula+1) to ensure the ID meets the reliability cut. M = SPIRE source with merger ID (s), confirmed by z_spec, which caused the reliability to be underestimated. The reliability was fixed manually after visual inspection (Rnew=Rformula+1) thus ensuring the ID meets the reliability cut. Note that in a small number of cases two 'reliable' IDs were given to a single SPIRE source where it was obvious that the emission was roughly equally shared between the two merging galaxies. V = Visible galaxy in optical image but missing from all cats searched (SDSS DR7-9, NED, GAMA), for example because the galaxy falls under a bright star mask. No optical ID given in catalogue, but the flag indicates that it is visible in the optical. -99 = not analysed Note (4): ANNz neural network technique (Smith et al, 2011MNRAS.416..857S). Note (5): Reference for zsp as follows: 1 = SDSS DR7 (Adelman-McCarthy et al., 2009. Cat. II/294) 2 = 6dFGS (Jones et al., 2009, Cat. VII/259) 4 = 2SLAQ-QSO (Croom et al., 2009, Cat. J/MNRAS/392/19) 8 = 2SLAQ-LRG (Cannon et al., 2006, Cat. J/MNRAS/372/425) 16 = GAMA HATLAS filler targets 32 = GAMA Main Survey (DR1, Driver et al., 2011, Cat. J/MNRAS/413/971, DR2, Liske et al., 2015, Cat. J/MNRAS/452/2087) 64 = 2dFGRS (Colless et al., 2001, Cat. VII/250) 128 = SDSS DR10 256 = Wigglez (Drinkwater et al., 2010, Cat. J/MNRAS/401/1429) 512 = GAMA (but object not in current TilingCat of GAMA-II) Note (6): the "best" flux is identical to the point source flux for non-extended sources (aperture is then -99); an aperture flux is computed for extended sources.
Acknowledgements: Miriam Aberasturi, miriam.aberasturi(at) Eva Verdugo, eva.verdugo(at) References: Bourne at al., Paper II 2016MNRAS.462.1714B
(End) M. Aberasturi/E. Verdugo [Hershcel], Patricia Vannier [CDS] 22-Mar-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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