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II/352        The VISTA Hemisphere Survey (VHS) catalog        (McMahon+, 2013)

VISTA Hemisphere Survey band-merged multi-waveband catalogues (VHS) McMahon, R. G., Banerji, M., Gonzalez, E., Koposov, S. E., Bejar, V. J., Lodieu, N., Rebolo, R., The VHS Collaboration <The Messenger. 154, 35-37 (2013)> =2013Msngr.154...35M =2017yCat.2352....0M
Mission_Name: ESO ADC_Keywords: Photometry, infrared ; Surveys Abstract: The first Galactic and extragalactic results from the VISTA Hemisphere Survey (VHS) are presented. The aim of the VHS is to carry out a near-infrared survey which, when combined with other VISTA public surveys, will result in coverage of the whole southern celestial hemisphere (∼20000deg2) to a depth 30 times fainter than the Two Micron All Sky Survey in at least two wavebands (J and Ks). The VHS vision includes a deep optical survey over the same area and this is now being realised with the VST surveys and the Dark Energy Survey, which has recently started. A summary of the survey progress is presented, with some follow-up results on low-mass stars and high-redshift quasars. Description: Observations were made with the VIRCAM instrument on the ESO-VISTA telescope between 2009 November and 2013 October in Y, J, H and Ks filters. Acknowledging the VHS in publications: Please include the following acknowledgment in any published material that makes use of the VHS products: Based on observations made with ESO Telescopes at the La Silla or Paranal Observatories under programme ID 179.A-2010 File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file vhs_dr3.sam 1302 1000 VISTA Hemisphere Survey band-merged multi-waveband catalogues (VHS) DR3; sample output (on a total of 590,835,393 sources)
See also: http://www.vista-vhs.org/ : VHS home page http://horus.roe.ac.uk/vsa/ : VISTA Science Archive home page Byte-by-byte Description of file: vhs_dr3.sam
Bytes Format Units Label Explanations
1- 12 I12 --- SrcID [472446402561/473037940311] Unique ID of this merged detection as assigned by merge algorithm (SOURCEID) 14- 23 F10.6 deg RAdeg Celestial Right Ascension; J2000 (RA2000) 25- 34 F10.6 deg DEdeg Celestial Declination; J2000 (DEC2000) 36- 58 A23 --- Name Source name in IAU convention (SOURCENAME) 60- 65 I6 --- CuID [451771] Unique ID of curation event giving rise to this record (always "451771") (CUEVENTID) 67- 78 I12 --- FrID Unique ID of the set of frames that this merged source comes from (FRAMESETID) 80- 89 F10.6 deg GLON Galactic longitude (L) 91-100 F10.6 deg GLAT Galactic latitude (B) 102-113 I12 --- priOrSec Seam code for a unique (=0) or duplicated (!=0) source (PRIORSEC) 115-122 F8.4 mag Y-Jpnt [-13/9]? Point source colour Y-J (using aperMag3) (YMJPNT) 124-132 F9.4 mag e_Y-Jpnt [/5999]? Error on Y-Jpnt (YMJPNTERR) 134-141 F8.4 mag J-Hpnt [-12/10]? Point source colour J-H (using aperMag3) (JMHPNT) 143-150 F8.4 mag e_J-Hpnt [/744]? Error on J-Hpnt (JMHPNTERR) 152-159 F8.4 mag H-Kspnt [-11/12]? Point source colour H-Ks (using aperMag3) (HMKSPNT) 161-168 F8.4 mag e_H-Kspnt [/627]? Error on H-Kspnt (HMKSPNTERR) 170-177 F8.4 mag J-Kspnt [-12/22]? Point source colour J-Ks (using aperMag3) (JMKSPNT) 179-188 F10.4 mag e_J-Kspnt [/13621]? Error on J-Kspnt (JMKSPNTERR) 190-197 F8.4 mag Y-Jext [-12/9]? Extended source colour Y-J (using aperMagNoAperCorr3) (YMJEXT) 199-207 F9.4 mag e_Y-Jext [/5999]? Error on Y-Jext (YMJEXTERR) 209-216 F8.4 mag J-Hext [-12/10]? Extended source colour J-H (using aperMagNoAperCorr3) (JMHEXT) 218-225 F8.4 mag e_J-Hext [/744]? Error on J-Hext (JMHEXTERR) 227-234 F8.4 mag H-Ksext [-11/12]? Extended source colour H-Ks (using aperMagNoAperCorr3) (HMKSEXT) 236-243 F8.4 mag e_H-Ksext [/627]? Error on H-Ksext (HMKSEXTERR) 245-252 F8.4 mag J-Ksext [-12/23]? Extended source colour J-Ks (using aperMagNoAperCorr3) (JMKSEXT) 254-263 F10.4 mag e_J-Ksext [/13621]? Error on J-Ksext (JMKSEXTERR) 265-273 F9.4 --- Clst Merged N(0,1) stellarness-of-profile statistic (MERGEDCLASSSTAT) 275-276 I2 --- Cl [-3/1] Class flag (MERGEDCLASS) (1) 278-285 F8.6 --- pStar Probability that the source is a star (PSTAR) 287-294 F8.6 --- pGal Probability that the source is a galaxy (PGALAXY) 296-303 F8.6 --- pNoise Probability that the source is noise (PNOISE) 305-310 F6.4 mag E(B-V) [0.001/8] The galactic dust extinction value measured from the Schlegel maps (EBV) 312-318 F7.4 mag AY [0.001/11] The galactic extinction correction in the Y band (AY) 320-325 F6.4 mag AJ [0.001/8] The galactic extinction correction in the J band (AJ) 327-332 F6.4 mag AH [/5] The galactic extinction correction in the H band (AH) 334-339 F6.4 mag AKs [/4] The galactic extinction correction in the Ks band (AKS) 341-347 F7.4 mag Ypmag [4/35]? Extended source VISTA Y mag (Petrosian) (YPETROMAG) 349-359 F11.4 mag e_Ypmag [0/255661]? Error in Ypmag (YPETROMAGERR) 361-367 F7.4 mag Yap3 [4/34]? Default point source Y aperture corrected mag (2.0 arcsec diam) (YAPERMAG3) 369-378 F10.4 mag e_Yap3 [/63914]? Error in default point/extended source Y mag (YAPERMAG3ERR) 380-386 F7.4 mag Yap4 [4/34]? Point source Y aperture corrected mag (2.8 arcsec aperture diam) (YAPERMAG4) 388-397 F10.4 mag e_Yap4 [/63442]? Error in point/extended source Y mag (2.8 arcsec aperture diam) (YAPERMAG4ERR) 399-405 F7.4 mag Yap6 [3/38]? Point source Y aperture corrected mag (5.7 arcsec aperture diam) (YAPERMAG6) 407-418 F12.4 mag e_Yap6 [/2719583]? Error in point/extended source Y mag (5.7 arcsec aperture diam) (YAPERMAG6ERR) 420-426 F7.4 mag Yapc3 [4/35]? Default extended source Y aperture mag (2.0 arcsec diam) (YAPERMAGNOAPERCORR3) 428-434 F7.4 mag Yapc4 [4/35]? Extended source Y aperture mag (2.8" aperture diameter) (YAPERMAGNOAPERCORR4) 436-442 F7.4 mag Yapc6 [3/38]? Extended source Y aperture mag (5.7" aperture diameter) (YAPERMAGNOAPERCORR6) 444-450 F7.4 arcsec Yamaj [0/19]? Seeing corrected half-light, semi-major axis in Y band (YHLCORSMJRADAS) 452-459 F8.4 pix Yrms [0.7/303]? RMS of axes of ellipse fit in Y (YGAUSIG) 461-466 F6.4 --- Yell ? 1-b/a, where a/b=semi-major/minor axes in Y (YELL) 468-472 F5.1 deg YPA ? Ellipse fit celestial orientation in Y (YPA) 474-482 I9 --- Yerrb [/28] Processing warning/error bitwise flags in Y (YERRBITS) 484-490 F7.3 --- Yavg [0/112]? Average confidence in 2 arcsec diam default aperture 3 Y-band (YAVERAGECONF) 492-496 I5 --- YCl [/1] Discrete image classification flag in Y (YCLASS) (1) 498-505 F8.3 --- YClst [-109/444]? N(0,1) stellarness-of-profile statistic in Y (YCLASSSTAT) 507-514 I8 --- Yperrb [0/12587216] Additional Wide Field Astronomy Unit (WFAU) post-processing error bits in Y (<256: minor issues) (YPPERRBITS) (2) 516-524 I9 --- Yseq [/110314] The running number of the Y detection (YSEQNUM) 526-569 F44.4 mag Jpmag [-24/]? Extended source VISTA J mag (Petrosian) (JPETROMAG) 571-614 F44.4 mag e_Jpmag [0/]? Error in Jpmag (JPETROMAGERR) 616-623 F8.4 mag Jap3 [-22/35]? Default point source J aperture corrected mag (2.0 arcsec diam) (JAPERMAG3) 625-634 F10.4 mag e_Jap3 [0/76220]? Error in Jap3 (JAPERMAG3ERR) 636-643 F8.4 mag Jap4 [-22/36]? Point source J aperture corrected mag (2.8 arcsec aperture diam) (JAPERMAG4) 645-656 F12.4 mag e_Jap4 [0/1565601]? Error in Jap4 (JAPERMAG4ERR) 658-665 F8.4 mag Jap6 [-22/38]? Point source J aperture corrected mag (5.7 arcsec aperture diam) (JAPERMAG6) 667-678 F12.4 mag e_Jap6 [0/8556921]? Error in Jap6 (JAPERMAG6ERR) 680-687 F8.4 mag Japc3 [-21/35]? Default extended source J aperture mag (2.0 arcsec diam) (JAPERMAGNOAPERCORR3) 689-696 F8.4 mag Japc4 [-22/37]? Extended source J aperture mag (2.8" aperture diameter) (JAPERMAGNOAPERCORR4) 698-705 F8.4 mag Japc6 [-22/38]? Extended source J aperture mag (5.7" aperture diameter) (JAPERMAGNOAPERCORR6) 707-713 F7.4 arcsec Jamaj [0/19]? Seeing corrected half-light, semi-major axis in J band (JHLCORSMJRADAS) 715-722 F8.4 pix Jrms [0.7/584]? RMS of axes of ellipse fit in J (JGAUSIG) 724-729 F6.4 --- Jell ? 1-b/a, where a/b=semi-major/minor axes in J (JELL) 731-735 F5.1 deg JPA ? Ellipse fit celestial orientation in J 737-745 I9 --- Jerrb [/28] Processing warning/error bitwise flags in J (JERRBITS) 747-753 F7.3 --- Javg [0/112]? Average confidence in 2 arcsec diam default aperture 3 J-band (JAVERAGECONF) 755-759 I5 --- JCl [/1] Discrete image classification flag in J (JCLASS) (1) 761-768 F8.3 --- JClst [-310/445]? N(0,1) stellarness-of-profile statistic in J (JCLASSSTAT) 770-777 I8 --- Jperrb [0/12587216] Additional WFAU post-processing error bits in J (<256: minor issues) (JPPERRBITS) (2) 779-787 I9 --- Jseq [/1661208] The running number of the J detection (JSEQNUM) 789-797 F9.6 arcsec Jxi ? Offset of J detection from Y master position (+east/-west) (JXI) 799-807 F9.6 arcsec Jeta ? Offset of J detection from Y master position (+north/-south) (JETA) 809-816 F8.4 mag Hpmag [-24/36]? Extended source VISTA H mag (Petrosian) (HPETROMAG) 818-829 F12.4 mag e_Hpmag [0/2056313]? Error in Hpmag (HPETROMAGERR) 831-838 F8.4 mag Hap3 [-22/29]? Default point source H aperture corrected mag (2.0 arcsec diam) (HAPERMAG3) 840-848 F9.4 mag e_Hap3 [0/2609]? Error in Hap3 (HAPERMAG3ERR) 850-857 F8.4 mag Hap4 [-22/31]? Point source H aperture corrected mag (2.8 arcsec aperture diam) (HAPERMAG4) 859-868 F10.4 mag e_Hap4 [0/15921]? Error in Hap4 (HAPERMAG4ERR) 870-877 F8.4 mag Hap6 [-23/35]? Point source H aperture corrected mag (5.7 arcsec aperture diam) (HAPERMAG6) 879-889 F11.4 mag e_Hap6 [0/737931]? Error in Hap6 (HAPERMAG6ERR) 891-898 F8.4 mag Hapc3 [-21/30]? Default extended source H aperture mag (2.0 arcsec diam) (HAPERMAGNOAPERCORR3) 900-907 F8.4 mag Hapc4 [-22/31]? Extended source H aperture mag (2.8" aperture diameter) (HAPERMAGNOAPERCORR4) 909-916 F8.4 mag Hapc6 [-23/35]? Extended source H aperture mag (5.7" aperture diameter) (HAPERMAGNOAPERCORR6) 918-924 F7.4 arcsec Hamaj [0/19]? Seeing corrected half-light, semi-major axis in H band (HHLCORSMJRADAS) 926-933 F8.4 pix Hrms [0.7/584]? RMS of axes of ellipse fit in H (HGAUSIG) 935-940 F6.4 --- Hell ? 1-b/a, where a/b=semi-major/minor axes in H (HELL) 942-946 F5.1 deg HPA ? Ellipse fit celestial orientation in H (HPA) 948-956 I9 --- Herrb [/28] Processing warning/error bitwise flags in H (HERRBITS) 958-964 F7.3 --- Havg [0/112]? Average confidence in 2 arcsec diam default aperture 3 H (HAVERAGECONF) 966-970 I5 --- HCl [/1] Discrete image classification flag in H (HCLASS) (1) 972-978 F7.3 --- HClst [-96/383]? N(0,1) stellarness-of-profile statistic in H (HCLASSSTAT) 980-987 I8 --- Hperrb [0/12587216] Additional WFAU post-processing error bits in H (<256: minor issues) (HPPERRBITS) (2) 989-997 I9 --- Hseq [/125514] The running number of the H detection (HSEQNUM) 999-1007 F9.6 arcsec Hxi ? Offset of H detection from Y master position (+east/-west) (HXI) 1009-1017 F9.6 arcsec Heta ? Offset of H detection from Y master position (+north/-south) (HETA) 1019-1062 F44.4 mag Kspmag [-20/]? Extended source VISTA Ks mag (Petrosian) (KSPETROMAG) 1064-1107 F44.4 mag e_Kspmag [0/]? Error in Kspmag (KSPETROMAGERR) 1109-1116 F8.4 mag Ksap3 [-34/28]? Default point source Ks aperture corrected mag (2.0 arcsec diam) (KSAPERMAG3) 1118-1126 F9.4 mag e_Ksap3 [0/2186]? Error Ksap3 (KSAPERMAG3ERR) 1128-1135 F8.4 mag Ksap4 [-34/36]? Point source Ks aperture corrected mag (2.8 arcsec aperture diam) (KSAPERMAG4) 1137-1148 F12.4 mag e_Ksap4 [0/3715233]? Error in Ksap4 (KSAPERMAG4ERR) 1150-1157 F8.4 mag Ksap6 [-34/37]? Point source Ks aperture corrected mag (5.7 arcsec aperture diam) (KSAPERMAG6) 1159-1171 F13.4 mag e_Ksap6 [0/]? Error in Ksap6 (KSAPERMAG6ERR) 1173-1180 F8.4 mag Ksapc3 [-34/28]? Default extended source Ks aperture mag (2.0 arcsec diam) (KSAPERMAGNOAPERCORR3) 1182-1189 F8.4 mag Ksapc4 [-34/36]? Extended source Ks aperture mag (2.8" aperture diameter) (KSAPERMAGNOAPERCORR4) 1191-1198 F8.4 mag Ksapc6 [-34/37]? Extended source Ks aperture mag (5.7" aperture diameter) (KSAPERMAGNOAPERCORR6) 1200-1206 F7.4 arcsec Kamaj [0/19]? Seeing corrected half-light, semi-major axis in Ks band (KSHLCORSMJRADAS) 1208-1215 F8.4 pix Ksrms [0.7/549]? RMS of axes of ellipse fit in Ks (KSGAUSIG) 1217-1222 F6.4 --- Ksell ? 1-b/a, where a/b=semi-major/minor axes in Ks (KSELL) 1224-1228 F5.1 deg KsPA ? Ellipse fit celestial orientation in Ks (KSPA) 1230-1238 I9 --- Kserrb [/24] Processing warning/error bitwise flags in Ks (KSERRBITS) 1240-1246 F7.3 --- Ksavg [0/112]? Average confidence in 2 arcsec diam default aperture 3 Ks-band (KSAVERAGECONF) 1248-1252 I5 --- KsCl [/1] Discrete image classification flag in Ks (KSCLASS) (1) 1254-1261 F8.3 --- KsClst [-108/385]? N(0,1) stellarness-of-profile statistic in Ks (KSCLASSSTAT) 1263-1270 I8 --- Ksperrb [0/12587216] Additional WFAU post-processing error bits in Ks (<256: minor issues) (KSPPERRBITS) (2) 1272-1280 I9 --- Ksseq [/1455550] The running number of the Ks detection (KSSEQNUM) 1282-1290 F9.6 arcsec Ksxi ? Offset of Ks detection from Y master position (+east/-west) (KSXI) 1292-1300 F9.6 arcsec Kseta ? Offset of Ks detection from Y master position (+north/-south) (KSETA) 1302 I1 --- Prim [0/1] Flag indicates primary sources (=1), otherwise (=0) (PRIMARY_SOURCE)
Note (1): Class flag as follows: 1 = gal ( occurrences in merged bands) 0 = noise ( occurrences in merged bands) -1 = star ( occurrences in merged bands) -2 = probStar ( occurrences in merged bands) -3 = probGal ( occurrences in merged bands) -9 = saturated ( occurrence in merged bands) Note (2): Quality error bit flags assigned during post processing are listed at http://horus.roe.ac.uk/vsa/ppErrBits.html These flags refer to quality issues of varying severity. For each pass-band nine quality issues are implemented as follows, where the corresponding value of the ppErrBit is given in parenthesis. Source is deblended (16), has bad pixel(s) in default aperture (64), has low confidence in default aperture (128), lies within detector #16 region of a tile (4096), is close to saturation (65536), has photometric calibration probably subject to systematic errors (131072), lies within a dither offset of the stacked frame boundary (4194304), lies within the underexposed strip of a tile (8388606), and lies within an underexposed region of a tile due to missing detector (16777216). To select only sources without quality issues the user can filter on ppErrBits=0, but note that the majority of the sources will have at least ppErrBits=16 due to the dense stellar field, and to include only souraes wht` minor quality issues use ppErrBits<256.
History: Downloaded from http://www.eso.org/qi/catalog/show/51
(End) F.-X. Pineau, E. Perret [CDS] 16-Nov-2017
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