J/ApJS/234/2ivo://CDS.VizieR/J/ApJS/234/2doi:10.26093/cds/vizier.22340002CDSPeek J.E.G.Babler B.L.Zheng Y.Clark S.E.Douglas K.A.Korpela E.J.,Putman M.E.Stanimirovic S.Gibson S.J.Heiles C.2023-05-26T15:23:55Z2018-04-19T07:36:41ZCDS support team

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

cds-question@unistra.frh-i-line-emissionsurveysWe present the Galactic Arecibo L-Band Feed Array HI (GALFA-HI) survey data release 2 (DR2). The survey covers the 21cm hyperfine transition of Galactic HI from -650 to 650km/s, with 0.184km/s channel spacing, 4' angular resolution, and 150mK rms noise per 1km/s velocity channel. DR2 covers the entirety of the sky available from the William E. Gordon 305m antenna at Arecibo, from decl. -1{deg}17' to decl. +37{deg}57' across all R.A.: 4 steradians or 32% of the sky. DR2 differs in a number of ways from data release 1, which was released in 2011. DR2 is built from a largely separate set of observations from DR1, which were taken in a much more consistent mode. This consistency, coupled with more careful attention to systematics and more advanced data reduction algorithms, leads to a much higher-quality DR2 data product. We present three data sets for public use: HI data cubes, far- sidelobe stray-radiation-corrected column density maps, and results of the Rolling Hough Transform linear feature detection algorithm.2018ApJS..234....2Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/234/2CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/76 : Leiden/Argentine/Bonn (LAB) Survey of Galactic HI (Kalberla+ 2005)J/ApJ/722/395 : Compact H I clouds from the GALFA-H I survey (Begum+, 2010)J/ApJ/758/44 : The GALFA-HI compact cloud catalog (Saul+, 2012)J/ApJ/793/132 : Perseus cloud sources Gaussian param. (Stanimirovic+, 2014)J/ApJ/808/136 : UV counterparts in HI clouds using ALFA data (Donovan+, 2015)J/A+A/594/A116 : HI4PI spectra and column density maps (HI4PI team+, 2016)J/A+A/585/A41 : EBHIS spectra and HI column density maps (Winkel+, 2016)http://purcell.ssl.berkeley.edu/ : GALFA HI Data Archivehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/234/2https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/234/2http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/234/2https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/234/2https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/234/2http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/234/2GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/234/2/table3 (A link table for GALFA-HI Wide data cubes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/234/2/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/234/2/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/234/2/table3?GETtext/xml+votable180.050000true356.034.350.005555555555555556Cone search capability for table J/ApJS/234/2/table4 (A link table for GALFA-HI Narrow data cubes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/234/2/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/234/2/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/234/2/table4?GETtext/xml+votable180.050000true356.034.350.0055555555555555566/9 91 151 174 254 353 408 477 610 655 734 824 836 974 1073 1229 1315 1553 1576 2095 2115 2174 2273 2322 2573 4210 4252 4436 4450 4494 4596 4608 4669 4690 4769 4851 4911 4930 4990 5090 5176 5185 5245 5348 5393 5650 6173 6276 6333 6353 6413 6670 8300 8369 8448 8510 8530 8609 8691 8781 8849 8872 8952 8991 9089 9149 9169 9262 9288 9342 9442 9485 9742 10292 10370 10430 10456 10529 10786 12294 12381 12395 12455 12541 12623 12689 12781 12900 12946 13038 13108 13192 13261 13343 13443 13501 13522 13582 13857 14386 14542 14612 14626 14867 17849 17861 18106 18118 18186 18288 18332 18805 18889 19062 19146 19205 19308 19376 19559 19611 19713 19773 19793 19873 19953 19970 20030 20050 20130 20210 20296 20356 20433 20450 21877 21946 21958 22134 22217 22381 22427 22905 22986 23162 23220 23302 23388 23463 23488 23549 23557 23639 23662 23728 23885 23956 23970 24056 24142 24211 24303 24350 24451 24510 24530 25974 26058 26233 26293 26373 26455 26475 26546 27002 27062 27321 27333 27402 27505 27543 27563 27651 27740 27820 27840 27903 27982 28050 28142 28257 28301 28381 28467 28623 30072 30133 30390 30405 30473 30555 30636 30656 30718 31161 31174 31349 31418 31433 31591 31646 31754 31856 31901 31915 32099 32141 32223 32337 32360 32398 32500 32557 32579 32637 32737https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/234/2?format=asciiRadiodefaultJ/ApJS/234/2/table2The 12 regions used to construct DR2RegionRegion identifiermeta.id;obs.fieldcharDEupmUpper range of Arcminute of declinationarcminpos.eq.decTimeIntegration timehtime.expointrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAlohLower range of Hour of Right ascensionhpos.eq.raRAlomLower range of Minute Right ascensionminpos.eq.raRAuphUpper range of Hour of Right ascensionhpos.eq.raRAupmUpper range of Minute Right ascensionminpos.eq.raDElodLower range of Degree of declinationdegpos.eq.decDElomLower range of Arcminute of declinationarcminpos.eq.decDEupdUpper range of Degree of declinationdegpos.eq.decDateLoLower date of observationtime.epoch;obs;stat.minnullableDateUpUpper date of observationtime.epochnullableJ/ApJS/234/2/table3A link table for GALFA-HI Wide data cubesURLDownload URL as of 2017-10-05meta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of data cube center (J2000)degpos.eq.ra;meta.mainDEJ2000[2.3/34.4] Declination of data cube center (J2000)degpos.eq.dec;meta.mainFileFilename, 1.1GB data cube uncompressedmeta.id;meta.filecharJ/ApJS/234/2/table4A link table for GALFA-HI Narrow data cubesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of data cube center (J2000)degpos.eq.ra;meta.mainDEJ2000[2.3/34.4] Declination of data cube center (J2000)degpos.eq.dec;meta.mainFileFilename, 1.1GB data cube uncompressedmeta.id;meta.filecharURLDownload URL as of 2017-10-05meta.ref.urlchar