J/AJ/157/81ivo://CDS.VizieR/J/AJ/157/81doi:10.26093/cds/vizier.51570081CDSO'Donoghue A.A.Haynes M.P.Koopmann R.A.Jones M.G.Giovanelli R.,Balonek T.J.Craig D.W.Hallenbeck G.L.Hoffman G.L.Kornreich D.A.,Leisman L.Miller J.R.2024-06-10T06:02:45Z2019-05-31T13:09:12ZCDS support team

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

cds-question@unistra.frgalaxy-clustersradio-galaxiesh-i-line-emissionsurveysWe report a multi-objective campaign of targeted 21 cm H I line observations of sources selected from the Arecibo Legacy Fast Arecibo L-band Feed Array (ALFALFA) survey and galaxies identified by their morphological and photometric properties in the Sloan Digital Sky Survey. The aims of this program have been (1) to confirm the reality of some ALFALFA sources whose enigmatic nature suggest additional multiwavelength observations; (2) to probe the low signal-to-noise ratio (S/N) regime, below the ALFALFA reliability limit; and (3) to explore the feasibility of using optical morphology, color, and surface brightness to identify gas-rich objects in the region of the Pisces-Perseus Supercluster (PPS) whose H I fluxes are below the ALFALFA sensitivity limit at that distance. As expected, the reliability of ALFALFA detections depends strongly on the S/N of the H I line signal and its coincidence with a probable stellar counterpart identified by its optical properties, suggestive of ongoing star formation. The identification of low-mass, star-forming populations enables targeted H I line observations to detect galaxies with H I line fluxes below the ALFALFA sensitivity limits in fixed local volumes (D<100 Mpc). The method explored here serves as the basis for extending the sample of gas-bearing objects as part of the ongoing Arecibo Pisces-Perseus Supercluster Survey (APPSS).2019AJ....157...81Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/157/81CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/77 : HI spectral properties of galaxies (Springob+, 2005)V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)J/AJ/105/1251 : Velocities in Pisces-Perseus supercluster. (Wegner+, 1993)J/AJ/105/1271 : Pisces-Perseus supercluster. VI (Giovanelli+, 1993)J/A+A/286/17 : 21cm obs. of galaxies in Psc-Per Supercl. (Seeberger+ 1994)J/A+A/414/905 : H-band photometry in Pisces-Perseus disk galaxies (Hunt+, 2004)J/AJ/142/170 : ALFALFA survey: the {alpha}.40 HI source cataloghttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/157/81https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/157/81http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/157/81https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/157/81https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/157/81http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/157/81GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/157/81/table2 (Properties of LBW detections)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/157/81/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/157/81/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/157/81/table2?GETtext/xml+votable180.050000true0.2779169432.378330.0055555555555555565/568 5088 6/27 62 148 154 161 163 191 234 236 238 240 422 527 535 538 555 633-635 648 667 675 695 697 703 714-715 723 728 732-733 735-736 739 743 747-748 751-752 754 766-767 783 794 800-801 806 809 816 823 828-830 896 906-907 911-912 921-922 926 935-938 940 942-943 946 960 973 975 997 2077 2090 2095 2111 2113 2117 2129-2130 2132-2133 2139 2142 2148 2156 2181 2185 2195 2205 2211 2214-2215 2218 2220 2223 2227-2228 2233 2236 2238 2242-2243 2246 2249-2252 2258 2264-2265 2276 2305-2307 2309 2312-2313 2560-2561 2564 2574 2582 2586 12381 12566 12574 12581 12593 12619 12626 12659 12742 12766 12791 13135 13323 13325 13327-13328 13337 13339 13353 13355 13377 13381 13391 13396-13398 13405-13406 13415 13425 13427-13428 13430 13436 13440 13457 13460 13463 13466 13484 13496 13502 13511 13523 13526 13541-13542 13568 13570 13603 13842 18277 18317 18320 18335 18391-18392 18396 18405 18937 18940 19060 19284 19298 19302 19324 19416-19417 19434 19438 19443 19565 19596 19610 19620 19656 19667 19673 19737 19763 19858 19883 19895 19900-19902 19909 19911 19913 19917 19922 19949 19958-19959 19961 19964-19966 19983 19993 20008 20014 20017 20026 20044 20085 20095 20112 20148 20150 20167 20172-20174 20176 20180 20183 20189 20192-20193 20206 20209 20213-20215 20218 20221 20231 20233 20238 20246 20258 20276-20278 20280 20283 20287 20292 20296 20302-20303 20307 20314 20317 20320 20322-20323 20325 20327 20331 20357-20359 20362 20364 20370 20372-20373 20386 20399-20401 20417 20419 20424 20429 20434 20459 23211https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/157/81?format=asciiRadiodefaultJ/AJ/157/81/table1Detection rates by categoryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCatCategorymeta.code.classcharn_CatNote on Cat (1)meta.notecharNdet[0/207] Number of detection(s)meta.numberintNndet[0/88] Number of non-detection(s)meta.numberintRate[0/100] Detection rate%stat.fit.paramfloatJ/AJ/157/81/table2Properties of LBW detectionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAGC[937/749170] Entry number from the Arecibo General Catalog (AGC) (1)meta.idintRAJ2000HI centroid degree of Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000HI centroid degree of Declination (J2000)degpos.eq.dec;meta.mainCatSource category of target (see Table 1)meta.code.classcharRVel[214.6/12461.7] Heliocentric velocity of HI profile midpointkm/sspect.dopplerVeloc;spect.line;pos.heliocentricfloate_RVel[0/46.7] Uncertainty in RVelkm/sstat.error;spect.dopplerVelocfloatW50[18.9/1012.1] Observed velocity width at 50% peak on either sidekm/sspect.line.widthfloate_W50[0.2/209.8] Uncertainty in W50km/sstat.errorfloatFHI[0.09/11.24] HI line flux densityJ.km/sphot.flux.density;spect.linefloate_FHI[0.01/0.131] Uncertainty in FHIJ.km/sstat.errorfloatDist[4.11/173.3] Adopted distance from the ALFALFA flow model (see Haynes et al. 2011, J/AJ/142/170)Mpcpos.distance;pos.heliocentricfloatlogMHI[5.84/10.27] Log HI masslog(solMass)phys.massfloat