J/A+A/545/A16ivo://CDS.VizieR/J/A+A/545/A16doi:10.26093/cds/vizier.35450016CDSGavazzi G.Fumagalli M.Galardo V.Grossetti F.Boselli A.,Giovanelli R.Haynes M.P.Fabello S.2017-06-26T11:50:03Z2012-08-29T17:47:25ZCDS support team

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

cds-question@unistra.frgalaxy-clustersh-i-line-emissionline-intensitiesWe present H{alpha}3 (acronym for H{alpha}-{alpha}{alpha}), an H{alpha} narrow-band imaging survey of ~400 galaxies selected from the HI Arecibo Legacy Fast ALFA Survey (ALFALFA) in the Local Supercluster, including the Virgo cluster. By using hydrogen recombination lines as a tracer of recent star formation, we aim to investigate the relationships between atomic neutral gas and newly formed stars in different environments (cluster and field), morphological types (spirals and dwarfs), and over a wide range of stellar masses (~10^7.5^-10^11.5^M_{sun}_). We image in H{alpha}+[NII] all the galaxies that contain more than 10^7^M_{sun}_ of neutral atomic hydrogen in the sky region 11h<R.A.<16h ; 4{deg}<Dec.<16{deg}; 350<cz<2000km/s using the San Pedro Martir 2m telescope. This survey provides a complete census of the star formation in HI rich galaxies of the local universe. We present the properties of the galaxy sample, together with H{alpha} fluxes and equivalent widths. We find an excellent agreement between the fluxes determined from our images in apertures of 3-arcsec diameter and the fluxes derived from the SDSS spectral database. From the H{alpha} fluxes corrected for galactic and internal extinction and for [NII] contamination we derive the global star formation rates (SFRs).2012A&A...545A..16Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/545/A16CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/266 : Atlas of Virgo galaxies (McDonald+ 2011)J/A+A/396/449 : H{alpha} surface photometry in Virgo (Gavazzi+, 2002)J/AJ/131/716 : H{alpha} scale length in Virgo & field spirals (Koopmann+ 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/545/A16https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/545/A16http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/545/A16https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/545/A16https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/545/A16http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/545/A16GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/545/A16/alpha3 (H{alpha}3 catalog: Basic data of the 235 target galaxies, observational specifications and integrated H{alpha} photometric parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/545/A16/alpha3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/545/A16/alpha3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/545/A16/alpha3?GETtext/xml+votable180.050000true138.82083311.8855560.0055555555555555566/4216 4218 8232 8234-8235 8243 8256 8262 8282 8287 8313 8320 8327 8330 8335 8354-8355 8359-8360 8371 8378 8382 8394 8416 8425 8458-8460 8473 8480 8484-8485 8492 8494 8721 8723 8728 8744 8747 26068-26069 26076 26090-26091 26093 26102 26319 26323 26328 26330-26331 26353-26354 26360 26411-26412 26423 26432 26440 26451 26461 26466 26472 26502 26517-26518 26523 26528 26536-26537 26540-26541 26544 26546 26554 26592 26595 27087 27091 27093 27098 27101 27129-27130 27132 27135 27417 27472 27477 27479 27487 27514 27568 27571 27588 27674 27677 27697 27712 27714 27719 27721-27723 27725 27739-27740 27745 27750-27751 27755 27757 27759 27763 27769-27772 27774-27775 27789 27800-27802 27811 27814 27818 27820 27823 27826 27828 27830 27838 27841 27849 27853 27855-27858 27860-27861 27866 27868 27875-27876 27878 27880 27882-27884 27909 27916 27921-27922 27924 27926 27929 27934 27938 27940 27949 27968 28160 28162 28165-28166 28168 28170 28172-28173 28178 28181 28183-28184 28188 28200-28201 28208 28225 31423 31455 31469 31475 31619-31620 31626 31628 31630https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/545/A16?format=asciiRadiodefaultJ/A+A/545/A16/alpha3H{alpha}3 catalog: Basic data of the 235 target galaxies, observational specifications and integrated H{alpha} photometric parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAGCAGC namemeta.id;meta.mainintm_AGC[+] Multiplicity index on AGCmeta.code.multipcharRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainCGCG? CGCG (Cat. VII/49) namemeta.idintnullableUGC? UGC (Cat. VII/26) namemeta.idintnullableNGC? NGC (Cat. VII/118) namemeta.idintnullableIC? IC (Cat. VII/118) namemeta.idintnullableMTypeMorphological typesrc.morph.typecharczHeliocentric velocitykm/sspect.dopplerVeloc;pos.heliocentricinta? Major Axisarcminphys.angSizefloatnullableb? Minor Axisarcminphys.angSize;srcfloatnullableimag? i-band magnitudemagphot.mag;em.opt.Ifloatnullablegmag? g-band magnitudemagphot.mag;em.opt.BfloatnullableDist? DistanceMpcpos.distance;pos.heliocentricfloatnullableNEDSimbad column added by the CDSmeta.refcharDateObserving datetime.epochnullableTonExposure time (ON frame)stime.duration;obs.exposureinto_TonNumber of exposures (ON frame)meta.numberintAirMAir mass (ON frame)obs.airMassfloatZpPhotometric Zero point (ON frame)mW.m**-2phot.mag;arith.zpfloatSonSeeing (ON frame)arcsecinstr.obsty.seeingfloatToffExposure time (OFF frame)sectime.duration;obs.exposureinto_ToffNumber of exposures (OFF frame)meta.numberintSofff Seeing (OFF frame)arcsecinstr.obsty.seeingfloatnNormalization coefficientmeta.notefloatEWHa? H{alpha} EW0.1nmspect.line.eqWidth;em.line.Halphafloatnullablee_EWHaUncertainty on HaEW0.1nmstat.errorfloatl_logF(Ha)Limit flag on logF(Ha)meta.code.errorcharlogF(Ha)log of H{alpha} fluxlog(mW.m**-2)phot.flux;em.line.Halpha;spect.linefloate_logF(Ha)? Uncertainty on log of H{alpha} fluxlog(mW.m**-2)stat.errorfloatnullablel_logSFRLimit flag on logSFRmeta.code.error;phys.SFRcharlogSFR? Stellar formation rate, uncorrected for internal extinctionlog(solMass.yr**-1)arith.rate;phys.SFRfloatnullablel_logSFRcLimit flag on logSFRcmeta.code.errorcharlogSFRc? Stellar formation rate, corrected for internal extinctionlog(solMass.yr**-1)arith.rate;phys.SFRfloatnullableNote[*] *: corrected for Balmer decrementmeta.notecharQual[PT] Photometric quality (P=phot T=transp)meta.code.qual;photcharFig? Atlas Figure numbermeta.idintnullable