J/A+A/169/14ivo://CDS.VizieR/J/A+A/169/14doi:10.26093/cds/vizier.31690014CDSBrinks E.Bajaja E.2026-07-03T06:34:56Z2025-03-07T07:04:47ZCDS support team

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

cds-question@unistra.frgalaxiesh-i-line-emissioninterstellar-mediumradial-velocityAn analysis is carried out of HI holes in M 31 as detected with the Westerbork radiotelescope (WSRT). The holes range from 100-1000pc across and represent missing masses ranging from 10^3^ to 10^7^M_{sun}_, which would require energies ranging from 10 to the 49th to 10 to the 53rd erg. The kinematic ages are projected to be from 2.5-30 million years, with the production rate of the holes being 1/100000yr. The production rate estimate is used to derive a lower limit for the occurrence of supernovae in M 31, about 0.001/yr. Finally, a correlation is found between H I holes smaller than 300pc and OB associations and H II regions.1986A&A...169...14Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/169/14CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/7 : Hat Creek High-Latitude H I Survey (Heiles+ 1974-1976)VII/112 : RC2 Catalogue (de Vaucouleurs+ 1976)J/A+AS/31/439 : A Survey of HII Regions in M31 (Pellet+ 1978)J/A+AS/61/451 : The 37W catalogue of radio sources in M31 (Walterbos+ 1985)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/169/14https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/169/14http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/169/14https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/169/14https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/169/14http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/169/14GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/169/14/regions (Observed (Table 2) and derived (Table 3) properties of HI holes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/169/14/regions?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/169/14/regions?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/169/14/regions?GETtext/xml+votable180.050000true10.10871140.483480.0055555555555555566/2622-2623 2666 2708-2709 2752https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/169/14?format=asciiRadiodefaultJ/A+A/169/14/regionsObserved (Table 2) and derived (Table 3) properties of HI holesT[1/3] Type of the hole (6)meta.code.classint_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.raindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.decindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/141] Name of the hole (G1)meta.id;meta.mainintXposX coordinate from the center of the galaxy (1)arcminpos.cartesian.xcharYposY coordinate from the center of the galaxy (1)arcminpos.cartesian.ycharRAB1950[0] Center of the hole hour of right ascension (B1950)pos.eq.ra;meta.mainDEB1950[40/41] Center of the hole degree of declination (B1950)pos.eq.dec;meta.mainHRV[-577/342] Radial heliocentric velocity, V_Hel_ (2)km/sspect.dopplerVeloc;pos.heliocentricfloatDV[-29/25]? Expansion velocity (3)km/sphys.veloc.expansionfloatnullableFWHMI[80/1000] Full width at half depth along the minor axis of the hole (4)pcphys.sizeintFWHMA[120/1400] Full width at half depth along the major axis of the hole (4)pcphys.sizeintpsi[0/170] Position angle, {psi} of the major axis of the hole, counter-clockwise with respect to the north declination axisdegpos.posAngintINT[7.5/66] Brightness temperature of the ambient HI in the channel map at V_Hel_Kphys.temperature;em.line.HIfloatContr[0.14/0.74] Contrast of the hole with respect to its surroundings (5)phys.temperature;arith.diff;em.line.HIfloatQ[1/3] Quality of the hole (3=high quality)meta.code.qualintCClass of the hole ("c"=complete; "p"=partial)meta.codecharRemarksRemarksmeta.notecharR[1.7/20.5] Position of the hole in polar coordinates in the plane of M31kpcpos.distancefloattheta[2.6/351.2] Angle measured counter-clockwise with respect to the north major axis of M31degpos.posAngfloatMaj[0/1000] Full width at half depth along the major axis of the hole (7)pcphys.size.diameterintMin[0/1400] Full width at half depth along the minor axis of the hole (7)pcphys.size.diameterintPA[0/168] Position angle of the hole after beam deconvolution, measured counter-clockwise with respect to the north declination axisdegpos.posAngintDiam[11/1183]? Effective diameter of the hole (8)pcphys.size.diameterintnullableRatio[0/1]? Axial ratio of the hole (8)phys.size.axisRatiofloatnullablenHI[0.1/1.3] Volume density of the HI surrounding the hole (9)phys.density;em.line.HIfloatAge[2.2/663.3]? Kinematic age of the hole (10)Myrtime.agefloatnullableMass[0.1/1165.2]? Indicative HI mass (11)10000solMassphys.massfloatnullableEnergy[0.1/1859]? Indicative energy needed to produce a hole in 10^50^erg (12)1e+43Jphys.energyfloatnullable