J/A+A/679/A154ivo://CDS.VizieR/J/A+A/679/A154doi:10.26093/cds/vizier.36790154CDSAktar R.Xue L.Zhang L.-X.Luo J.-Y.2024-11-28T20:05:39Z2024-05-02T08:57:55ZCDS support team

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

cds-question@unistra.frgalaxiesastronomical-modelsWe investigate the properties of spiral shocks in a steady, adiabatic, non-axisymmetric, self-gravitating, mass-outflowing accretion disk around a compact object. We obtained the accretion-ejection solutions in a galactic disk and applied them to spiral galaxies in order to investigate the possible physical connections between some observational quantities of galaxies. We considered the self-gravitating disk potential to examine the properties of the galactic gaseous disk. We obtained spiral shock-induced accretion-ejection solutions following the point-wise self-similar approach. We observed that the self-gravitating disk profoundly affects the dynamics of the spiral structure of the disk and the properties of the spiral shocks. We find that the observational dispersion between the pitch angle and shear rate and between the pitch angle and star formation rate in spiral galaxies contains some important physical information. There are large differences among the star formation rates of galaxies with similar pitch angles. These differences may be explained by the different star formation efficiencies caused by distinct galactic ambient conditions.2023A&A...679A.154Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/679/A154CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/679/A154https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/679/A154http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/679/A154https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/679/A154https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/679/A154http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/679/A154GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/679/A154/tablea1 (Parameters for spiral galaxy)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/679/A154/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/679/A154/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/679/A154/tablea1?GETtext/xml+votable180.050000true239.634756117.44146470.0055555555555555566/620 738 975 2290 4053 4178 4342 4511 4843 5028 5298 5332 6216 7751 7844 8045 8522 8563 8883 9124 9220 9622 9718 9885 9891 10111 10221 10380-10381 10398 10515 10566 10612 10705 10778 10987 11164 11369 11396 11944 13316 13381 13426 16788 17398 17751 17819 18069 18173 18302 18779 18800 18854 18932 18941 19108 19227 19508 19618 19939 19954 19996 20193 20254 20279 20417 22737 23273 28430 28458 28513 28522 28617 28639 29973 31628 32478 44472 48880https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/679/A154?format=asciidefaultJ/A+A/679/A154/tablea1Parameters for spiral galaxySimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy namemeta.id;meta.maincharthetaObservational pitch angledegpos.posAngfloatGAMMAObservational shear ratestat.fit.paramfloatnsObservational number of spiral shocksmeta.numberintVK(rmid)Observational local Keplerian velocity at mid radial distancekm/sphys.velocfloatrmidObservational mid radial distance of the diskkpcpos.distancefloatkTheoretical value of kstat.fit.paramfloatq2cmTheoretical rotational velocity at the sonic point for minimal valuesphys.veloc.rotatfloatqrhocmTheoretical density at the sonic point for minimal valuesphys.energy.densityfloatq2-mTheoretical pre-shock rotational velocity for minimal valuesphys.veloc.rotatfloatq2+mTheoretical post-shock rotational velocity for minimal valuesphys.veloc.rotatfloatSFRminTheoretically estimated minimum star formation ratesolMass/yrphys.SFR;stat.minfloatq2cMTheoretical rotational velocity at the sonic point for maximal valuephys.veloc.rotatdoubleqrhocMTheoretical density at the sonic point for maximal valuephys.energy.densitydoubleq2-MTheoretical pre-shock rotational velocity for maximal valuephys.veloc.rotatdoubleq2+MTheoretical post-shock rotational velocity for maximal valuephys.veloc.rotatfloatSFRmaxTheoretically estimated maximum star formation ratesolMass/yrphys.SFR;stat.maxdoubleSFRObs? Observed star formation ratesolMass/yrmeta.idfloatnullablee_SFRObs? Observed star formation rate errorsolMass/yrstat.errorfloatnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main