Rotation and mass in the Milky Way and spiral galaxies

Publications of the Astronomical Society of Japan

Sofue, Yoshiaki¹ 

[1] Sofue, Yoshiaki@@

关键词: "dark matter";    "galaxies: fundamental parameters";    "galaxies: kinematics and dynamics";    "galaxies: structure";    "Galaxy: fundamental parameters";    "Galaxy: kinematics and dynamics";    "Galaxy: structure";   

DOI  :  10.1093/pasj/psw103

学科分类：天文学(综合)

来源: Oxford University Press

【 摘 要 】

Rotationcurvesarethebasictoolforderivingthedistributionofmassinspiralgalaxies.Inthisreview,wedescribevariousmethodstomeasurerotationcurvesintheMilkyWayandspiralgalaxies.Wethendescribetwomajormethodstocalculatethemassdistributionusingtherotationcurve.Bythedirectmethod,themassiscalculatedfromrotationvelocitieswithoutemployingmassmodels.Bythedecompositionmethod,therotationcurveisdeconvolvedintomultiplemasscomponentsbymodelfittingassumingablackhole,bulge,exponentialdisk,anddarkhalo.Thedecompositionisusefulforstatisticalcorrelationanalysesamongthedynamicalparametersofthemasscomponents.Wealsoreviewrecentobservationsandderivedresults.

【 授权许可】

Unknown