galaxies: types and propertiesburro.case.edu/academics/astr323/lectures/morphtype.pdf · galaxies:...

Galaxies:TypesandProperties

HubbleSequence(“TheTuningFork”):Themostbasicofclassificationschemes:visualmorphology.

Hubble1936

Ellipticals

N = 10�1� b

a

�<latexit sha1_base64="fXv670Hv6qaMF97wtaBIM9iYdDU=">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</latexit>

S0 (“Lenticulars”)transitionaltypediskybutsmooth

Spirals:Sa,Sb,Sctightnessofspiralprominenceofbulge

BarredSpirals:SBa,SBb,SBcpresenceofcentralbarotherwiselikeSpiral

Sd,

Sm,

Irr

Galaxies:TypesandProperties

HubbleSequence(“TheTuningFork”):Themostbasicofclassificationschemes:visualmorphology.

Ellipticals

N = 10�1� b

a

�<latexit sha1_base64="fXv670Hv6qaMF97wtaBIM9iYdDU=">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</latexit>

S0 (“Lenticulars”)transitionaltypediskybutsmooth

Spirals:Sa,Sb,Sctightnessofspiralprominenceofbulge

BarredSpirals:SBa,SBb,SBcpresenceofcentralbarotherwiselikeSpiral

HubbleHubbleSequence

Sd,

Sm,

Irr

Galaxies:TypesandProperties

HubbleSequence(“TheTuningFork”):Themostbasicofclassificationschemes:visualmorphology.

HubbleHubbleSequence

“Early” “Late”

“T-type”:-5-202 358-10

Sd,

Sm,

Irr

Galaxies:TypesandProperties

Many,manyotherclassificationschemesexist:

Morphology,colors,bulge:diskratio,spectralproperties,structuralproperties,starformingproperties,luminosityclasses,kinematicproperties,etc,etc.

Galaxies:TypesandProperties

Many,manyotherclassificationschemesexist:

Morphology,colors,bulge:diskratio,spectralproperties,structuralproperties,starformingproperties,luminosityclasses,kinematicproperties,etc,etc.

Galaxies:TypesandProperties

Many,manyotherclassificationschemesexist:

Morphology,colors,bulge:diskratio,spectralproperties,structuralproperties,starformingproperties,luminosityclasses,kinematicproperties,etc,etc.