Galaxies: Types and Propertiesburro.case.edu/Academics/Astr323/Lectures/morphtype.pdf · Galaxies:...
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Galaxies: Types and Properties Hubble Sequence (“The Tuning Fork”): The most basic of classification schemes: visual morphology. Hubble 1936 Ellipticals N = 10 ( 1 - b a ) S0 (“Lenticulars”) transitional type disky but smooth Spirals: Sa,Sb,Sc tightness of spiral prominence of bulge Barred Spirals: SBa, SBb, SBc presence of central bar otherwise like Spiral Sd, Sm, Irr
Transcript of 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
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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.
![12 S081101F Galaxies and Stars-1 [Read-Only]€¦ · Irregular Elliptical Spiral ... Types of Galaxies – Irregular… Some galaxies do not have definable, regular shapes and are](https://static.fdocuments.us/doc/165x107/604ef91b64df690162102e09/12-s081101f-galaxies-and-stars-1-read-only-irregular-elliptical-spiral-types.jpg)
