Table 1.6

Data for some galaxy types

DescriptionIntrinsic luminosity, LʘMass range, MʘDiameter, kpc
Spiral Flat disc, spiral arms 108–1011 109–1012 10–100 
Elliptical Smooth ellipsoidal 106–109 106–1013 1–200 
Irregular Irregular, dusty 106–109 106–1011 1–10 
Starburst Intense star formation 109–1011 106–1010 102–103 
ULIRG Most emission in IR, very bright >109 109 (?) 103 (?) 
DescriptionIntrinsic luminosity, LʘMass range, MʘDiameter, kpc
Spiral Flat disc, spiral arms 108–1011 109–1012 10–100 
Elliptical Smooth ellipsoidal 106–109 106–1013 1–200 
Irregular Irregular, dusty 106–109 106–1011 1–10 
Starburst Intense star formation 109–1011 106–1010 102–103 
ULIRG Most emission in IR, very bright >109 109 (?) 103 (?) 
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