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OpenStudy (anonymous):
Imagine that optical and radio observations of a spiral galaxy have revealed the following: optical flux: F= 4.00x10^-12 J/s.m^2 redshift: z = 1000 km/s width of emission-line from gas in disk: Wo=300 km/s angular size of the length of disk: =1000" inclination of disk relative to plane of sky: i=45 degrees a) Estimate the mass of this galaxy. b) What is M/L for this galaxy?
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OpenStudy (anonymous):
can someone please help me!
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