The Kormendy relation for ellipticals can be written as He = 20.2 + 3.0 log R. where Re is the half-light radius (in kpc) and ue is the surface brightness (in magnitudes per square arc second) at Re. An elliptical galaxy obeying this relation will have a total luminosity Lo R for some index n. What is the correct value of n? O a. r -6/5 O b. n= 4/5 Oc n= 16/5 n cannot
The Kormendy relation for ellipticals can be written as He = 20.2 + 3.0 log R. where Re is the half-light radius (in kpc) and ue is the surface brightness (in magnitudes per square arc second) at Re. An elliptical galaxy obeying this relation will have a total luminosity Lo R for some index n. What is the correct value of n? O a. r -6/5 O b. n= 4/5 Oc n= 16/5 n cannot
Related questions
Question
Transcribed Image Text:The Kormendy relation for ellipticals can be written as
He = 20.2+ 3.0 log R.
where R. is the half-light radius (in kpc) and 4e is the surface brightness (in magnitudes per square arc second) at R..
An elliptical galaxy obeying this relation will have a total luminosity
Lo R
for some index 7. What is the correct value of n?
O a. n=-6/5
O b. n= 4/5
T23D
Oc n= 16/5
O d. n cannot be determined with the information we have.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
