- #1
rano jojo
- 9
- 1
Hey !
i am having this question to be answered , i am new to the cosmology studies and still a bit confused about some formulas.
the question is:
(a) The greatest redshift known corresponds to the cosmic microwave background
(CMB, CBR) at redshift z 1100 (although the redshift is obtained theoretically
rather than observationally). UDFy-38135539 is a galaxy with the high redshift of
z = 8:555. By what factor did the volume of the universe increase between the
epochs corresponding to z = 1100 and z = 8:555?
what i am thinking of is using the scale factor with the relationship of the redshift for z= 1100
R= 1/1+1100 = 1/1101
then calculate the volume for a dimension universe of the z= 1100
volume = 1/1001*1/1101*1/1001*V (z=8.555)
is that corrects ?
otherwise how i can be solving this question.
thanks
i am having this question to be answered , i am new to the cosmology studies and still a bit confused about some formulas.
the question is:
(a) The greatest redshift known corresponds to the cosmic microwave background
(CMB, CBR) at redshift z 1100 (although the redshift is obtained theoretically
rather than observationally). UDFy-38135539 is a galaxy with the high redshift of
z = 8:555. By what factor did the volume of the universe increase between the
epochs corresponding to z = 1100 and z = 8:555?
what i am thinking of is using the scale factor with the relationship of the redshift for z= 1100
R= 1/1+1100 = 1/1101
then calculate the volume for a dimension universe of the z= 1100
volume = 1/1001*1/1101*1/1001*V (z=8.555)
is that corrects ?
otherwise how i can be solving this question.
thanks