Which of these statements are true?
A The value of the Hubble constant is 70.4 km s−1 kpc−1, with an uncertainty of about 1.5 km s−1 Mpc−1 .
B The apparent speed of recession of a galaxy is given by the product of the Hubble constant and the distance to the galaxy.
C The further away a galaxy is, the lower its apparent speed of motion away from us.
D A galaxy with a redshift of 5.37 is situated at a look-back time of 4.1 billion years.
E Space is expanding uniformly so that the distance between galaxies remains constant.
Is B the correct statement?
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Redshift and Hubble constant, true or false? watch
- Thread Starter
- 31-07-2009 18:51
- 31-07-2009 19:08
I think so