The most distant galaxy ever known in redshift of z~10(Universe is 500 My old) is found in ultra deep field image of Hubble by R.J.Bouwens and et al. (Nature 469, 504-507) 2011. They also study the star formation rate and conclude that he star formation rate density is much smaller (~10%) at this time than it is just ~200 Myr later at z ≈ 8. This demonstrates how rapid galaxy build-up was at z ≈ 10, as galaxies increased in both luminosity density and volume density from z ≈ 10 to z ≈ 8.
1 comments:
Very interesting
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