3 ms·
Preprint at: https://arxiv.org/abs/2005.09661 https://arxiv.org/abs/2005.09661 They found evidence of a cold disk galaxy at z = 4.26 using ALMA observations of
by SiempreViernes 6y ago
Preprint at: https://arxiv.org/abs/2005.09661 https://arxiv.org/abs/2005.09661
They found evidence of a cold disk galaxy at z = 4.26 using ALMA observations of [C II].
- mturmon 6y agoThanks for the link. They identified the galaxy they're studying because it happens to be backlit by an even more-distant quasar. Galaxies identified this way are not "special" in the sense that highly-luminous galaxies are. (That is, this selection method avoids the obvious bias of just studying really bright high-z galaxies.) As a small aside, it's really impressive how routine tailored MCMC analysis has become in astrophysics.