
Massive Galaxies in the Early Universe
Pieter van Dokkum, , , Gabriel Brammer
Using very deep near-infrared surveys from the ground and from space we have recently identified a large population of red galaxies in the early Universe. These objects emit most of their radiation in the rest-frame optical, which is redshifted to the near-infrared for redshifts z>2, and are very faint in the rest-frame ultraviolet. The image shows an example of this type of object in the Hubble Ultra Deep Field, the deepest image of the sky ever taken. This distant galaxy looks remarkably similar to the large nearby spiral galaxy M31, which is shown at the same physical scale and rest-frame wavelengths. In the context of the Yale/Chile survey we have measured the luminosity function, clustering, and spectra of these newly discovered galaxies.
|
02.02.2009 The International Year of Astronomy at Yale The Astronomy Department is excited to participate in this global effort to help the citizens of the world rediscover their place in the Universe through the day- and night-time sky... MORE INFO |
|
01.08.2010 Second smallest exoplanet found to date discovered at Keck The new discovery will aid in solving the puzzle of how planets and planetary systems form and evolve. MORE INFO |
![]() |
|
01.05.2010 Deepest Image of Universe Yet Reveals Most Distant Galaxies Ever Found An international team of astronomers has used the Hubble Space Telescope to take the deepest image of the universe ever, revealing the farthest and youngest known galaxies. The results, which could offer insights into how the first galaxies formed and evolved after the Big Bang, are being presented Jan. 5 at the American Astronomical Society meeting in Washington, D.C. MORE INFO |
![]() |
Colloquia & Seminars | VIEW ALL
|
![]() |
|
|
![]() |
|
![]() |




















