AVƵ

Press Releases

Far away secrets unveiled - Hubble and Spitzer space telescopes “spy” one of the youngest galaxies in the Universe

Press release EPFL + UniGE (7 february 2014)

Even the most distant galaxies cannot escape astronomers’ reach. The images obtained thanks to the Hubble and  Spitzer space telescopes have contributed to a better understanding of the process of galaxy genesis. A team made  of members from EPFL and the AVƵ, associated with French, American and Spanish researchers, reports its initial findings.

abell2744_composition_2.jpg

Image of the distant galaxy, named Y1, disovered behind the galaxy cluster Abell 2744.  The photometric redshift of the galaxy is z~8.0, placing it at approximately 13 billion lightyears. The galaxy is thus seen as it was 650 million years after the Big Bang, providing a unique view on galaxy formation in the early Universe, during the so-called phase of cosmic reionization.

  • Animations: Travel to the distant galaxy discovered ( [2 MB], )
  • (pdf, Letter to appear in Astronomy & Astrophysics):
    "The first Frontier Fields cluster: 4.5 micron excess in a z ~ 8 galaxy candidate in Abell 2744", N. Laporte et al., 2014, A&A, in press
  • Links to other press releases:

Associated groups/researchers :

  • Daniel SCHAERER - UniGE: ,
  • Hakim ATEK, Jean-Paul KNEIB - EPFL
  • Nicolas LAPORTE, A. Streblyanska, Ismael Pérez-Fournon, P. Martinez-Navajas, R. Marques-Chaves -IAC
  • Frédéric BOONE, Roser Pelló -IRAP
  • Johan RICHARD - CRAL
  • Benjamin CLEMENT, Eiichi EGAMI - Tucson

Articles/sites relating the discovery:

  • NASA , USA
  • , USA
  • , F
  • , UK
  • ...in China:
  • , D
  • , D
  • , I
  • , E
  • ...many others

Other links:

  • NASA:
Feb 7, 2014

Press Releases