Galaxy evolution from a microjansky radio survey

José Afonso*, Bahram Mobasher, Andrew Hopkins, Antonis Georgakakis, Lawrence Cram, Ben Chan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A strong evolution of galaxies is observed for 0 < z < 1, as evidenced by an increase of almost an order of magnitude in the galaxy star-formation rate density. However, it is known that dust obscuration has affected our understanding of galaxy evolution over this significant fraction of the age of the Universe. In order to study galaxy evolution free from dust induced biases, an ultra deep radio survey - the Phoenix Deep Survey - was initiated. With a detection limit of 60 μJy, this homogeneous survey, complemented with multiwavelength (photometric and spectroscopic) observations, is being used to build a consistent picture of galaxy evolution. The ultra-deep radio source counts are presented, and interpreted using luminosity function evolutionary models. The discovery of extremely dusty galaxies from this survey, along with the clustering properties of the sub-mJy radio population, are also discussed.

Original languageEnglish
Pages (from-to)149-153
Number of pages5
JournalAstrophysics and Space Science
Issue number1
Publication statusPublished - 2003
Externally publishedYes


  • Radio continuum: galaxies - galaxies: evolution - galaxies: starburst


Dive into the research topics of 'Galaxy evolution from a microjansky radio survey'. Together they form a unique fingerprint.

Cite this