ALMA and the First Galaxies

Details ALMA and the First Galaxies ALMA and the First Galaxies

2010-04-25

arxiv.org/abs/1004.4364v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

8 pages, 5 figures, Proceedings of Austin, Texas Conference, 2010, "The First Stars and Galaxies: Challenges for the Next Deca

Scientific paper

ALMA will become fully operational in a few years and open a new window on primordial galaxies. The mm and submm domain is privileged, since the peak of dust emission between 60 and 100 microns is redshifted there for z= 5-10, and the continuum benefits from a negative K-correction. At least 100 times more sources than with present instruments could be discovered, so that more normal galaxies, with lower luminosities than huge starbursts and quasars will be surveyed. The high spatial resolution will suppress the confusion, which plagues today single dish bolometer surveys. Several CO lines detected in broad-band receivers will determine the redshift of objects too obscured to be seen in the optical. With the present instrumentation, only the most massive and gas rich objects have been detected in CO at high z, most of them being ultra-luminous starbursts with an extremely high star formation efficiency. However, selection biases are omni-present in this domain, and ALMA will statistically clarify the evolution of star formation efficiency, being fully complementary to JWST and ELTs.

Affiliated with

Also associated with

No associations

Rating

ALMA and the First Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with ALMA and the First Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ALMA and the First Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-186558