Detecting the Most Distant (z>7) Objects with ALMA

Details Detecting the Most Distant (z>7) Objects with ALMA Detecting the Most Distant (z>7) Objects with ALMA

2007-04-14

arxiv.org/abs/0704.1858v1

Astrophys.Space Sci.313:313-316,2008

Astronomy and Astrophysics

Astrophysics

to appear in Astrophysics and Space Science, "Science with ALMA: a new era for Astrophysics", ed. R. Bachiller

Scientific paper

10.1007/s10509-007-9634-1

Detecting and studying objects at the highest redshifts, out to the end of Cosmic Reionization at z>7, is clearly a key science goal of ALMA. ALMA will in principle be able to detect objects in this redshift range both from high-J (J>7) CO transitions and emission from ionized carbon, [CII], which is one of the main cooling lines of the ISM. ALMA will even be able to resolve this emission for individual targets, which will be one of the few ways to determine dynamical masses for systems in the Epoch of Reionization. We discuss some of the current problems regarding the detection and characterization of objects at high redshifts and how ALMA will eliminate most (but not all) of them.

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