10 research outputs found

    A search for clusters at high redshift. IV. Spectroscopy of Hα emitters in a proto-cluster at z = 2.16

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    Wetensch. publicatieFaculteit der Wiskunde en Natuurwetenschappe

    A search for clusters at high redshift. IV. Spectroscopy of Hα emitters in a proto-cluster at z = 2.16

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    Wetensch. publicatieFaculteit der Wiskunde en Natuurwetenschappe

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

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