Physics
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006iaujd...7e..18c&link_type=abstract
The Universe at z > 6, 26th meeting of the IAU, Joint Discussion 7, 17-18 August 2006, Prague, Czech Republic, JD07, #18
Physics
Scientific paper
I review cm and mm observations of the host galaxies of z>6 SDSS QSOs. These observations are the only direct probe of the host galaxies of the most distant QSOs, and reveal that about 1/3 of the hosts contain massive reservoirs of dust (> 1e8 M_sun) and molecular gas (> 1e10 M_sun) -- the fuel for galaxy formation, and also indicate coeval starbursts at a rate of order 1e3 M_sun/ year, adequate to form a large elliptical galaxy in a dynamical timescale. These data imply that a highly metal enriched, molecular ISM, can be generated in galaxies within 870 Myr of the big bang. High resolution imaging of the gas also provides an estimate of the host galaxy dynamical mass. However, current observations are restricted to rare, hyper-luminous IR galaxies. I will close by considering the prospects of observing the gas, dust, and star formation in the first 'normal' galaxies (eg. Ly alpha galaxies) into cosmic reionization (z>6), using ALMA and the EVLA.
Bertoldi Frank
Carilli Chris L.
Cox Pierre
Menten Karl
Walter Fabian
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