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Detecting the First Quasars with ALMA

Published online by Cambridge University Press:  03 June 2010

Dominik R. G. Schleicher ,
Marco Spaans  and
Ralf S. Klessen
Dominik R. G. Schleicher
Affiliation:
Leiden Observatory, P.O. Box 9513, NL-2300 RA Leiden, the Netherlands Email: schleicher@strw.leidenuniv.nl ESO Garching, Karl-Schwarzschild-Str. 2, 85748 Garching bei München, Germany Zentrum für Astronomie der Universität Heidelberg, Institut für Theoretische Astrophysik, Albert-Ueberle-Str. 2, 69120 Heidelberg, Germany.
Marco Spaans
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, P.O. Box 800, 9700 AV, Groningen, the Netherlands Email: spaans@astro.rug.nl
Ralf S. Klessen
Affiliation:
Zentrum für Astronomie der Universität Heidelberg, Institut für Theoretische Astrophysik, Albert-Ueberle-Str. 2, 69120 Heidelberg, Germany.
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We show that ALMA is the first telescope that can probe the dust-obscured central region of quasars at z > 5 with a maximum resolution of ~ 30 pc employing the 18 km baseline.

We explore the possibility of detecting the first quasars with ALMA (Schleicher, Spaans, & Klessen 2009). For this purpose, we adopt the Seyfert 2 galaxy NGC 1068 as a reference system and calculate the expected fluxes if this galaxy were placed at high redshift. This choice is motivated by the detailed observations available for this system and the absence of any indication for an evolution in metallicity in high-redshift quasars. It is a conservative choice due to the moderate column densities in NGC 1068, leading to moderate fluxes.

Keywords

astrochemistrytelescopesgalaxies: activegalaxies: high-redshiftgalaxies: ISM
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S267: Co-Evolution of Central Black Holes and Galaxies , August 2009 , pp. 52
Copyright
Copyright © International Astronomical Union 2010

References

Meijerink, R. & Spaans, M. 2005, A&A, 436, 397Google Scholar
Schleicher, D. R. G., Spaans, M., & Klessen, R. S. 2009, submitted to A&AGoogle Scholar