Interferometric Followup Of CO (1-0) Detections With The Zpectrometer

Details Interferometric Followup Of CO (1-0) Detections With The Zpectrometer Interferometric Followup Of CO (1-0) Detections With The Zpectrometer

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21541211s&link_type=abstract

American Astronomical Society, AAS Meeting #215, #412.11; Bulletin of the American Astronomical Society, Vol. 42, p.248

Astronomy and Astrophysics

Astronomy

Scientific paper

We present interferometric followup observations of several high-z sources detected in CO (1-0) with the Zpectrometer on the Green Bank Telescope (West Virginia). The Cloverleaf quazar at z=2.558 and submillimeter galaxy (SMG) SMM J14011+0252 at z=2.565 have been followed up on the EVLA with the new Ka receivers in an attempt to spatially resolve the CO (1-0) emission. Such maps are important since they may break the degeneracy between CO excitation and lensing magnification, allowing us to determine if the CO emission in such systems comes from a single component rather than regions spanning a range of temperature and density. Additionally, we have followed up our detection of SMM J00266+1708 at z=2.73 (one of only two SMGs to be detected in the CO (1-0) line prior to any higher-J transitions) at the Plateau de Bure Interferometer (France) in the CO (3-2) and CO (5-4) lines. Given this source's high obscuration and rare J=1-0 initial detection, SMM J00266+1708 offers a unique chance to escape possible biases in SMG characterization that have been based both on the most luminous (least-obscured) observed sources and gas properties derived from only mid-J transitions.

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