Dust and Molecular Content of the Lensed Quasar, MG0751+2716 at z=3.2

Details Dust and Molecular Content of the Lensed Quasar, MG0751+2716 at z=3.2 Dust and Molecular Content of the Lensed Quasar, MG0751+2716 at z=3.2

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jena.confq..60a&link_type=abstract

"JENAM-2007, "Our non-stable Universe", held 20-25 August 2007 in Yerevan, Armenia. Abstract book, p. 60-60"

Computer Science

Scientific paper

We used the IRAM interferometer to measure CO lines and continuum flux between 1 and 3mm in the lensed quasar MG0751+2716 at z=3.2. We use HST data and the high resolution MERLIN map at 6.2cm to build an improved model of the lens. Dust and molecules are closely related in this source. The SED from 0.45 to 204mm exhibits the signatures of two components: synchrotron emission from a core/jet system and thermal emission related to warm dust. CO line intensities are compatible with warm, dense molecular gas around the AGN, in a ring-like structure ~460pc in radius. The new lens model predicts an amplification from 16 to 25, depending on the frequency. The mass of molecular gas is about 10^10 solar masses, consistent with the dynamical mass. The gas to dust ratio is around 100.

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