%0 Generic %1 anh2013resolving %A Anh, P. T. %A Boone, F. %A Hoai, D. T. %A Nhung, P. T. %A Weiß, A. %A Kneib, J. P. %A Beelen, A. %A Salomé, P. %D 2013 %K gas molecular quasar %T Resolving the molecular gas around the lensed quasar RXJ0911.4+0551 %U http://arxiv.org/abs/1303.6110 %X We report on high angular resolution observations of the CO(7-6) line and millimeter continuum in the host galaxy of the gravitationally lensed (z~2.8) quasar RXJ0911.4+0551 using the Plateau de Bure Interferometer. Our CO observations resolve the molecular disk of the source. Using a lens model based on HST observations we fit source models to the observed visibilities. We estimate a molecular disk radius of 1$\pm$0.2 kpc and an inclination of 69$\pm$6\deg, the continuum is more compact and is only marginally resolved by our observations. The relatively low molecular gas mass, $Mgas=(2.3\pm 0.5)10^9$ Msolar, and far infrared luminosity, $LFIR=(7.21.5) 10^11$ Lsolar, of this quasar could be explained by its relatively low dynamical mass, $Mdyn=(3.90.9)10^9$ Msolar. It would be a scaled-down version the QSOs usually found at high-z. The FIR and CO luminosities lie on the correlation found for QSOs from low to high redshifts and the gas-to-dust ratio ($4517$) is similar to the one measured in the z=6.4 QSO, SDSS J1148+5251. Differential magnification affects the continuum-to-line luminosity ratio, the line profile and possibly the spectral energy distribution.

@misc{anh2013resolving, abstract = {We report on high angular resolution observations of the CO(7-6) line and millimeter continuum in the host galaxy of the gravitationally lensed (z~2.8) quasar RXJ0911.4+0551 using the Plateau de Bure Interferometer. Our CO observations resolve the molecular disk of the source. Using a lens model based on HST observations we fit source models to the observed visibilities. We estimate a molecular disk radius of 1$\pm$0.2 kpc and an inclination of 69$\pm$6\deg, the continuum is more compact and is only marginally resolved by our observations. The relatively low molecular gas mass, $Mgas=(2.3\pm 0.5)\times 10^{9}$ Msolar, and far infrared luminosity, $LFIR=(7.2\pm 1.5) \times 10^{11}$ Lsolar, of this quasar could be explained by its relatively low dynamical mass, $Mdyn=(3.9\pm 0.9)\times 10^9$ Msolar. It would be a scaled-down version the QSOs usually found at high-z. The FIR and CO luminosities lie on the correlation found for QSOs from low to high redshifts and the gas-to-dust ratio ($45\pm 17$) is similar to the one measured in the z=6.4 QSO, SDSS J1148+5251. Differential magnification affects the continuum-to-line luminosity ratio, the line profile and possibly the spectral energy distribution.}, added-at = {2013-03-26T15:31:15.000+0100}, author = {Anh, P. T. and Boone, F. and Hoai, D. T. and Nhung, P. T. and Weiß, A. and Kneib, J. P. and Beelen, A. and Salomé, P.}, biburl = {https://www.bibsonomy.org/bibtex/28925f015dea98a7722a017b4c861dcff/miki}, description = {[1303.6110] Resolving the molecular gas around the lensed quasar RXJ0911.4+0551}, interhash = {e19f33e8883e4c412fc99e5c725ef193}, intrahash = {8925f015dea98a7722a017b4c861dcff}, keywords = {gas molecular quasar}, note = {cite arxiv:1303.6110Comment: Accepted for publication in A&A}, timestamp = {2013-03-26T15:31:16.000+0100}, title = {Resolving the molecular gas around the lensed quasar RXJ0911.4+0551}, url = {http://arxiv.org/abs/1303.6110}, year = 2013 }