2013A&A...552L..12A


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.10CET03:18:23

2013A&A...552L..12A - Astronomy and Astrophysics, volume 552, L12-12 (2013/4-1)

Resolving the molecular gas around the lensed quasar RX J0911.4+0551.

ANH P.T., BOONE F., HOAI D.T., NHUNG P.T., WEISS A., KNEIB J.-P., BEELEN A. and SALOME P.

Abstract (from CDS):

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±0.2kpc and an inclination of 69±6°, the continuum is more compact and is only marginally resolved by our observations. The relatively low molecular gas mass, Mgas=(2.3 ±0.5)x109M, and far-infrared (FIR) luminosity, LFIR=(7.2±1.5)x1011L, of this quasar could be explained by its relatively low dynamical mass, Mdyn=(3.9±0.9)x109M. It would be a scaled-down version the quasi-stellar objects (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±17) is similar to the one measured in the z=6.4 QSO, SDSSJ1148+5251. Differential magnification affects the continuum-to-line luminosity ratio, the line profile, and possibly the spectral energy distribution.

Abstract Copyright:

Journal keyword(s): gravitational lensing: strong - Galaxy: evolution - quasars: general - submillimeter: galaxies

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 3C 111 Sy1 04 18 21.2773655604 +38 01 35.801523843   19.75 18.05     ~ 841 1
2 * zet Ori A ** 05 40 45.527 -01 56 33.26 0.50 1.77 1.88 1.84 2.04 O9.2IbvarNwk 641 0
3 QSO J0854+2006 BLL 08 54 48.8749311881 +20 06 30.642936668   15.91 15.43 15.56   ~ 1949 1
4 4C 01.24B QSO 09 09 10.0921832543 +01 21 35.611559836   17.63 17.29 17.04   ~ 357 2
5 QSO B0908+0603 QSO 09 11 27.6052 +05 50 54.281   18.44 18.16     ~ 204 2
6 ICRF J092703.0+390220 Sy1 09 27 03.0139516273 +39 02 20.847968628   17.17 17.00 16.486   ~ 921 1
7 QSO J1148+5251 QSO 11 48 16.647 +52 51 50.31   25.73 25.04     ~ 378 0
8 QSO J1415+1129 QSO 14 15 46.25 +11 29 43.4   17.63 17.23     ~ 581 1

    Equat.    Gal    SGal    Ecl

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2019.12.10-03:18:23

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