TY - JOUR
T1 - The stellar, molecular gas, and dust content of the host galaxies of two z~2.8 dust-obscured quasars
AU - Lacy, M.
AU - Petric, A.
AU - Martinez-Sansigre, A.
AU - Ridgway, S.
AU - Sajina, A.
AU - Urrutia, T.
AU - Farrah, D.
PY - 2011/12
Y1 - 2011/12
N2 - We present optical through radio observations of the host galaxies of two dust-obscured, luminous quasars selected in the mid-infrared, at z = 2.62 and z = 2.99, including a search for CO emission. Our limits on the CO luminosities are consistent with these objects having masses of molecular gas 1010 M ☉, several times less than those of luminous submillimeter-detected galaxies at comparable redshifts. Their near-infrared spectral energy distributions, however, imply that these galaxies have high stellar masses (~1011-1012 M ☉). The relatively small reservoirs of molecular gas and low dust masses are consistent with them being relatively mature systems at high-z.
AB - We present optical through radio observations of the host galaxies of two dust-obscured, luminous quasars selected in the mid-infrared, at z = 2.62 and z = 2.99, including a search for CO emission. Our limits on the CO luminosities are consistent with these objects having masses of molecular gas 1010 M ☉, several times less than those of luminous submillimeter-detected galaxies at comparable redshifts. Their near-infrared spectral energy distributions, however, imply that these galaxies have high stellar masses (~1011-1012 M ☉). The relatively small reservoirs of molecular gas and low dust masses are consistent with them being relatively mature systems at high-z.
U2 - 10.1088/0004-6256/142/6/196
DO - 10.1088/0004-6256/142/6/196
M3 - Article
SN - 0004-6256
VL - 142
SP - 196
JO - The Astronomical Journal
JF - The Astronomical Journal
IS - 6
ER -