TY - JOUR
T1 - PROBING the INTERSTELLAR MEDIUM and STAR FORMATION of the MOST LUMINOUS QUASAR at z = 6.3
AU - Wang, Ran
AU - Wu, Xue Bing
AU - Neri, Roberto
AU - Fan, Xiaohui
AU - Walter, Fabian
AU - Carilli, Chris L.
AU - Momjian, Emmanuel
AU - Bertoldi, Frank
AU - Strauss, Michael A.
AU - Li, Qiong
AU - Wang, Feige
AU - Riechers, Dominik A.
AU - Jiang, Linhua
AU - Omont, Alain
AU - Wagg, Jeff
AU - Cox, Pierre
N1 - Publisher Copyright:
© 2016. The American Astronomical Society. All rights reserved.
PY - 2016/10/10
Y1 - 2016/10/10
N2 - We report new IRAM/PdBI, JCMT/SCUBA-2, and VLA observations of the ultraluminous quasar SDSS J010013.02+280225.8 (hereafter, J0100+2802) at z = 6.3, which hosts the most massive supermassive black hole (SMBH), 1.24 × 1010 M⊙, that is known at z > 6. We detect the [C ii] 158 μm fine structure line and molecular CO(6-5) line and continuum emission at 353, 260, and 3 GHz from this quasar. The CO(2-1) line and the underlying continuum at 32 GHz are also marginally detected. The [C ii] and CO detections suggest active star formation and highly excited molecular gas in the quasar host galaxy. The redshift determined with the [C ii] and CO lines shows a velocity offset of from that measured with the quasar Mg ii line. The CO (2-1) line luminosity provides a direct constraint on the molecular gas mass, which is about (1.0 ± 0.3) × 1010 M⊙. We estimate the FIR luminosity to be (3.5 ± 0.7) × 1012 L⊙, and the UV-to-FIR spectral energy distribution of J0100+2802 is consistent with the templates of the local optically luminous quasars. The derived [C ii]-to-FIR luminosity ratio of J0100+2802 is 0.0010 ± 0.0002, which is slightly higher than the values of the most FIR luminous quasars at z ∼ 6. We investigate the constraint on the host galaxy dynamical mass of J0100+2802 based on the [C ii] line spectrum. It is likely that this ultraluminous quasar lies above the local SMBH-galaxy mass relationship, unless we are viewing the system at a small inclination angle.
AB - We report new IRAM/PdBI, JCMT/SCUBA-2, and VLA observations of the ultraluminous quasar SDSS J010013.02+280225.8 (hereafter, J0100+2802) at z = 6.3, which hosts the most massive supermassive black hole (SMBH), 1.24 × 1010 M⊙, that is known at z > 6. We detect the [C ii] 158 μm fine structure line and molecular CO(6-5) line and continuum emission at 353, 260, and 3 GHz from this quasar. The CO(2-1) line and the underlying continuum at 32 GHz are also marginally detected. The [C ii] and CO detections suggest active star formation and highly excited molecular gas in the quasar host galaxy. The redshift determined with the [C ii] and CO lines shows a velocity offset of from that measured with the quasar Mg ii line. The CO (2-1) line luminosity provides a direct constraint on the molecular gas mass, which is about (1.0 ± 0.3) × 1010 M⊙. We estimate the FIR luminosity to be (3.5 ± 0.7) × 1012 L⊙, and the UV-to-FIR spectral energy distribution of J0100+2802 is consistent with the templates of the local optically luminous quasars. The derived [C ii]-to-FIR luminosity ratio of J0100+2802 is 0.0010 ± 0.0002, which is slightly higher than the values of the most FIR luminous quasars at z ∼ 6. We investigate the constraint on the host galaxy dynamical mass of J0100+2802 based on the [C ii] line spectrum. It is likely that this ultraluminous quasar lies above the local SMBH-galaxy mass relationship, unless we are viewing the system at a small inclination angle.
KW - galaxies: evolution
KW - galaxies: high-redshift
KW - galaxies: starburst
KW - quasars: individual (SDSS J010013.02+280225.8)
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U2 - 10.3847/0004-637X/830/1/53
DO - 10.3847/0004-637X/830/1/53
M3 - Article
AN - SCOPUS:84991110322
SN - 0004-637X
VL - 830
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1
M1 - 53
ER -