PROBING the INTERSTELLAR MEDIUM and STAR FORMATION of the MOST LUMINOUS QUASAR at z = 6.3

Ran Wang, Xue Bing Wu, Roberto Neri, Xiaohui Fan, Fabian Walter, Chris L. Carilli, Emmanuel Momjian, Frank Bertoldi, Michael A. Strauss, Qiong Li, Feige Wang, Dominik A. Riechers, Linhua Jiang, Alain Omont, Jeff Wagg, Pierre Cox

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Abstract

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.

Original languageEnglish (US)
Article number53
JournalAstrophysical Journal
Volume830
Issue number1
DOIs
StatePublished - Oct 10 2016

Fingerprint

quasars
gas
luminosity
molecular gases
galaxies
continuums
spectral energy distribution
energy
inclination
line spectra
star formation
templates
fine structure
estimates
detection
distribution

Keywords

  • galaxies: evolution
  • galaxies: high-redshift
  • galaxies: starburst
  • quasars: individual (SDSS J010013.02+280225.8)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

PROBING the INTERSTELLAR MEDIUM and STAR FORMATION of the MOST LUMINOUS QUASAR at z = 6.3. / Wang, Ran; Wu, Xue Bing; Neri, Roberto; Fan, Xiaohui; Walter, Fabian; Carilli, Chris L.; Momjian, Emmanuel; Bertoldi, Frank; Strauss, Michael A.; Li, Qiong; Wang, Feige; Riechers, Dominik A.; Jiang, Linhua; Omont, Alain; Wagg, Jeff; Cox, Pierre.

In: Astrophysical Journal, Vol. 830, No. 1, 53, 10.10.2016.

Research output: Contribution to journalArticle

Wang, R, Wu, XB, Neri, R, Fan, X, Walter, F, Carilli, CL, Momjian, E, Bertoldi, F, Strauss, MA, Li, Q, Wang, F, Riechers, DA, Jiang, L, Omont, A, Wagg, J & Cox, P 2016, 'PROBING the INTERSTELLAR MEDIUM and STAR FORMATION of the MOST LUMINOUS QUASAR at z = 6.3', Astrophysical Journal, vol. 830, no. 1, 53. https://doi.org/10.3847/0004-637X/830/1/53
Wang, Ran ; Wu, Xue Bing ; Neri, Roberto ; Fan, Xiaohui ; Walter, Fabian ; Carilli, Chris L. ; Momjian, Emmanuel ; Bertoldi, Frank ; Strauss, Michael A. ; Li, Qiong ; Wang, Feige ; Riechers, Dominik A. ; Jiang, Linhua ; Omont, Alain ; Wagg, Jeff ; Cox, Pierre. / PROBING the INTERSTELLAR MEDIUM and STAR FORMATION of the MOST LUMINOUS QUASAR at z = 6.3. In: Astrophysical Journal. 2016 ; Vol. 830, No. 1.
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abstract = "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.",
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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

PY - 2016/10/10

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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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