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Journal Article

Far-infrared Properties of the Bright, Gravitationally Lensed Quasar J0439+1634 at z = 6.5

MPS-Authors

Yang,  Jinyi
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Venemans,  Bram
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Wang,  Feige
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Fan,  Xiaohui
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Novak,  Mladen
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Decarli,  Roberto
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Walter,  Fabian
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Yue,  Minghao
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Momjian,  Emmanuel
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Keeton,  Charles R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Wang,  Ran
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Zabludoff,  Ann
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Wu,  Xue-Bing
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Bian,  Fuyan
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

External Resource

https://ui.adsabs.harvard.edu/abs/2019ApJ...880..153Y
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Citation

Yang, J., Venemans, B., Wang, F., Fan, X., Novak, M., Decarli, R., et al. (2019). Far-infrared Properties of the Bright, Gravitationally Lensed Quasar J0439+1634 at z = 6.5. The Astrophysical Journal, 880.


Cite as: https://hdl.handle.net/21.11116/0000-0005-CF64-2
Abstract
We present IRAM NOrthern Extended Millimeter Array, James Clerk Maxwell Telescope/Submillimetre Common-User Bolometer Array-2 and Very Large Array (VLA) observations of the most distant known gravitationally lensed quasar, J0439+1634 at z = 6.5. We detect strong dust emission, [C II] 158 μm, [C I] 369 μm, [O I] 146 μm, CO(6-5), CO(7-6), CO(9-8), CO(10-9), H2O 31,2−22,1, and H2O 32,1−31,2 lines, as well as a weak radio continuum. The strong [C II] line yields a systemic redshift of the host galaxy to be z = 6.5188 ± 0.0002. The magnification makes J0439+1634 the far-infrared (FIR) brightest quasar at z > 6 known, with the brightest [C II] line yet detected at this redshift. The FIR luminosity is (3.4 ± 0.2) 1013 μ −1 L ☉, where μ ∼2.6-6.6 is the magnification of the host galaxy, estimated based on the lensing configuration from HST imaging. We estimate the dust mass to be (2.2 ± 0.1) 109 μ −1 {M}ȯ . The CO spectral line energy distribution using four CO lines are best fit by a two-component model of the molecular gas excitation. The estimates of molecular gas mass derived from CO lines, and atomic carbon mass are consistent, in the range of (3.9-8.9) 1010 μ −1 {M}ȯ . The [C II]/[C I], [C II]/CO, and [O I]/[C II] line luminosity ratios suggest a photodissociation region model with more than one component. The ratio of H2O 32,1−31,2 line luminosity to L TIR is consistent with values in local and high-redshift ultra-/hyper-luminous infrared galaxies. The VLA observations reveal an unresolved radio continuum source, and indicate that J0439+1634 is a radio-quiet quasar with R = 0.05-0.17.