Detection of stellar light from quasar host galaxies at redshifts above 6
Ding X, Onoue M, Silverman JD, Matsuoka Y, Izumi T, Strauss MA, Jahnke K, Phillips CL, Li J, Volonteri M, Haiman Z, Andika IT, Aoki K, Baba S, Bieri R, Bosman SEI, Bottrell C, Eilers A-C, Fujimoto S, Habouzit M, Imanishi M, Inayoshi K, Iwasawa K, Kashikawa N, Kawaguchi T, Kohno K, Lee C-H, Lupi A, Lyu J, Nagao T, Overzier R, Schindler J-T, Schramm M, Shimasaku K, Toba Y, Trakhtenbrot B, Trebitsch M, Treu T, Umehata H, Venemans BP, Vestergaard M, Walter F, Wang F, Yang J. 2023. Detection of stellar light from quasar host galaxies at redshifts above 6. Nature. 621(7977), 51–55.
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Author
Ding, Xuheng;
Onoue, Masafusa;
Silverman, John D.;
Matsuoka, Yoshiki;
Izumi, Takuma;
Strauss, Michael A.;
Jahnke, Knud;
Phillips, Camryn L.;
Li, Junyao;
Volonteri, Marta;
Haiman, ZoltánISTA;
Andika, Irham Taufik
All
All
Abstract
The detection of starlight from the host galaxies of quasars during the reionization epoch (z > 6) has been elusive, even with deep Hubble Space Telescope observations1,2. The current highest redshift quasar host detected3, at z = 4.5, required the magnifying effect of a foreground lensing galaxy. Low-luminosity quasars4,5,6 from the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP)7 mitigate the challenge of detecting their underlying, previously undetected host galaxies. Here we report rest-frame optical images and spectroscopy of two HSC-SSP quasars at z > 6 with the JWST. Using near-infrared camera imaging at 3.6 and 1.5 μm and subtracting the light from the unresolved quasars, we find that the host galaxies are massive (stellar masses of 13 × and 3.4 × 1010 M☉, respectively), compact and disc-like. Near-infrared spectroscopy at medium resolution shows stellar absorption lines in the more massive quasar, confirming the detection of the host. Velocity-broadened gas in the vicinity of these quasars enables measurements of their black hole masses (1.4 × 109 and 2.0 × 108 M☉, respectively). Their location in the black hole mass–stellar mass plane is consistent with the distribution at low redshift, suggesting that the relation between black holes and their host galaxies was already in place less than a billion years after the Big Bang.
Publishing Year
Date Published
2023-06-28
Journal Title
Nature
Publisher
Springer Science and Business Media LLC
Volume
621
Issue
7977
Page
51-55
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Cite this
Ding X, Onoue M, Silverman JD, et al. Detection of stellar light from quasar host galaxies at redshifts above 6. Nature. 2023;621(7977):51-55. doi:10.1038/s41586-023-06345-5
Ding, X., Onoue, M., Silverman, J. D., Matsuoka, Y., Izumi, T., Strauss, M. A., … Yang, J. (2023). Detection of stellar light from quasar host galaxies at redshifts above 6. Nature. Springer Science and Business Media LLC. https://doi.org/10.1038/s41586-023-06345-5
Ding, Xuheng, Masafusa Onoue, John D. Silverman, Yoshiki Matsuoka, Takuma Izumi, Michael A. Strauss, Knud Jahnke, et al. “Detection of Stellar Light from Quasar Host Galaxies at Redshifts above 6.” Nature. Springer Science and Business Media LLC, 2023. https://doi.org/10.1038/s41586-023-06345-5.
X. Ding et al., “Detection of stellar light from quasar host galaxies at redshifts above 6,” Nature, vol. 621, no. 7977. Springer Science and Business Media LLC, pp. 51–55, 2023.
Ding X, Onoue M, Silverman JD, Matsuoka Y, Izumi T, Strauss MA, Jahnke K, Phillips CL, Li J, Volonteri M, Haiman Z, Andika IT, Aoki K, Baba S, Bieri R, Bosman SEI, Bottrell C, Eilers A-C, Fujimoto S, Habouzit M, Imanishi M, Inayoshi K, Iwasawa K, Kashikawa N, Kawaguchi T, Kohno K, Lee C-H, Lupi A, Lyu J, Nagao T, Overzier R, Schindler J-T, Schramm M, Shimasaku K, Toba Y, Trakhtenbrot B, Trebitsch M, Treu T, Umehata H, Venemans BP, Vestergaard M, Walter F, Wang F, Yang J. 2023. Detection of stellar light from quasar host galaxies at redshifts above 6. Nature. 621(7977), 51–55.
Ding, Xuheng, et al. “Detection of Stellar Light from Quasar Host Galaxies at Redshifts above 6.” Nature, vol. 621, no. 7977, Springer Science and Business Media LLC, 2023, pp. 51–55, doi:10.1038/s41586-023-06345-5.
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