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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2308.05735 |
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| _version_ | 1866929459548913664 |
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| author | Furtak, Lukas J. Labbé, Ivo Zitrin, Adi Greene, Jenny E. Dayal, Pratika Chemerynska, Iryna Kokorev, Vasily Miller, Tim B. Goulding, Andy D. de Graaff, Anna Bezanson, Rachel Brammer, Gabriel B. Cutler, Sam E. Leja, Joel Pan, Richard Price, Sedona H. Wang, Bingjie Weaver, John R. Whitaker, Katherine E. Atek, Hakim Bogdán, Ákos Charlot, Stéphane Curtis-Lake, Emma van Dokkum, Pieter Endsley, Ryan Fudamoto, Yoshinobu Fujimoto, Seiji Glazebrook, Karl Juneau, Stéphanie Marchesini, Danilo Maseda, Michael V. Nelson, Erica Oesch, Pascal A. Plat, Adèle Setton, David J. Stark, Daniel P. Williams, Christina C. |
| author_facet | Furtak, Lukas J. Labbé, Ivo Zitrin, Adi Greene, Jenny E. Dayal, Pratika Chemerynska, Iryna Kokorev, Vasily Miller, Tim B. Goulding, Andy D. de Graaff, Anna Bezanson, Rachel Brammer, Gabriel B. Cutler, Sam E. Leja, Joel Pan, Richard Price, Sedona H. Wang, Bingjie Weaver, John R. Whitaker, Katherine E. Atek, Hakim Bogdán, Ákos Charlot, Stéphane Curtis-Lake, Emma van Dokkum, Pieter Endsley, Ryan Fudamoto, Yoshinobu Fujimoto, Seiji Glazebrook, Karl Juneau, Stéphanie Marchesini, Danilo Maseda, Michael V. Nelson, Erica Oesch, Pascal A. Plat, Adèle Setton, David J. Stark, Daniel P. Williams, Christina C. |
| contents | Early JWST observations have uncovered a new population of red sources that might represent a previously overlooked phase of supermassive black hole growth (Kocevski et al. 2023; Matthee et al. 2023, Labbé et al. 2023). One of the most intriguing examples is an extremely red, point-like object that was found to be triply-imaged by the strong lensing (SL) cluster Abell 2744 (Furtak et al. 2023). Here we present deep JWST/NIRSpec observations of this object, Abell2744-QSO1. The spectroscopy confirms that the three images are of the same object, and that it is a highly reddened ($A_V\simeq3$) broad emission-line Active Galactic Nucleus (AGN) at a redshift of $z_{\mathrm{spec}}=7.0451\pm0.0005$. From the width of H$β$ ($\mathrm{FWHM}=2800\pm250\,\frac{\mathrm{km}}{\mathrm{s}}$) we derive a black hole mass of $M_{\mathrm{BH}}=4_{-1}^{+2}\times10^7\,\mathrm{M}_{\odot}$. We infer a very high ratio of black hole to galaxy mass of at least 3%, an order of magnitude more than is seen in local galaxies (Bennert et al. 2011), and possibly as high as 100%. The lack of strong metal lines in the spectrum together with the high bolometric luminosity ($L_{\mathrm{bol}}=(1.1\pm0.3)\times10^{45}\,\frac{\mathrm{erg}}{\mathrm{s}}$) indicate that we are seeing the black hole in a phase of rapid growth, accreting at 30% of the Eddington limit. The rapid growth and high black hole to galaxy mass ratio of A2744-QSO1 suggest that it may represent the missing link between black hole seeds (Volonteri et al. 2021) and the first luminous quasars (Fan et al. 2022). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_05735 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | A high black hole to host mass ratio in a lensed AGN in the early Universe Furtak, Lukas J. Labbé, Ivo Zitrin, Adi Greene, Jenny E. Dayal, Pratika Chemerynska, Iryna Kokorev, Vasily Miller, Tim B. Goulding, Andy D. de Graaff, Anna Bezanson, Rachel Brammer, Gabriel B. Cutler, Sam E. Leja, Joel Pan, Richard Price, Sedona H. Wang, Bingjie Weaver, John R. Whitaker, Katherine E. Atek, Hakim Bogdán, Ákos Charlot, Stéphane Curtis-Lake, Emma van Dokkum, Pieter Endsley, Ryan Fudamoto, Yoshinobu Fujimoto, Seiji Glazebrook, Karl Juneau, Stéphanie Marchesini, Danilo Maseda, Michael V. Nelson, Erica Oesch, Pascal A. Plat, Adèle Setton, David J. Stark, Daniel P. Williams, Christina C. Astrophysics of Galaxies Early JWST observations have uncovered a new population of red sources that might represent a previously overlooked phase of supermassive black hole growth (Kocevski et al. 2023; Matthee et al. 2023, Labbé et al. 2023). One of the most intriguing examples is an extremely red, point-like object that was found to be triply-imaged by the strong lensing (SL) cluster Abell 2744 (Furtak et al. 2023). Here we present deep JWST/NIRSpec observations of this object, Abell2744-QSO1. The spectroscopy confirms that the three images are of the same object, and that it is a highly reddened ($A_V\simeq3$) broad emission-line Active Galactic Nucleus (AGN) at a redshift of $z_{\mathrm{spec}}=7.0451\pm0.0005$. From the width of H$β$ ($\mathrm{FWHM}=2800\pm250\,\frac{\mathrm{km}}{\mathrm{s}}$) we derive a black hole mass of $M_{\mathrm{BH}}=4_{-1}^{+2}\times10^7\,\mathrm{M}_{\odot}$. We infer a very high ratio of black hole to galaxy mass of at least 3%, an order of magnitude more than is seen in local galaxies (Bennert et al. 2011), and possibly as high as 100%. The lack of strong metal lines in the spectrum together with the high bolometric luminosity ($L_{\mathrm{bol}}=(1.1\pm0.3)\times10^{45}\,\frac{\mathrm{erg}}{\mathrm{s}}$) indicate that we are seeing the black hole in a phase of rapid growth, accreting at 30% of the Eddington limit. The rapid growth and high black hole to galaxy mass ratio of A2744-QSO1 suggest that it may represent the missing link between black hole seeds (Volonteri et al. 2021) and the first luminous quasars (Fan et al. 2022). |
| title | A high black hole to host mass ratio in a lensed AGN in the early Universe |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2308.05735 |