Discovery of a hyperluminous quasar at z = 1.62 with Eddington ratio > 3 in the eFEDS field confirmed by KOOLS-IFU on Seimei Telescope
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866909288859959296 |
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| author | Toba, Yoshiki Masu, Keito Ota, Naomi Gao, Zhen-Kai Imanishi, Masatoshi Yanagawa, Anri Yamada, Satoshi Dosaka, Itsuki Kakimoto, Takumi Kobayashi, Seira Kurokawa, Neiro Oki, Aika Soga, Sorami Shibata, Kohei Takeuchi, Sayaka Tsujita, Yukana Nagao, Tohru Tanaka, Masayuki Ueda, Yoshihiro Wang, Wei-Hao |
| author_facet | Toba, Yoshiki Masu, Keito Ota, Naomi Gao, Zhen-Kai Imanishi, Masatoshi Yanagawa, Anri Yamada, Satoshi Dosaka, Itsuki Kakimoto, Takumi Kobayashi, Seira Kurokawa, Neiro Oki, Aika Soga, Sorami Shibata, Kohei Takeuchi, Sayaka Tsujita, Yukana Nagao, Tohru Tanaka, Masayuki Ueda, Yoshihiro Wang, Wei-Hao |
| contents | We report the discovery of a hyperluminous type 1 quasar (eFEDS J082826.9-013911; eFEDSJ0828-0139) at $z_{\rm spec}$ = 1.622 with a super-Eddington ratio ($λ_{\rm Edd}$). We perform the optical spectroscopic observations with KOOLS-IFU on the Seimei Telescope. The black hole mass ($M_{\rm BH}$) based on the single-epoch method with MgII $λ$2798 is estimated to be $M_{\rm BH} = (6.2 \pm 1.2) \times 10^8$ $M_{\odot}$. To measure the precise infrared luminosity ($L_{\rm IR}$), we obtain submillimeter data taken by SCUBA-2 on JCMT and conduct the spectral energy distribution analysis with X-ray to submillimeter data. We find that $L_{\rm IR}$ of eFEDSJ0828-0139 is $L_{\rm IR} = (6.8 \pm 1.8) \times 10^{13}$ $L_{\odot}$, confirming the existence of a hypeluminous infrared galaxy (HyLIRG). $λ_{\rm Edd}$ is estimated to be $λ_{\rm Edd} = 3.6 \pm 0.7$, making it one of the quasars with the highest BH mass accretion rate at cosmic noon. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_08498 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Discovery of a hyperluminous quasar at z = 1.62 with Eddington ratio > 3 in the eFEDS field confirmed by KOOLS-IFU on Seimei Telescope Toba, Yoshiki Masu, Keito Ota, Naomi Gao, Zhen-Kai Imanishi, Masatoshi Yanagawa, Anri Yamada, Satoshi Dosaka, Itsuki Kakimoto, Takumi Kobayashi, Seira Kurokawa, Neiro Oki, Aika Soga, Sorami Shibata, Kohei Takeuchi, Sayaka Tsujita, Yukana Nagao, Tohru Tanaka, Masayuki Ueda, Yoshihiro Wang, Wei-Hao Astrophysics of Galaxies High Energy Astrophysical Phenomena We report the discovery of a hyperluminous type 1 quasar (eFEDS J082826.9-013911; eFEDSJ0828-0139) at $z_{\rm spec}$ = 1.622 with a super-Eddington ratio ($λ_{\rm Edd}$). We perform the optical spectroscopic observations with KOOLS-IFU on the Seimei Telescope. The black hole mass ($M_{\rm BH}$) based on the single-epoch method with MgII $λ$2798 is estimated to be $M_{\rm BH} = (6.2 \pm 1.2) \times 10^8$ $M_{\odot}$. To measure the precise infrared luminosity ($L_{\rm IR}$), we obtain submillimeter data taken by SCUBA-2 on JCMT and conduct the spectral energy distribution analysis with X-ray to submillimeter data. We find that $L_{\rm IR}$ of eFEDSJ0828-0139 is $L_{\rm IR} = (6.8 \pm 1.8) \times 10^{13}$ $L_{\odot}$, confirming the existence of a hypeluminous infrared galaxy (HyLIRG). $λ_{\rm Edd}$ is estimated to be $λ_{\rm Edd} = 3.6 \pm 0.7$, making it one of the quasars with the highest BH mass accretion rate at cosmic noon. |
| title | Discovery of a hyperluminous quasar at z = 1.62 with Eddington ratio > 3 in the eFEDS field confirmed by KOOLS-IFU on Seimei Telescope |
| topic | Astrophysics of Galaxies High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2408.08498 |