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First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
https://hiroshima.repo.nii.ac.jp/records/2008902
https://hiroshima.repo.nii.ac.jp/records/2008902544b9fd2-9b6f-4a50-abe7-bdae1dd404fb
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ApJL_875_L1.pdf (2.5 MB)
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| Item type | デフォルトアイテムタイプ_（フル）(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-03-18 | |||||||||
| タイトル | ||||||||||
| タイトル | First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole | |||||||||
| 言語 | en | |||||||||
| 作成者 |
The Event Horizon Telescope Collaboration
× The Event Horizon Telescope Collaboration
× Sasada, Mahito
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| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 権利情報 | ||||||||||
| 権利情報 | © 2019. The American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | |||||||||
| 主題 | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | accretion | |||||||||
| 主題 | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | accretion disks | |||||||||
| 主題 | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | black hole physics | |||||||||
| 主題 | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | galaxies: active | |||||||||
| 主題 | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | galaxies: individual (M87) | |||||||||
| 主題 | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | galaxies: jets | |||||||||
| 主題 | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | gravitation | |||||||||
| 内容記述 | ||||||||||
| 内容記述 | When surrounded by a transparent emission region, black holes are expected to reveal a dark shadow caused by gravitational light bending and photon capture at the event horizon. To image and study this phenomenon, we have assembled the Event Horizon Telescope, a global very long baseline interferometry array observing at a wavelength of 1.3 mm. This allows us to reconstruct event-horizon-scale images of the supermassive black hole candidate in the center of the giant elliptical galaxy M87. We have resolved the central compact radio source as an asymmetric bright emission ring with a diameter of 42±3μas, which is circular and encompasses a central depression in brightness with a flux ratio ≳10:1. The emission ring is recovered using different calibration and imaging schemes, with its diameter and width remaining stable over four different observations carried out in different days. Overall, the observed image is consistent with expectations for the shadow of a Kerr black hole as predicted by general relativity. The asymmetry in brightness in the ring can be explained in terms of relativistic beaming of the emission from a plasma rotating close to the speed of light around a black hole. We compare our images to an extensive library of ray-traced general-relativistic magnetohydrodynamic simulations of black holes and derive a central mass of M=(6.5±0.7)×10⁹M_⊙. Our radio-wave observations thus provide powerful evidence for the presence of supermassive black holes in centers of galaxies and as the central engines of active galactic nuclei. They also present a new tool to explore gravity in its most extreme limit and on a mass scale that was so far not accessible. | |||||||||
| 言語 | en | |||||||||
| 出版者 | ||||||||||
| 出版者 | The American Astronomical Society | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | journal article | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 関連情報 | ||||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | 10.3847/2041-8213/ab0ec7 | |||||||||
| 関連情報 | ||||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | https://doi.org/10.3847/2041-8213/ab0ec7 | |||||||||
| 収録物識別子 | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 2041-8205 | |||||||||
| 収録物識別子 | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 2041-8213 | |||||||||
| 開始ページ | ||||||||||
| 開始ページ | L1 | |||||||||
| 書誌情報 |
The Astrophysical Journal Letters The Astrophysical Journal Letters 巻 875, 号 1, p. L1, 発行日 2019-04-10 |
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| 旧ID | 48224 | |||||||||
