| First MERLIN Observations of Line Emission from the OH Megamaser toward IRAS 10173＋0828 |
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| 作者姓名： | Zhi-Yao Yu Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai National Astronomical Observatories Chinese Academy of Sciences Beijing |
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| 作者单位： | Zhi-Yao Yu Shanghai Astronomical Observatory，Chinese Academy of Sciences，Shanghai 200030 National Astronomical Observatories，Chinese Academy of Sciences，Beijing 100012 |
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| 摘 要： | Many galaxies are thought to contain massive black holes, with masses in excess of ten million solar masses, at their centres and warped circumnu-clear toruses. The best evidence comes from observing gas or masers rotating rapidly within a circumnuclear torus surrounding a central body. Here we report on the first MERLIN observations of line emission from the OH megamaser toward IRAS 10173+0828. The position of peak flux contours of the OH megamaser is consistent with that of the continuum in IRAS 10173+0828. This means that the OH megamaser is a diffuse unsaturated maser which could amplify the diffuse 18 cm continuum emission with an amplification factor of order unity.
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| 关 键 词： | 黑洞 河外星系 时空弯曲 微波激射器 |
First MERLIN Observations of Line Emission from the OH Megamaser toward IRAS 10173+0828 |
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| Zhi-Yao Yu Shanghai Astronomical Observatory,Chinese Academy of Sciences,Shanghai National Astronomical Observatories,Chinese Academy of Sciences,Beijing .First MERLIN Observations of Line Emission from the OH Megamaser toward IRAS 10173+0828[J].Chinese Journal of Astronomy and Astrophysics,2005,5(2):159-164. |
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| Authors: | Zhi-YaoYu |
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| Institution: | ShanghaiAstronomicalObservatory,ChineseAcademyofSciences,Shanghai200030 |
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| Abstract: | Many galaxies are thought to contain massive black holes, with masses in excess of ten million solar masses, at their centres and warped circumnuclear toruses. The best evidence comes from observing gas or masers rotating rapidly within a circumnuclear torus surrounding a central body. Here we report on the first MERLIN observations of line emission from the OH megamaser toward IRAS 10173 0828. The position of peak flux contours of the OH megamaser is consistent with that of the continuum in IRAS 10173 0828. This means that the OH megamaser is a diffuse unsaturated maser which could amplify the diffuse 18 cm continuum emission with an amplification factor of order unity. |
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| Keywords: | masers - ISM: molecules - galaxies: nuclei - galaxies: activegalaxies: kinematics and dynamic - galaxies: ISM |
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