Japanese VLBI Network Observations of a Gamma-Ray Narrow-Line Seyfert 1 Galaxy 1H 0323+342
文献类型：期刊论文
| 作者 | Wajima, Kiyoaki1; Fujisawa, Kenta2; Hayashida, Masaaki3; Isobe, Naoki4 |
| 刊名 | JOURNAL OF ASTROPHYSICS AND ASTRONOMY
 |
| 出版日期 | 2014-09-01 |
| 卷号 | 35期号:3页码:215-218 |
| 关键词 | Galaxies: active galaxies: individual (1H 0323+342) galaxies: Seyfert radio continuum: galaxies |
| 英文摘要 | We made simultaneous single-dish and VLBI observations of a gamma-ray narrow-line Seyfert 1 (NLS1) galaxy 1H 0323+342. We found significant flux variation at 8 GHz on a time scale of one month. The total flux density varied by 5.5% in 32 days, corresponding to a variability brightness temperature of 7.0 x 10(11) K. We also obtained brightness temperatures of greater than 5.2 x 10(10) K from the VLBI images. These high brightness temperatures suggest that the source has nonthermal processes in the central engine. The source structure could be modelled by two elliptical Gaussian components on the parsec scales. The flux of the central component decreases in the same way as the total flux density, showing that the short-term variability is mainly associated with this component. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; RADIO-LOUD ; VARIABILITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000350481700004 |
| 源URL | [http://119.78.226.72/handle/331011/18161]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Yamaguchi Univ, Res Inst Time Studies, Yamaguchi 7538511, Japan 3.Univ Tokyo, Inst Cosm Ray Res, Chiba 2778582, Japan 4.Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2525210, Japan |
| 推荐引用方式 GB/T 7714 | Wajima, Kiyoaki,Fujisawa, Kenta,Hayashida, Masaaki,et al. Japanese VLBI Network Observations of a Gamma-Ray Narrow-Line Seyfert 1 Galaxy 1H 0323+342[J]. JOURNAL OF ASTROPHYSICS AND ASTRONOMY,2014,35(3):215-218. |
| APA | Wajima, Kiyoaki,Fujisawa, Kenta,Hayashida, Masaaki,&Isobe, Naoki.(2014).Japanese VLBI Network Observations of a Gamma-Ray Narrow-Line Seyfert 1 Galaxy 1H 0323+342.JOURNAL OF ASTROPHYSICS AND ASTRONOMY,35(3),215-218. |
| MLA | Wajima, Kiyoaki,et al."Japanese VLBI Network Observations of a Gamma-Ray Narrow-Line Seyfert 1 Galaxy 1H 0323+342".JOURNAL OF ASTROPHYSICS AND ASTRONOMY 35.3(2014):215-218. |
入库方式： OAI收割
来源：上海天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。