Radio spectra of three supernova remnants: G114.3+0.3, G116.5+1.1 and G116.9+0.2
文献类型：期刊论文
| 作者 | Tian, Wen-Wu ; Leahy, Denis
|
| 刊名 | CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2006 |
| 卷号 | 6期号:5页码:543-550 |
| 关键词 | ISM : individual G114.3+0.3,G116.5+1.1,G116.9+0.2 radio continuum : ISM |
| 英文摘要 | Presented are new images of supernova. remnants G114.3+0.3, G116.5+1.1 and G116.9+0.2 (CTB 1) at 408 MHz from the Canadian Galactic Plane Survey (CGPS). We also use the 1420 MHz images from the CGPS in a study of their 408-1420 MHz spectral indices. The flux densities at 408 MHz and 1420 MHz, corrected for flux densities from compact sources within the SNRs, are 12 +/- 6 Jy and 9.8 +/- 0.8 Jy for G114.3+0.3, 15.0 +/- 1.5 Jy and 10.6 +/- 0.6 Jy for G116.5+1.1, 15.0+/-1.5 Jy and 8.1 +/- 0.4 Jy for G116.9+0.2. The integrated flux density-based spectral indices (S-nu proportional to nu(-alpha)) are alpha=0.16 +/- 0.41, 0.28 +/- 0.09 and 0.49 +/- 0.09 for G114.3+0.3, G116.5+1.1 and. G116.9+0.2, respectively. Their T-T plot-based spectral indices are 0.68 +/- 0.48, 0.28 +/- 0.15, and 0.48 +/- 0.04, in agreement with the integrated flux density-based spectral indices. New flux densities are derived at 2695 MHz which are significantly larger than previous values. The new 408, 1420 and 2695 MHz flux densities and published values at other frequencies, where images are not available, are fitted After correcting for contributions from compact sources, to derive their multi-frequency spectral indices. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000241487800005 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7128]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Calgary, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada |
| 推荐引用方式 GB/T 7714 | Tian, Wen-Wu,Leahy, Denis. Radio spectra of three supernova remnants: G114.3+0.3, G116.5+1.1 and G116.9+0.2[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2006,6(5):543-550. |
| APA | Tian, Wen-Wu,&Leahy, Denis.(2006).Radio spectra of three supernova remnants: G114.3+0.3, G116.5+1.1 and G116.9+0.2.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,6(5),543-550. |
| MLA | Tian, Wen-Wu,et al."Radio spectra of three supernova remnants: G114.3+0.3, G116.5+1.1 and G116.9+0.2".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 6.5(2006):543-550. |
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来源：国家天文台
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