中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
radiospectraofthreesupernovaremnantsg114303g116511andg116902

文献类型:期刊论文

作者Wenwu Tian1; Denis Leahy2
刊名chinesejournalofastronomyandastrophysics
出版日期2006
卷号6期号:5页码:543
ISSN号1009-9271
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.
语种英语
源URL[http://ir.bao.ac.cn/handle/114a11/51580]  
专题中国科学院国家天文台
作者单位1.中国科学院国家天文台
2.卡尔加里大学
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GB/T 7714
Wenwu Tian,Denis Leahy. radiospectraofthreesupernovaremnantsg114303g116511andg116902[J]. chinesejournalofastronomyandastrophysics,2006,6(5):543.
APA Wenwu Tian,&Denis Leahy.(2006).radiospectraofthreesupernovaremnantsg114303g116511andg116902.chinesejournalofastronomyandastrophysics,6(5),543.
MLA Wenwu Tian,et al."radiospectraofthreesupernovaremnantsg114303g116511andg116902".chinesejournalofastronomyandastrophysics 6.5(2006):543.

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来源:国家天文台

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