Intensity distribution function and statistical properties of fast radio bursts
文献类型：期刊论文
| 作者 | Li, Long-Biao1,2; Huang, Yong-Feng1,2; Zhang, Zhi-Bin3; Li, Di4,5 ; Li, Bing1,2,6
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2017 |
| 卷号 | 17期号:1 |
| 关键词 | pulsars: general stars: neutron radio continuum: general intergalactic medium methods:statistical |
| 英文摘要 | Fast Radio Bursts (FRBs) are intense radio flashes from the sky that are characterized by millisecond durations and Jansky-level flux densities. We carried out a statistical analysis on FRBs that have been discovered. Their mean dispersion measure, after subtracting the contribution from the interstellar medium of our Galaxy, is found to be similar to 660 pc cm(3), supporting their being from a cosmological origin. Their energy released in the radio band spans about two orders of magnitude, with a mean value of similar to 10(39) erg. More interestingly, although the study of FRBs is still in a very early phase, the published collection of FRBs enables us to derive a useful intensity distribution function. For the 16 non-repeating FRBs detected by the Parkes telescope and the Green Bank Telescope, the intensity distribution can be described as dN/dF(obs) = (4.1 +/- 1.3) x 10(3) F-obs(-1.1 +/- 0.2) sky(-1)d(-1), where F-obs is the observed radio fluence in units of Jy ms. Here the power-law index is significantly flatter than the expected value of 2.5 for standard candles distributed homogeneously in a flat Euclidean space. Based on this intensity distribution function, the Five-hundred-meter Aperture Spherical radio Telescope (FAST) is predicted to be able to detect about five FRBs for every 1000 h of observation time. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | GAMMA-RAY BURSTS ; NEUTRON-STARS ; GIANT PULSES ; COSMOLOGICAL DISTANCES ; SUPERGIANT PULSES ; CRAB PULSAR ; BLACK-HOLES ; POPULATION ; SEARCH ; AFTERGLOWS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000396489000006 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8262]  |
| 专题 | 国家天文台_射电天文研究部 |
| 作者单位 | 1.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210046, Jiangsu, Peoples R China 2.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210046, Jiangsu, Peoples R China 3.Guizhou Univ, Dept Phys, Coll Sci, Guiyang 550025, Peoples R China 4.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 5.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China 6.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Long-Biao,Huang, Yong-Feng,Zhang, Zhi-Bin,et al. Intensity distribution function and statistical properties of fast radio bursts[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2017,17(1). |
| APA | Li, Long-Biao,Huang, Yong-Feng,Zhang, Zhi-Bin,Li, Di,&Li, Bing.(2017).Intensity distribution function and statistical properties of fast radio bursts.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,17(1). |
| MLA | Li, Long-Biao,et al."Intensity distribution function and statistical properties of fast radio bursts".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 17.1(2017). |
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来源：国家天文台
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