intensitydistributionfunctionandstatisticalpropertiesoffastradiobursts
文献类型：期刊论文
| 作者 | Li Longbiao3; Huang Yongfeng3; Zhang Zhibin2; Li Di1 ; Li Bing3
|
| 刊名 | researchinastronomyandastrophysics
 |
| 出版日期 | 2017 |
| 卷号 | 17期号:1页码:10 |
| ISSN号 | 1674-4527 |
| 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. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/40690]  |
| 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.贵州大学 3.南京大学 |
| 推荐引用方式 GB/T 7714 | Li Longbiao,Huang Yongfeng,Zhang Zhibin,et al. intensitydistributionfunctionandstatisticalpropertiesoffastradiobursts[J]. researchinastronomyandastrophysics,2017,17(1):10. |
| APA | Li Longbiao,Huang Yongfeng,Zhang Zhibin,Li Di,&Li Bing.(2017).intensitydistributionfunctionandstatisticalpropertiesoffastradiobursts.researchinastronomyandastrophysics,17(1),10. |
| MLA | Li Longbiao,et al."intensitydistributionfunctionandstatisticalpropertiesoffastradiobursts".researchinastronomyandastrophysics 17.1(2017):10. |
入库方式： OAI收割
来源：国家天文台
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。