CORC  > 云南天文台  > 中国科学院云南天文台  > 射电天文研究组
Interstellar scintillation observations for PSR J0835-4510 at 6656 MHz
Xu YH(徐永华)5; Shi, Xun4; Lee, Kejia2,3; Hao LF(郝龙飞)5; Li ZX(李志玄)5; Wang M(汪敏)5; Yuan, Jianping1; Xu, Heng2; Wu, Ziwei2; Jiang, Jinchen2
刊名Monthly Notices of the Royal Astronomical Society
2023-11-01
卷号526期号:1页码:1246-1259
关键词pulsars: individual: PSR J0835−451 ISM: structure radio continuum: general
ISSN号0035-8711
DOI10.1093/mnras/stad2837
产权排序第1完成单位
文献子类Journal article (JA)
英文摘要

Scintillation phenomena of pulsars provide an important tool for studying interstellar scattering screens and their properties. In this paper, we report pulsar scintillation phenomena of the PSR J0835-4510 at multiple epochs between MJD 58592 and MJD 58843 using the Kunming 40 m radio telescope at a centre frequency of 6656 MHz. We have measured the dynamic spectrum, and derived the scintillation time, bandwidth, and secondary spectrum at each observation epoch. For the first time, we report the detection of parabolic arc structure in the secondary spectra of PSR J0835-4510. Parabolic arcs with varying curvatures appear at all our observation epochs. We used both anisotropic and isotropic scattering screen models to fit the annual variations of arc curvature. While both models can fit the arc curvature variations equally well, the anisotropic model also explains the parabolic arc morphology and its time variation. In this model, the scattering is located at a fractional distance of s = 0.35 ± 0.10, or a distance Ds = 0.19 ± 0.03 kpc from the Earth, likely corresponding to the boundary of the Local Bubble. © 2023 The Author(s).

学科主题天文学 ; 射电天文学
URL标识查看原文
资助项目National Natural Science Foundation of China[12063003] ; National Natural Science Foundation of China[12073076] ; National Natural Science Foundation of China[12173087] ; National Natural Science Foundation of China[12373025] ; National Key Research and Development Program of China[2022YFC2205203]
语种英语
资助机构National Natural Science Foundation of China[12063003, 12073076, 12173087, 12373025] ; National Key Research and Development Program of China[2022YFC2205203]
内容类型期刊论文
源URL[http://ir.ynao.ac.cn/handle/114a53/26368]  
专题云南天文台_射电天文研究组
作者单位1.Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, 830011, China
2.National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101, China;
3.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing, 100871, China;
4.South-Western Institute for Astronomy Research (SWIFAR), Yunnan University, Kunming, 650500, China;
5.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650011, China;
推荐引用方式
GB/T 7714
Xu YH,Shi, Xun,Lee, Kejia,et al. Interstellar scintillation observations for PSR J0835-4510 at 6656 MHz[J]. Monthly Notices of the Royal Astronomical Society,2023,526(1):1246-1259.
APA Xu YH.,Shi, Xun.,Lee, Kejia.,Hao LF.,Li ZX.,...&Cao S.(2023).Interstellar scintillation observations for PSR J0835-4510 at 6656 MHz.Monthly Notices of the Royal Astronomical Society,526(1),1246-1259.
MLA Xu YH,et al."Interstellar scintillation observations for PSR J0835-4510 at 6656 MHz".Monthly Notices of the Royal Astronomical Society 526.1(2023):1246-1259.
个性服务
查看访问统计
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。


©版权所有 ©2017 CSpace - Powered by CSpace