Rotation measure variations for 20 millisecond pulsars
文献类型：期刊论文
| 作者 | Yan, W. M.1,2,3; Manchester, R. N.3; Hobbs, G.3; van Straten, W.4; Reynolds, J. E.3; Wang, N.1,5; Bailes, M.4; Bhat, N. D. R.4; Burke-Spolaor, S.3; Champion, D. J.6 |
| 刊名 | ASTROPHYSICS AND SPACE SCIENCE
 |
| 出版日期 | 2011-10-01 |
| 卷号 | 335期号:2页码:485-498 |
| 关键词 | Pulsars: general ISM: general Radio continuum: stars |
| 英文摘要 | We report on variations in the mean position angle of the 20 millisecond pulsars being observed as part of the Parkes Pulsar Timing Array (PPTA) project. It is found that the observed variations are dominated by changes in the Faraday rotation occurring in the Earth's ionosphere. Two ionospheric models are used to correct for the ionospheric contribution and it is found that one based on the International Reference Ionosphere gave the best results. Little or no significant long-term variation in interstellar RM was found with limits typically about 0.1 rad m(-2) yr(-1) in absolute value. In a few cases, apparently significant RM variations over timescales of a few 100 days or more were seen. These are unlikely to be due to localised magnetised regions crossing the line of sight since the implied magnetic fields are too high. Most probably they are statistical fluctuations due to random spatial and temporal variations in the interstellar electron density and magnetic field along the line of sight. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | GALACTIC MAGNETIC-FIELD ; RADIO ASTRONOMICAL POLARIMETRY ; RELATIVISTIC SPIN PRECESSION ; FARADAY-ROTATION ; TIMING PACKAGE ; PSRCHIVE ; PSRFITS ; TEMPO2 ; GALAXY ; MODEL |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000294680300019 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/15955]  |
| 专题 | 紫金山天文台_毫米波和亚毫米波技术实验室 |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Australia Telescope Natl Facil, CSIRO Astron & Space Sci, Epping, NSW 1710, Australia 4.Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia 5.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 6.Max Planck Inst Radioastron, D-53121 Bonn, Germany 7.Univ Calif San Diego, La Jolla, CA 92093 USA 8.Univ Sydney, Sydney Inst Astron, Sch Phys, Sydney, NSW 2006, Australia |
| 推荐引用方式 GB/T 7714 | Yan, W. M.,Manchester, R. N.,Hobbs, G.,et al. Rotation measure variations for 20 millisecond pulsars[J]. ASTROPHYSICS AND SPACE SCIENCE,2011,335(2):485-498. |
| APA | Yan, W. M..,Manchester, R. N..,Hobbs, G..,van Straten, W..,Reynolds, J. E..,...&Yardley, D. R. B..(2011).Rotation measure variations for 20 millisecond pulsars.ASTROPHYSICS AND SPACE SCIENCE,335(2),485-498. |
| MLA | Yan, W. M.,et al."Rotation measure variations for 20 millisecond pulsars".ASTROPHYSICS AND SPACE SCIENCE 335.2(2011):485-498. |
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来源：紫金山天文台
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