Institutional Repository of Radio Astronomy Research Laboratory
| Observations of Nine Millisecond Pulsars at 8600 MHz Using the TMRT | |
Wang, Xiao-Wei1,2; Yan, Zhen1,2,3 ; Shen, Zhi-Qiang1,2,3,4; Tong, Hao5; Zhou, Xia3,6,7; Zhao, Rong-Bing1,2,3; Wu, Ya-Jun1,2,3; Huang, Zhi-Peng1,2,4; Wang, Rui1,2; Liu, Jie1
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| 2024 | |
| Source Publication | ASTROPHYSICAL JOURNAL
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| ISSN | 0004-637X |
| Volume | 961Issue:1Pages:48 |
| Contribution Rank | 6 |
| Abstract | We report detection results of nine millisecond pulsars (MSPs) at 8600 MHz using simultaneous 2250 and 8600 MHz observations conducted with the Shanghai Tian Ma Radio Telescope. Mainly benefiting from updated ephemerids with 2250 MHz observations, integrated profiles of all nine MSPs at 8600 MHz are successfully obtained by coherently adding multi-epoch (3-83 epochs) observation data spanning from 19-1210 days, which significantly increases the number of MSPs with published profiles (from 4 to 11) above 8000 MHz, as seven of our target MPSs had no related results previously. Combining our new flux density and pulse width measurements with previous low-frequency results, we study their integrated profile evolution and spectral behaviors in a wider frequency range. We find their component separations and pulse widths remain almost constant, which is consistent with previous findings. While dramatic evolution of integrated profiles exists at low frequencies, we observe a potential end of the related evolution around 5 GHz in eight MSPs. The spectra of four MSPs are found to deviate from a single power law, and we fit them with a broken power law. The change in the profile of PSR J1713+0747, which started around MJD 59320-59321, seems to be more prominent as the observation frequency increases. Compared with the effects of the interstellar medium, we prefer to explain this event as some changes in the magnetosphere. We also find its integrated profile possibly had not recovered to the pre-event state until MJD 59842-59857. |
| DOI | 10.3847/1538-4357/ad0724 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | FLUX-DENSITY MEASUREMENTS ; SINGLE-PULSE ; BACK-END ; BINARY ; EMISSION ; SPECTRA ; DISCOVERY ; PROFILES ; CENSUS ; POLARIMETRY |
| Funding Project | STCSM divided by Natural Science Foundation of Shanghai Municipalityhttps://doi.org/10.13039/100007219[2022YFA1603104] ; National Key R&D Program of China[U2031119] ; National Key R&D Program of China[12041301] ; National Natural Science Foundation of China[20ZR1467600] ; Natural Science Foundation of Shanghai |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001141968400001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | STCSM divided by Natural Science Foundation of Shanghai Municipalityhttps://doi.org/10.13039/100007219 ; National Key R&D Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shanghai |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5750 |
| Collection | 射电天文研究室_脉冲星研究团组 |
| Corresponding Author | Yan, Zhen |
| Affiliation | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron & Technol, A20 Datun Rd, Beijing 100101, Peoples R China 4.Shanghai Tech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 5.Guangzhou Univ, Sch Phys & Mat Sci, Dept Astron, Guangzhou 510006, Peoples R China 6.Chinese Acad Sci, Xinjiang Astron Observ, Xinjiang 830011, Peoples R China 7.Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Xiao-Wei,Yan, Zhen,Shen, Zhi-Qiang,et al. Observations of Nine Millisecond Pulsars at 8600 MHz Using the TMRT[J]. ASTROPHYSICAL JOURNAL,2024,961(1):48. |
| APA | Wang, Xiao-Wei.,Yan, Zhen.,Shen, Zhi-Qiang.,Tong, Hao.,Zhou, Xia.,...&Liu, Jie.(2024).Observations of Nine Millisecond Pulsars at 8600 MHz Using the TMRT.ASTROPHYSICAL JOURNAL,961(1),48. |
| MLA | Wang, Xiao-Wei,et al."Observations of Nine Millisecond Pulsars at 8600 MHz Using the TMRT".ASTROPHYSICAL JOURNAL 961.1(2024):48. |
| Files in This Item: | ||||||
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| Wang-2024-Observatio（2062KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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