The Chinese pulsar timing array data release I. Polarimetry for 56 millisecond pulsars
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866910914890956800 |
|---|---|
| author | Xu, Jiangwei Jiang, Jinchen Xu, Heng Wang, Bojun Xue, Zihan Chen, Siyuan Guo, Yanjun Caballero, R. Nicolas Lee, Kejia Yuan, Jianping Xu, Yonghua Wang, Jingbo Hao, Longfei Li, Zhixuan Huang, Yuxiang Xu, Zezhong Luo, Jintao Han, Jinlin Jiang, Peng Shen, Zhiqiang Wang, Min Wang, Na Xu, Renxin Wu, Xiangping Qian, Lei Yue, Youling Guan, Xin Huang, Menglin Sun, Chun Zhu, Yan |
| author_facet | Xu, Jiangwei Jiang, Jinchen Xu, Heng Wang, Bojun Xue, Zihan Chen, Siyuan Guo, Yanjun Caballero, R. Nicolas Lee, Kejia Yuan, Jianping Xu, Yonghua Wang, Jingbo Hao, Longfei Li, Zhixuan Huang, Yuxiang Xu, Zezhong Luo, Jintao Han, Jinlin Jiang, Peng Shen, Zhiqiang Wang, Min Wang, Na Xu, Renxin Wu, Xiangping Qian, Lei Yue, Youling Guan, Xin Huang, Menglin Sun, Chun Zhu, Yan |
| contents | We present polarization pulse profiles for 56 millisecond pulsars (MSPs) monitored by the Chinese Pulsar Timing Array (CPTA) collaboration using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The observations centered at 1.25 GHz with a raw bandwidth of 500 MHz. Due to the high sensitivity ($\sim$16 K/Jy) of the FAST telescope and our long integration time, the high signal-to-noise ratio polarization profiles show features hardly detected before. Among 56 pulsars, the polarization profiles of PSRs J0406$+$3039, J1327$+$3423, and J2022$+$2534 were not previously reported. 80\% of MSPs in the sample show weak components below 3\% of peak flux, 25\% of pulsars show interpulse-like structures, and most pulsars show linear polarization position angle jumps. Six pulsars seem to be emitting for full rotation phase, with another thirteen pulsars being good candidates for such a 360$^\circ$ radiator. We find that the distribution of the polarization percentage in our sample is compatible with the normal pulsar distribution. Our detailed evaluation of the MSP polarization properties suggests that the wave propagation effects in the pulsar magnetosphere are important in shaping the MSP polarization pulse profiles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_20820 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The Chinese pulsar timing array data release I. Polarimetry for 56 millisecond pulsars Xu, Jiangwei Jiang, Jinchen Xu, Heng Wang, Bojun Xue, Zihan Chen, Siyuan Guo, Yanjun Caballero, R. Nicolas Lee, Kejia Yuan, Jianping Xu, Yonghua Wang, Jingbo Hao, Longfei Li, Zhixuan Huang, Yuxiang Xu, Zezhong Luo, Jintao Han, Jinlin Jiang, Peng Shen, Zhiqiang Wang, Min Wang, Na Xu, Renxin Wu, Xiangping Qian, Lei Yue, Youling Guan, Xin Huang, Menglin Sun, Chun Zhu, Yan High Energy Astrophysical Phenomena We present polarization pulse profiles for 56 millisecond pulsars (MSPs) monitored by the Chinese Pulsar Timing Array (CPTA) collaboration using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). The observations centered at 1.25 GHz with a raw bandwidth of 500 MHz. Due to the high sensitivity ($\sim$16 K/Jy) of the FAST telescope and our long integration time, the high signal-to-noise ratio polarization profiles show features hardly detected before. Among 56 pulsars, the polarization profiles of PSRs J0406$+$3039, J1327$+$3423, and J2022$+$2534 were not previously reported. 80\% of MSPs in the sample show weak components below 3\% of peak flux, 25\% of pulsars show interpulse-like structures, and most pulsars show linear polarization position angle jumps. Six pulsars seem to be emitting for full rotation phase, with another thirteen pulsars being good candidates for such a 360$^\circ$ radiator. We find that the distribution of the polarization percentage in our sample is compatible with the normal pulsar distribution. Our detailed evaluation of the MSP polarization properties suggests that the wave propagation effects in the pulsar magnetosphere are important in shaping the MSP polarization pulse profiles. |
| title | The Chinese pulsar timing array data release I. Polarimetry for 56 millisecond pulsars |
| topic | High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2502.20820 |