The Astrophysical Journal (Jan 2024)
Follow-up Timing of 12 Pulsars Discovered in Commensal Radio Astronomy FAST Survey
- D. Zhao,
- J. P. Yuan,
- N. Wang,
- D. Li,
- P. Wang,
- M. Y. Xue,
- W. W. Zhu,
- C. C. Miao,
- W. M. Yan,
- J. B. Wang,
- J. M. Yao,
- Q. D. Wu,
- S. Q. Wang,
- S. N. Sun,
- F. F. Kou,
- Y. T. Chen,
- S. J. Dang,
- Y. Feng,
- Z. J. Liu,
- X. L. Miao,
- L. Q. Meng,
- M. Yuan,
- C. H. Niu,
- J. R. Niu,
- L. Qian,
- S. Wang,
- X. Y. Xie,
- Y. F. Xiao,
- Y. L. Yue,
- S. P. You,
- X. H. Yu,
- R. S. Zhao,
- R. Yuen,
- X. Zhou,
- L. Zhang,
- M. Xie,
- Y. X. Li,
- Y. B. Wang,
- Z. K. Luo,
- Z. Y. Gan,
- Z. Y. Sun,
- M. M. Chi,
- C. J. Wang
Affiliations
- D. Zhao
- ORCiD
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 150 Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China ; [email protected], [email protected], [email protected]; Key Laboratory of Radio Astronomy and Technology ( Chinese Academy of Sciences) , A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People's Republic of China; School of Physical Science and Technology, Xinjiang University, Urumqi, Xinjiang 830046, People's Republic of China
- J. P. Yuan
- ORCiD
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 150 Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China ; [email protected], [email protected], [email protected]; Key Laboratory of Radio Astronomy and Technology ( Chinese Academy of Sciences) , A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People's Republic of China
- N. Wang
- ORCiD
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 150 Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China ; [email protected], [email protected], [email protected]; Key Laboratory of Radio Astronomy and Technology ( Chinese Academy of Sciences) , A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People's Republic of China
- D. Li
- ORCiD
- Department of Astronomy, Tsinghua University, Beijing 100084 , People's Republic of China; National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China; Zhejiang Lab , Hangzhou, Zhejiang 311121, People’s Republic of China
- P. Wang
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China; Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University , Beijing 102206, People's Republic of China
- M. Y. Xue
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China
- W. W. Zhu
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China; Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University , Beijing 102206, People's Republic of China
- C. C. Miao
- ORCiD
- Zhejiang Lab , Hangzhou, Zhejiang 311121, People’s Republic of China
- W. M. Yan
- ORCiD
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 150 Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China ; [email protected], [email protected], [email protected]; Key Laboratory of Radio Astronomy and Technology ( Chinese Academy of Sciences) , A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People's Republic of China
- J. B. Wang
- ORCiD
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 150 Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China ; [email protected], [email protected], [email protected]; Key Laboratory of Radio Astronomy and Technology ( Chinese Academy of Sciences) , A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China; Institute of Optoelectronic Technology, Lishui University , Lishui 323000, People's Republic of China
- J. M. Yao
- ORCiD
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 150 Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China ; [email protected], [email protected], [email protected]; Key Laboratory of Radio Astronomy and Technology ( Chinese Academy of Sciences) , A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People's Republic of China
- Q. D. Wu
- ORCiD
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 150 Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China ; [email protected], [email protected], [email protected]; Key Laboratory of Radio Astronomy and Technology ( Chinese Academy of Sciences) , A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People's Republic of China
- S. Q. Wang
- ORCiD
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 150 Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China ; [email protected], [email protected], [email protected]; Key Laboratory of Radio Astronomy and Technology ( Chinese Academy of Sciences) , A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People's Republic of China
- S. N. Sun
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 150 Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China ; [email protected], [email protected], [email protected]; Key Laboratory of Radio Astronomy and Technology ( Chinese Academy of Sciences) , A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People's Republic of China
- F. F. Kou
- ORCiD
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 150 Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China ; [email protected], [email protected], [email protected]; Key Laboratory of Radio Astronomy and Technology ( Chinese Academy of Sciences) , A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People's Republic of China
- Y. T. Chen
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China; University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
- S. J. Dang
- ORCiD
- Guizhou Normal University , Guiyang 550001, People's Republic of China
- Y. Feng
- ORCiD
- Zhejiang Lab , Hangzhou, Zhejiang 311121, People’s Republic of China
- Z. J. Liu
- Guizhou Normal University , Guiyang 550001, People's Republic of China
- X. L. Miao
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China
- L. Q. Meng
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China
- M. Yuan
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China
- C. H. Niu
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China; Institute of Astrophysics, Central China Normal University , Wuhan 430079, People's Republic of China
- J. R. Niu
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China
- L. Qian
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China
- S. Wang
- ORCiD
- School of Computer Science, Fudan University, Shanghai 200438, People's Republic of China
- X. Y. Xie
- Guizhou Normal University , Guiyang 550001, People's Republic of China
- Y. F. Xiao
- GuiZhou University , Guizhou 550025, People's Republic of China
- Y. L. Yue
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China
- S. P. You
- Guizhou Normal University , Guiyang 550001, People's Republic of China
- X. H. Yu
- Guizhou Normal University , Guiyang 550001, People's Republic of China
- R. S. Zhao
- ORCiD
- Guizhou Normal University , Guiyang 550001, People's Republic of China
- R. Yuen
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 150 Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China ; [email protected], [email protected], [email protected]; Key Laboratory of Radio Astronomy and Technology ( Chinese Academy of Sciences) , A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People's Republic of China
- X. Zhou
- ORCiD
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences , 150 Science 1-Street, Urumqi, Xinjiang 830011, People's Republic of China ; [email protected], [email protected], [email protected]; Key Laboratory of Radio Astronomy and Technology ( Chinese Academy of Sciences) , A20 Datun Road, Chaoyang District, Beijing, 100101, People's Republic of China; Xinjiang Key Laboratory of Radio Astrophysics , 150 Science1-Street, Urumqi, Xinjiang 830011, People's Republic of China
- L. Zhang
- ORCiD
- National Astronomical Observatories, Chinese Academy of Sciences , A20 Datun Road, Chaoyang District, Beijing 100101, People's Republic of China
- M. Xie
- School of Computer Science, Fudan University, Shanghai 200438, People's Republic of China
- Y. X. Li
- Tencent Youtu Lab , Shanghai 201103, People's Republic of China
- Y. B. Wang
- Tencent Youtu Lab , Shanghai 201103, People's Republic of China
- Z. K. Luo
- Tencent Youtu Lab , Shanghai 201103, People's Republic of China
- Z. Y. Gan
- ORCiD
- Tencent Youtu Lab , Shanghai 201103, People's Republic of China
- Z. Y. Sun
- Tencent Youtu Lab , Shanghai 201103, People's Republic of China
- M. M. Chi
- Tencent Youtu Lab , Shanghai 201103, People's Republic of China
- C. J. Wang
- ORCiD
- Tencent Youtu Lab , Shanghai 201103, People's Republic of China
- DOI
- https://doi.org/10.3847/1538-4357/ad79f4
- Journal volume & issue
-
Vol. 975,
no. 1
p. 88
Abstract
We present phase-connected timing ephemerides, polarization pulse profiles, and Faraday rotation measurements of 12 pulsars discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in the Commensal Radio Astronomy FAST Survey. The observational data for each pulsar span at least 1 yr. Among them, PSR J1840+2843 shows subpulse drifting, and five pulsars are detected to exhibit pulse nulling phenomena. PSR J0640−0139 and PSR J2031−1254 are isolated millisecond pulsars (MSPs) with stable spin-down rates ( $\dot{P}$ ) of 4.8981(6) × 10 ^−20 s s ^−1 and 6.01(2) × 10 ^−21 s s ^−1 , respectively. Additionally, one pulsar (PSR J1602−0611) is in a neutron star−white dwarf (WD) binary system with an 18.23-day orbit and a companion of ≤0.65 M _⊙ . PSR J1602−0611 has a spin period, companion mass, and orbital eccentricity that are consistent with the theoretical expectations for MSP−helium WD (He WD) systems. Therefore, we believe that it might be an MSP−He WD binary system. The locations of PSR J1751−0542 and PSR J1840+2843 on the $P-\dot{P}$ diagram are beyond the traditional death line. This indicates that FAST has discovered some low- $\dot{E}$ pulsars, contributing new samples for testing pulsar radiation theories. We estimated the distances of these 12 pulsars based on NE2001 and YMW16 electron density models, and our work enhances the data set for investigating the electron density model of the Galaxy.
Keywords