KMS of Xinjiang Astronomical Observatory, CAS
| Modeling the Radial Distribution of Pulsars in the Galaxy | |
Xie, J. T.1,2; Wang, J. B.3 ; Wang, N.2,4,5; Manchester, R.6; Hobbs, G.6
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| 2024-03-01 | |
| Source Publication | ASTROPHYSICAL JOURNAL LETTERS
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| ISSN | 2041-8205 |
| Volume | 963Issue:2Pages:L39 |
| Contribution Rank | 2 |
| Abstract | The Parkes 20 cm multibeam pulsar surveys have discovered nearly half of the known pulsars and revealed many distant pulsars with high dispersion measures. Using a sample of 1301 pulsars from these surveys, we have explored the spatial distribution and birth rate of normal pulsars. The pulsar distances used to calculate the pulsar surface density are estimated from the YMW16 electron-density model. When estimating the impact of the Galactic background radiation on our survey, we projected pulsars in the galaxy onto the Galactic plane, assuming that the flux density distribution of pulsars is uniform in all directions, and utilized the most up-to-date background temperature map. We also used an up-to-date version of the ATNF Pulsar Catalogue to model the distribution of pulsar flux densities at 1400 MHz. We derive an improved radial distribution for the pulsar surface density projected onto the Galactic plane, which has a maximum value at similar to 4 kpc from the Galactic center. We also derive the local surface density and birth rate of pulsars, obtaining 47 +/- 5 kpc-2 and similar to 4.7 +/- 0.5 kpc-2 Myr-1, respectively. For the total number of potentially detectable pulsars in the galaxy, we obtain (1.1 +/- 0.2) x 104 and (1.1 +/- 0.2)x105 before and after applying the Tauris & Manchester beaming correction model. The radial distribution function is used to estimate the proportion of pulsars in each spiral arm and the Galactic center. |
| DOI | 10.3847/2041-8213/ad2850 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | HIGH-FREQUENCY SURVEY ; SPIRAL STRUCTURE ; GALACTIC PLANE ; DISCOVERY ; EVOLUTION ; YOUNG |
| Funding Project | Major Science and Technology Program of Xinjiang Uygur Autonomous Region[2022A03013-4] ; Zhejiang Provincial Natural Science Foundation of China[LY23A030001] ; National SKA Program of China[2020SKA0120100] ; National SKA Program of China[2022D01D85] ; National Natural Science Foundation of China[12041304] |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001180426500001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | Major Science and Technology Program of Xinjiang Uygur Autonomous Region ; Zhejiang Provincial Natural Science Foundation of China ; National SKA Program of China ; National Natural Science Foundation of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5925 |
| Collection | 中国科学院新疆天文台 |
| Corresponding Author | Wang, J. B.; Wang, N. |
| Affiliation | 1.Zhejiang Lab, Hangzhou 311121, Zhejiang, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 3.Lishui Univ, Inst Optoelect Technol, Lishui 323000, Zhejiang, Peoples R China 4.Chinese Acad Sci, Lab Radio Astron, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 5.Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China 6.Australia Telescope Natl Facil, CSIRO Space & Astron, POB76, Epping, NSW 1710, Australia |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Xie, J. T.,Wang, J. B.,Wang, N.,et al. Modeling the Radial Distribution of Pulsars in the Galaxy[J]. ASTROPHYSICAL JOURNAL LETTERS,2024,963(2):L39. |
| APA | Xie, J. T.,Wang, J. B.,Wang, N.,Manchester, R.,&Hobbs, G..(2024).Modeling the Radial Distribution of Pulsars in the Galaxy.ASTROPHYSICAL JOURNAL LETTERS,963(2),L39. |
| MLA | Xie, J. T.,et al."Modeling the Radial Distribution of Pulsars in the Galaxy".ASTROPHYSICAL JOURNAL LETTERS 963.2(2024):L39. |
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| Xie-2024-Modeling th（992KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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