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Title: MODELING MULTI-WAVELENGTH PULSE PROFILES OF THE MILLISECOND PULSAR PSR B1821–24

Abstract

PSR B1821–24 is a solitary millisecond pulsar that radiates multi-wavelength pulsed photons. It has complex radio, X-ray, and γ-ray pulse profiles with distinct peak phase separations that challenge the traditional caustic emission models. Using the single-pole annular gap model with a suitable magnetic inclination angle (α = 40°) and viewing angle (ζ = 75°), we managed to reproduce its pulse profiles of three wavebands. It is found that the middle radio peak originated from the core gap region at high altitudes, and the other two radio peaks originated from the annular gap region at relatively low altitudes. Two peaks of both X-ray and γ-ray wavebands basically originated from the annular gap region, while the γ-ray emission generated from the core gap region contributes somewhat to the first γ-ray peak. Precisely reproducing the multi-wavelength pulse profiles of PSR B1821–24 enables us to understand emission regions of distinct wavebands and justify pulsar emission models.

Authors:
; ; ; ; ; ; ; ; ; ; ;  [1];  [2]
  1. Qian Xuesen Laboratory of Space Technology, NO. 104, Youyi Road, Haidian District, Beijing 100094 (China)
  2. School of Physics, Peking University, Beijing 100871 (China)
Publication Date:
OSTI Identifier:
22522062
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; Journal Volume: 801; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ACCELERATION; COSMIC GAMMA SOURCES; COSMIC RADIO SOURCES; COSMIC X-RAY SOURCES; EMISSION SPECTRA; INCLINATION; PULSARS; WAVELENGTHS; X RADIATION

Citation Formats

Du, Yuanjie, Shuai, Ping, Bei, Xiaomin, Chen, Shaolong, Fu, Linzhong, Huang, Liangwei, Lin, Qingqing, Meng, Jing, Wu, Yaojun, Zhang, Hengbin, Zhang, Qian, Zhang, Xinyuan, and Qiao, Guojun, E-mail: dyj@nao.cas.cn. MODELING MULTI-WAVELENGTH PULSE PROFILES OF THE MILLISECOND PULSAR PSR B1821–24. United States: N. p., 2015. Web. doi:10.1088/0004-637X/801/2/131.
Du, Yuanjie, Shuai, Ping, Bei, Xiaomin, Chen, Shaolong, Fu, Linzhong, Huang, Liangwei, Lin, Qingqing, Meng, Jing, Wu, Yaojun, Zhang, Hengbin, Zhang, Qian, Zhang, Xinyuan, & Qiao, Guojun, E-mail: dyj@nao.cas.cn. MODELING MULTI-WAVELENGTH PULSE PROFILES OF THE MILLISECOND PULSAR PSR B1821–24. United States. doi:10.1088/0004-637X/801/2/131.
Du, Yuanjie, Shuai, Ping, Bei, Xiaomin, Chen, Shaolong, Fu, Linzhong, Huang, Liangwei, Lin, Qingqing, Meng, Jing, Wu, Yaojun, Zhang, Hengbin, Zhang, Qian, Zhang, Xinyuan, and Qiao, Guojun, E-mail: dyj@nao.cas.cn. Tue . "MODELING MULTI-WAVELENGTH PULSE PROFILES OF THE MILLISECOND PULSAR PSR B1821–24". United States. doi:10.1088/0004-637X/801/2/131.
@article{osti_22522062,
title = {MODELING MULTI-WAVELENGTH PULSE PROFILES OF THE MILLISECOND PULSAR PSR B1821–24},
author = {Du, Yuanjie and Shuai, Ping and Bei, Xiaomin and Chen, Shaolong and Fu, Linzhong and Huang, Liangwei and Lin, Qingqing and Meng, Jing and Wu, Yaojun and Zhang, Hengbin and Zhang, Qian and Zhang, Xinyuan and Qiao, Guojun, E-mail: dyj@nao.cas.cn},
abstractNote = {PSR B1821–24 is a solitary millisecond pulsar that radiates multi-wavelength pulsed photons. It has complex radio, X-ray, and γ-ray pulse profiles with distinct peak phase separations that challenge the traditional caustic emission models. Using the single-pole annular gap model with a suitable magnetic inclination angle (α = 40°) and viewing angle (ζ = 75°), we managed to reproduce its pulse profiles of three wavebands. It is found that the middle radio peak originated from the core gap region at high altitudes, and the other two radio peaks originated from the annular gap region at relatively low altitudes. Two peaks of both X-ray and γ-ray wavebands basically originated from the annular gap region, while the γ-ray emission generated from the core gap region contributes somewhat to the first γ-ray peak. Precisely reproducing the multi-wavelength pulse profiles of PSR B1821–24 enables us to understand emission regions of distinct wavebands and justify pulsar emission models.},
doi = {10.1088/0004-637X/801/2/131},
journal = {Astrophysical Journal},
number = 2,
volume = 801,
place = {United States},
year = {Tue Mar 10 00:00:00 EDT 2015},
month = {Tue Mar 10 00:00:00 EDT 2015}
}