NAOC Open IR
theradiationstructureofpsrb201628observedwithfast
Lu Jiguang1; Peng Bo1; Xu Renxin2; Yu Meng1; Dai Shi3; Zhu Weiwei1; Yu Yezhao1; Jiang Peng1; Yue Youling1; Wang Lin1
2019
Source Publicationsciencechinaphysicsmechanicsastronomy
ISSN1674-7348
Volume62Issue:5
AbstractWith the largest dish Five-hundred-meter Aperture Spherical radio Telescope (FAST), both the mean and single pulses of PSR B2016+28, especially including the single-pulse structure, are investigated in detail in this study. The mean pulse profiles at different frequencies can be well fitted in a conal model, and the peak separation of intensity-dependent pulse profiles increases with intensity. The integrated pulses are obviously frequency dependent (pulse width decreases by ~20% as frequency increases from 300 to 750 MHz), but the structure of single pulses changes slightly (the corresponding correlation scale decreases by only ~1%). This disparity between mean and single pulses provides independent evidence for the existence of the RS-type vacuum inner gap, indicating a strong bond between particles on the pulsar surface. Diffused drifting sub-pulses are analyzed. The results show that the modulation period along pulse series (P3) is positively correlated to the separation between two adjacent sub-pulses (P2). This correlation may hint a rough surface on the pulsar, eventually resulting in the irregular drift of sparks. All the observational results may have significant implications in the dynamics of pulsar magnetosphere and are discussed extensively in this paper.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/38378
Collection中国科学院国家天文台
Affiliation1.中国科学院国家天文台
2.北京大学
3.CSIRO Astronomy and Space Science, Australia Telescope National Facility
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Lu Jiguang,Peng Bo,Xu Renxin,et al. theradiationstructureofpsrb201628observedwithfast[J]. sciencechinaphysicsmechanicsastronomy,2019,62(5).
APA Lu Jiguang.,Peng Bo.,Xu Renxin.,Yu Meng.,Dai Shi.,...&Wang Lin.(2019).theradiationstructureofpsrb201628observedwithfast.sciencechinaphysicsmechanicsastronomy,62(5).
MLA Lu Jiguang,et al."theradiationstructureofpsrb201628observedwithfast".sciencechinaphysicsmechanicsastronomy 62.5(2019).
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