A study of the long-term flux density variation of PSRs B0329+54 and B1508+55

doi:10.1051/0004-6361:20040490

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	A study of the long-term flux density variation of PSRs B0329+54 and B1508+55
	Esamdin, A1,2 ; Zhou, AZ 3; Wu, XJ1,2
	2004-10-01
Source Publication	ASTRONOMY & ASTROPHYSICS
Volume	425 Issue:3 Pages:949-954
Contribution Rank	2
Abstract	We have observed the flux densities of PSRs B0329+54 and B1508+55 for 460 days at 327 MHz using the 25 m telescope of NAOC Urumqi Observatory. The flux density time series and the corresponding structure functions are presented. Our observational results at 327 MHz and other observations at 74 MHz and 610 MHz are compared with the predictions of the refractive scintillation theory. The frequency dependence of the refractive scintillation parameters for PSR B0329+54 has been investigated. The results show that the long-term flux density modulations of PSR B0329+54 at the three frequencies are best described by a Kolmogorov spectrum for electron density inhomogeneities. For PSR B 1508+55, we suggest that the spectrum of the electron density fluctuation has a power exponent beta<4.
Keyword	Stars : Pulsars : Individual : Ism : Structure Psr b0329+54 Plasmas Psr b1508+55 Turbulence
Subtype	Article
DOI	10.1051/0004-6361:20040490
WOS Headings	Science & Technology ; Physical Sciences
Indexed By	SCI
Language	英语
WOS Keyword	REFRACTIVE INTERSTELLAR SCINTILLATION ; PULSAR SCINTILLATION ; INTENSITY VARIATIONS ; SPECTRUM ; FLUCTUATIONS ; PROPAGATION ; PLASMA
WOS Research Area	Astronomy & Astrophysics
WOS Subject	Astronomy & Astrophysics
WOS ID	WOS:000224623400018
Citation statistics	Cited Times:9[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.xao.ac.cn/handle/45760611-7/862
Collection	射电天文研究室_脉冲星研究团组科研仪器设备产出_利用南山26米射电望远镜（NSRT）观测数据的文章
Affiliation	1.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Urumqi Observ, Natl Astron Observ, Urumqi 830011, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
First Author Affilication	Xinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation GB/T 7714	Esamdin, A,Zhou, AZ,Wu, XJ. A study of the long-term flux density variation of PSRs B0329+54 and B1508+55[J]. ASTRONOMY & ASTROPHYSICS,2004,425(3):949-954.
APA	Esamdin, A,Zhou, AZ,&Wu, XJ.(2004).A study of the long-term flux density variation of PSRs B0329+54 and B1508+55.ASTRONOMY & ASTROPHYSICS,425(3),949-954.
MLA	Esamdin, A,et al."A study of the long-term flux density variation of PSRs B0329+54 and B1508+55".ASTRONOMY & ASTROPHYSICS 425.3(2004):949-954.

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