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中国科学:物理学 力学 天文学（英文版）
中国科学:物理学 力学 天文学（英文版）

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中国科学:物理学 力学 天文学（英文版）/Journal Science China(Physics, Mechanics&Astronomy)CSCDCSTPCDEISCI
查看更多>>《中国科学》是中国科学院主办、中国科学杂志社出版的自然科学专业性学术刊物。《中国科学》任务是反映中国自然科学各学科中的最新科研成果，以促进国内外的学术交流。《中国科学》以论文形式报道中国基础研究和应用研究方面具有创造性的、高水平的和有重要意义的科研成果。在国际学术界，《中国科学》作为代表中国最高水平的学术刊物也受到高度重视。国际上最具有权威的检索刊物SCI，多年来一直收录《中国科学》的论文。1999年《中国科学》夺得国家期刊奖的第一名。
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    Investigating the neutron star physics through observations of several young pulsars in the dipole-field re-emergence scenario

    Yu-Long YanQuan ChengXiao-Ping Zheng
    197-208页
    查看更多>>摘要：The observed timing data,magnetic tilt anglex,and age of young pulsars could be used to probe some important issues about neutron star(NS)physics,e.g.,the NS internal magnetic field configuration,and the number of precession cycles ξ.Both quan-tities are critical in studying the continuous gravitational wave emission from pulsars,and the latter generally characterizes the mutual interactions between superfluid neutrons and other particles in the NS interior.The timing behavior of pulsars can be influenced by the dipole field evolution,which instead of decaying,may increase with time.An increase in the dipole field may result from the re-emergence of the initial dipole field Bd.i that was buried into the NS interior shortly after the birth of the NS.In this work,the field re-emergence scenario ξ and the internal field configuration of several young pulsars,as well as their Bd,i are investigated by assuming typical accreted masses ΔM.Moreover,since the Crab pulsar has an exactly known age and its tilt angle change rate can be inferred from observations,we can set stringent constraints on itsξ,Bd.i,and ΔM.Although for other young pulsars without exactly known ages and tilt angle change rates,these quantities cannot be accurately determined,we find that their f are generally within～104-106,and some of them probably have magnetar-strength Bd.i.Our work could be important for investigating the transient emissions associated with NSs,the origin of strong magnetic fields of NSs,pulsar population,continuous gravitational wave emission from pulsars,and accretion under extreme conditions in principle.
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    Observational evidence for the AGN wind as a regulator of galaxy evolution

    Feng Yuan
    209页
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    Final vitrification of monatomic metals

    Maozhi Li
    210-212页
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