We consider the electrodynamics of in-spiraling binary pulsars, showing that there are two distinct ways in which they may emit radiation. On the one hand, even if the pulsars do not rotate, we show that in vacuo orbital rotation generates magnetic quadrupole emission, which, in the late stages of the binary evolution becomes nearly as effective as magnetic dipole emission by a millisecond pulsar. On the other hand, we show that interactions of the two magnetic fields generate powerful induction electric fields, which cannot be screened by a suitable distribution of charges and currents like they are in isolated pulsars. We compute approximate electromotive forces for this case.
Pulsar electrodynamics inferred from frequency-dependent circular polarization diversity
Peking University（北京大学）；National Astronomical Observatories, Chinese Academy of Sciences（中国科学院国家天文台）；Max-Planck-Institut für Radioastronomie（马克斯·普朗克射电天文研究所）；University of Chinese Academy of Sciences（中国科学院大学）
Global current circuit structure in a resistive pulsar magnetosphere model
脉冲星的磁层有很强的磁场和大量的等离子体。这些磁层的结构进行了研究，使用无力电动力学。为了理解脉冲星的磁层，讨论必须包括其外部区域。然而，无力电动力学是有限的，因为它不处理耗散。因此，需要一个电阻性脉冲星磁场模型。为了打破理想的磁流体动力学（MHD）条件$E \cdot B = 0$，使用欧姆定律。在这项工作中，我引入电阻率依赖于距离恒星，并获得一个自洽的稳态时间积分。磁层中形成极向电流回路，同时环向磁场区域扩展到光柱之外，出现坡印廷通量辐射。高电阻率导致大的空间尺度的极向电流电路和磁层辐射的坡印亭通量大于线性增加以外的轻圆柱半径。所形成的极向电流回路具有宽度，该宽度随着电导率而增长。这一结果有助于建立一个更具体的耗散脉冲星磁层模型。
Axion Hair and Pulsar Electrodynamics: modelling, discharge dynamics, and particle-in-cell simulations
Rudolf Peierls Centre for Theoretical Physics, University of Oxford（牛津大学鲁道夫·派尔斯理论物理中心）；Deutsches Elektronen-Synchrotron DESY（德国电子同步加速器中心）；II. Institute of Theoretical Physics, Universität Hamburg（汉堡大学第二理论物理研究所）；Department of Theoretical Physics, CERN（欧洲核子研究中心理论物理部）；Dipartimento di Fisica, “Sapienza” Università di Roma & Sezione INFN Roma1（罗马第一大学物理系及INFN罗马一分部）；Weizmann Institute of Science（魏茨曼科学研究所）；Institut de Física d’Altes Energies (IFAE) and Barcelona Institute of Science and Technology (BIST)（高等能源物理研究所及巴塞罗那科学与技术研究院）；Institute for Advanced Study, Princeton（普林斯顿高等研究院）；University of Maryland（马里兰大学）；Johns Hopkins University（约翰斯·霍普金斯大学）
The Dispersion Relation of Massive Photons in Plasma: A Comment on "Bounding the Photon Mass with Ultrawide Bandwidth Pulsar Timing Data and Dedispersed Pulses of Fast Radio Bursts"
