Pulsar winds interacting with sources of external pressure are well-established as efficient and prolific TeV accelerators in our Galaxy. Yet, enabled by observations from Fermi-LAT, a growing class of non-accreting pulsars in binaries has emerged and these are likely to become apparent as TeV emitters in the CTA era. This class consists of the black widows and redbacks, binaries in which a millisecond pulsar interacts with its low-mass companion. In such systems, an intrabinary shock can form as a site of particle acceleration and associated nonthermal emission. We motivate why these sources are particularly interesting for understanding pulsar winds. We also describe our new multizone code which models the X-ray and gamma-ray synchrotron and inverse Compton spectral components for select spider binaries, including diffusion, convection, and radiative energy losses in an axially symmetric, steady-state approach. This new multizone code simultaneously yields energy-dependent light curves and orbital-phase-resolved spectra. It also better constrains the multiplicity of electron/positron pairs that have been accelerated up to TeV energies and are necessary to power orbitally-modulated synchrotron emission components between the X-rays and MeV/GeV bands potentially observed in some systems. This affords a more robust prediction of the expected high-energy and VHE gamma-ray flux. Nearby MSPs with hot or flaring companions may be promising targets for CTA, and it is possible that spider binaries could contribute to the observed AMS-02 energetic positron excess.
Search for TeV emission from spider millisecond pulsars with HAWC
Instituto de Física, Universidad Nacional Autónoma de México(墨西哥国立自治大学物理研究所);Instituto de Astronomía, Universidad Nacional Autónoma de México(墨西哥国立自治大学天文学研究所);Universidad de Costa Rica(哥斯达黎加大学);Universidad Michoacana de San Nicolás de Hidalgo(米却肯圣尼古拉斯德伊达尔戈大学);Temple University(天普大学);Department of Physics and Astronomy, Michigan State University(密歇根州立大学物理与天文系);Laboratoire d’Annecy-le-Vieux de Physique Théorique (LAPTh), CNRS, USMB(法国国家科学研究中心/萨瓦大学安纳西勒沃旧理论物理实验室);Università degli Studi di Torino(都灵大学);Instituto Nacional de Astrofísica, Óptica y Electrónica(墨西哥国家天体物理学、光学和电子研究所);Institute of Nuclear Physics Polish Academy of Sciences(波兰科学院核物理研究所)
A Chandra X-ray study of millisecond pulsars in the globular cluster Omega Centauri: a correlation between spider pulsar companion mass and X-ray luminosity
COBIPLANE: A Systematic Search for Compact Binary Millisecond Pulsars at Low Galactic Latitudes
Norwegian University of Science and Technology(挪威科技大学);Universitat Politècnica de Catalunya(加泰罗尼亚理工大学);Centro de Astrobiología, CSIC-INTA(西班牙国家航空航天技术研究所/西班牙国家研究委员会天体生物学中心)
Searching for optical pulsations from spider millisecond pulsars with the fast photometer SiFAP2
INAF Osservatorio Astronomico di Roma(意大利国家天体物理研究所罗马天文台);Dipartimento di Fisica, Sapienza Università di Roma(罗马智慧大学物理系);Institute of Space Sciences (ICE, CSIC)(空间科学研究所(西班牙高等科学研究理事会));Institut d’Estudis Espacials de Catalunya (IEEC)(加泰罗尼亚太空研究学院);INAF - Osservatorio Astronomico di Brera(意大利国家天体物理研究所布雷拉天文台);ASI - Agenzia Spaziale Italiana(意大利航天局);Department of Physics, Norwegian University of Science and Technology(挪威科技大学物理系)
On the Expected Orbitally-modulated TeV Signatures of Spider Binaries: The Effect of Intrabinary Shock Geometry
Centre for Space Research, North-West University(西北大学空间研究中心);Department of Astronomy, University of Maryland(马里兰大学天文学系);Astrophysics Science Division, NASA Goddard Space Flight Center(NASA戈达德太空飞行中心天体物理学科学部);Center for Research and Exploration in Space Science and Technology, NASA/GSFC(NASA/GSFC空间科学与技术研究探索中心)
Gamma-ray Orbital Modulation in Spider Pulsars: Three Discoveries and a Universal Modulated Fraction
Norwegian University of Science and Technology(挪威科技大学);Universitat Politècnica de Catalunya(加泰罗尼亚理工大学);Shanghai Jiao Tong University(上海交通大学);INAF Osservatorio Astrofisico di Arcetri(意大利国家天体物理研究所阿切尔蒂天文台)
The GMRT High-Resolution Southern Sky Survey for pulsars and transients -- VII: Timing of Spider MSP J1242-4712, A Bridge Between Redback and Black Widow Pulsars
Testing Magnetic Field Configurations in Spider Pulsar PSR J1723-2837 with IXPE
Louisiana State University(路易斯安那州立大学);NASA Goddard Space Flight Center(美国宇航局戈达德太空飞行中心);Stanford University(斯坦福大学);Columbia University(哥伦比亚大学);University of Maryland, College Park(马里兰大学帕克分校);Center for Research and Exploration in Space Science and Technology, NASA/GSFC(NASA/戈达德太空飞行中心空间科学与技术研究探索中心);University of Maryland, Baltimore County(马里兰大学巴尔的摩县分校)
The GMRT High-Resolution Southern Sky Survey for pulsars and transients -- VIII: Orbital Variability and the Evolution of a 1-Day He-WD Millisecond Pulsar J2101-4802
National Centre For Radio Astrophysics, Tata Institute of Fundamental Research(塔塔基础研究所射电天体物理国家中心);Center for Gravitation, Cosmology, and Astrophysics, Department of Physics, University of Wisconsin-Milwaukee(威斯康星大学密尔沃基分校物理系引力、宇宙学与天体物理中心);Laboratoire d’Astrophysique de Bordeaux, Université de Bordeaux, CNRS(波尔多大学CNRS波尔多天体物理实验室);Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester(曼彻斯特大学物理与天文学院乔德雷尔银行天体物理中心)
Discovery of the redback millisecond pulsar PSR J1728-4608 with ASKAP
International Centre for Radio Astronomy Research, Curtin University(国际无线电天文学研究中心,科廷大学);Centre for Astrophysics and Supercomputing, Swinburne University of Technology(天体物理与超级计算中心,斯威本科技大学);State Key Laboratory of Radio Astronomy and Technology, National Astronomical Observatories, Chinese Academy of Sciences(射电天文与技术国家重点实验室,中国科学院国家天文台);Department of Physics and Astronomy, University of North Carolina at Chapel Hill(物理与天文学系,北卡罗来纳大学教堂山分校);Department of Physics, University of Wisconsin-Milwaukee(物理系,威斯康星大学密尔沃基分校);Sydney Institute for Astronomy, School of Physics, The University of Sydney(悉尼天文研究所,物理学院,悉尼大学);National Centre for Radio Astrophysics, Tata Institute of Fundamental Research(国家射电天体物理中心,塔塔基础研究院)
IQUEYE at Gemini South: instrument, science commission, and first results
Universidad de Chile(智利大学);University of Padova(帕多瓦大学);INAF - Osservatorio Astronomico di Padova(意大利国家天体物理研究所帕多瓦天文台);CONICET-UNC(阿根廷国家科学研究委员会科尔多瓦国立大学);University of Toronto(多伦多大学);McGill University(麦吉尔大学)