Simultaneous space and phase resolved X-ray polarimetry of the Crab Pulsar and Nebula
Creators: name: Bucciantini, Niccolò
name: Ferrazzoli, Riccardo
name: Bachetti, Matteo
name: Rankin, John
name: Di Lalla, Niccolò
name: Sgrò, Carmelo
name: Omodei, Nicola
name: Kitaguchi, Takao
name: Mizuno, Tsunefumi
name: Gunji, Shuichi
name: Watanabe, Eri
name: Baldini, Luca
name: Slane, Patrick
name: Weisskopf, Martin C.
name: Romani, Roger W.
name: Possenti, Andrea
name: Marshall, Herman L.
name: Silvestri, Stefano
name: Pacciani, Luigi
name: Negro, Michela
name: Muleri, Fabio
name: de Ona Wilhelmi, Emma Maria
name: Xie, Fei
name: Heyl, Jeremy
name: Pesce-Rollins, Melissa
name: Wong, Josephine
name: Pilia, Maura
name: Agudo, Ivan
name: Antonelli, Lucio A.
name: Baumgartner, Wayne H.
name: Bellazzini, Ronaldo
name: Bianchi, Stefano
name: Bongiorno, Stephen D.
name: Bonino, Raffaella
name: Brez, Alessandro
name: Capitanio, Fiamma
name: Castellano, Simone
name: Cavazzuti, Elisabetta
name: Ciprini, Stefano
name: Costa, Enrico
name: De Rosa, Alessandra
name: Del Monte, Ettore
name: Di Gesu, Laura
name: Di Marco, Alessandro
name: Donnarumma, Immacolata
name: Doroshenko, Victor
name: Dovčiak, Michal
name: Ehlert, Steven R.
name: Enoto, Teruaki
name: Evangelista, Yuri
name: Fabiani, Sergio
name: Garcia, Javier A.
name: Hayashida, Kiyoshi
name: Iwakiri, Wataru
name: Jorstad, Svetlana G.
name: Karas, Vladimir
name: Kolodziejczak, Jeffery J.
name: Krawczynski, Henric
name: La Monaca, Fabio
name: Latronico, Luca
name: Liodakis, Ioannis
name: Maldera, Simone
name: Manfreda, Alberto
name: Marin, Frédéric
name: Marinucci, Andrea
name: Marscher, Alan P.
name: Massaro, Francesco
name: Matt, Giorgio
name: Mitsuishi, Ikuyuki
name: Ng, C.-Y.
name: O'Dell, Stephen L.
name: Oppedisano, Chiara
name: Papitto, Alessandro
name: Pavlov, George G.
name: Peirson, Abel L.
name: Perri, Matteo
name: Petrucci, Pierre-Olivier
name: Poutanen, Juri
name: Puccetti, Simonetta
name: Ramsey, Brian D.
name: Ratheesh, Ajay
name: Soffitta, Paolo
name: Spandre, Gloria
name: Tamagawa, Toru
name: Tavecchio, Fabrizio
name: Taverna, Roberto
name: Tawara, Yuzuru
name: Tennant, Allyn F.
name: Thomas, Nicolas E.
name: Tombesi, Francesco
name: Trois, Alessio
name: Tsygankov, Sergey
name: Turolla, Roberto
name: Vink, Jacco
name: Wu, Kinwah
name: Zane, Silvia
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023

description: The Crab pulsar and its nebula are among the most studied astrophysical systems, and constitute one of the most promising environments where high energy processes and particle acceleration can be investigated. They are the only objects for which previous X-ray polarisation has been reported. We present here the first Imaging X-ray Polarimetry Explorer (IXPE) observation of the Crab pulsar and nebula. The total pulsar pulsed emission in the [2-8] keV energy range is unpolarised. Significant polarisation up to 15% is detected only in the core of the main peak. The nebula has a total space integrated polarised degree of 20% and polarisation angle of 145deg. The polarised maps show a large variation in the local polarisation, and regions with polarised degree up to 45-50%. The polarisation pattern suggests a predominantly toroidal magnetic field.