同时的空间和相位的X射线偏振岩和星云的X射线极化法

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同时的空间和相位的X射线偏振岩和星云的X射线极化法

Simultaneous space and phase resolved X-ray polarimetry of the Crab Pulsar and Nebula

论文作者

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

论文摘要

螃蟹脉冲星及其星云是研究最多的天体物理系统之一，构成了可以研究高能量过程和粒子加速的最有前途的环境之一。它们是唯一报道了先前X射线极化的对象。我们在这里提出了第一个成像X射线极化探索器（IXPE）对螃蟹脉冲星和星云的观察。 [2-8] KeV能量范围内的脉冲脉冲发射总脉冲发射是未偏振的。仅在主峰的核心中检测到高达15％的显着极化。星云的总空间综合极化度为20％，极化角度为145DEG。偏振地图在局部极化中显示出较大的变化，并且极化度高达45-50％的区域。极化模式表明主要是环形磁场。

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.

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