The Polarized Cosmic Hand: IXPE Observations of PSR B1509-58/MSH 15-52
Romani Roger W.; Wong Josephine; Di Lalla Niccolo; Omodei Nicola; Xie Fei; Ng C. -Y.; Ferrazzoli Riccardo; Di Marco Alessandro; Bucciantini Niccolo; Pilia Maura; Slane Patrick; Weisskopf Martin C.; Johnston Simon; Burgay Marta; Wei Deng; Yang Yi-Jung; Zhang Shumeng; Antonelli Lucio A.; Bachetti Matteo; Baldini Luca; Baumgartner Wayne H.; Bellazzini Ronaldo; Bianchi Stefano; Bongiorno Stephen D.; Bonino Raffaella; Brez Alessandro; Capitanio Fiamma; Castellano Simone; Cavazzuti Elisabetta; Chen Chien-Ting; Cibrario Nicolo; Ciprini Stefano; Costa Enrico; De Rosa Alessandra; Del Monte Ettore; Di Gesu Laura; Donnarumma Immacolata; Doroshenko Victor; Dovciak Michal; Ehlert Steven R.; Enoto Teruaki; Evangelista Yuri; Fabiani Sergio; Garcia Javier A.; Gunji Shuichi; Hayashida Kiyoshi; Heyl Jeremy; Iwakiri Wataru; Liodakis Ioannis; Kaaret Philip; Karas Vladimir; Kim Dawoon E.; Kitaguchi Takao; Kolodziejczak Jeffery J.; Krawczynski Henric; La Monaca Fabio; Latronico Luca; Madejski Grzegorz; Maldera Simone; Manfreda Alberto; Marin Frederic; Marinucci Andrea; Marscher Alan P.; Marshall Herman L.; Massaro Francesco; Matt Giorgio; Middei Riccardo; Mitsuishi Ikuyuki; Mizuno Tsunefumi; Muleri Fabio; Negro Michela; O'Dell Stephen L.; Oppedisano Chiara; Pacciani Luigi; Papitto Alessandro; Pavlov George G.; Perri Matteo; Pesce-Rollins Melissa; Petrucci Pierre-Olivier; Possenti Andrea; Poutanen Juri; Puccetti Simonetta; Ramsey Brian D.; Rankin John; Ratheesh Ajay; Roberts Oliver J.; Sgro Carmelo; Soffitta Paolo; Spandre Gloria; Swartz Douglas A.; Tamagawa Toru; Tavecchio Fabrizio; Taverna Roberto; Tawara Yuzuru; Tennant Allyn F.; Thomas Nicholas E.; Tombesi Francesco; Trois Alessio; Tsygankov Sergey; Turolla Roberto; Vink Jacco; Wu Kinwah; Zane Silvia
https://urn.fi/URN:NBN:fi-fe2025082784844
Tiivistelmä
We describe IXPE polarization observations of the pulsar wind nebula (PWN) MSH 15−52, the "Cosmic Hand." We find X-ray polarization across the PWN, with B-field vectors generally aligned with filamentary X-ray structures. High-significance polarization is seen in arcs surrounding the pulsar and toward the end of the "jet," with polarization degree PD > 70%, thus approaching the maximum allowed synchrotron value. In contrast, the base of the jet has lower polarization, indicating a complex magnetic field at significant angle to the jet axis. We also detect significant polarization from PSR B1509−58 itself. Although only the central pulse phase bin of the pulse has high individual significance, flanking bins provide lower-significance detections and, in conjunction with the X-ray image and radio polarization, can be used to constrain rotating vector model solutions for the pulsar geometry.
Kokoelmat
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