State with the previous IXPE measurement of the source in the high soft state. We compare the polarization of the source in the steep power-law Whereas the polarization degree increases withĮnergy, the polarization angle stays constant within the accuracy of our Position angle of 21°.3 +/- 0°.9 East of North (all errors atġ confidence level). Reveal a linear polarization degree of the 2-8 keV X-rays of 6.8 +/- 0.2 % at a

Swartz, Toru Tamagawa, Fabrizio Tavecchio, Yuzuru Tawaraĭownload a PDF of the paper titled The First X-ray Polarization Observation of the Black Hole X-ray Binary 4U 1630-47 in the Steep Power Law State, by Nicole Rodriguez Cavero and 109 other authors Download PDF Abstract: The Imaging X-ray Polarimetry Explorer (IXPE) observed the black hole X-rayīinary 4U 1630-47 in the steep power law (or very high) state. Romani, Carmelo Sgrò, Patrick Slane, Gloria Spandre, Paolo Soffitta, Douglas A. Peirson, Matteo Perri, Melissa Pesce-Rollins, Maura Pilia, Andrea Possenti, Simonetta Puccetti, Brian D. O'Dell, Nicola Omodei, Chiara Oppedisano, Alessandro Papitto, George G. Marshall, Francesco Massaro, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Chi-Yung Ng, Stephen L. Kolodziejczak, Fabio La Monaca, Luca Latronico, Ioannis Liodakis, Simone Maldera, Alberto Manfreda, Frédéric Marin, Andrea Marinucci, Alan P. Jorstad, Fabian Kislat, Takao Kitaguchi, Jeffery J. García, Shuichi Gunji, Kiyoshi Hayashida, Jeremy Heyl, Wataru Iwakiri, Svetlana G. Ehlert, Teruaki Enoto, Yuri Evangelista, Sergio Fabiani, Riccardo Ferrazzoli, Javier A. Bongiorno, Raffaella Bonino, Alessandro Brez, Niccolò Bucciantini, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini, Enrico Costa, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Niccolò Di Lalla, Alessandro Di Marco, Immacolata Donnarumma, Victor Doroshenko, Steven R. Baumgartner, Ronaldo Bellazzini, Stephen D. Antonelli, Matteo Bachetti, Luca Baldini, Wayne H. Steiner, Jiri Svoboda, Fiamma Capitanio, Giorgio Matt, Michela Negro, Adam Ingram, Alexandra Veledina, Roberto Taverna, Vladimir Karas, Francesco Ursini, Jakub Podgorný, Ajay Ratheesh, Valery Suleimanov, Romana Mikušincová, Silvia Zane, Philip Kaaret, Fabio Muleri, Juri Poutanen, Christian Malacaria, Pierre-Olivier Petrucci, Ephraim Gau, Kun Hu, Sohee Chun, Iván Agudo, Lucio A. Authors: Nicole Rodriguez Cavero, Lorenzo Marra, Henric Krawczynski, Michal Dovčiak, Stefano Bianchi, James F.

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