eprintid: 10197388 rev_number: 9 eprint_status: archive userid: 699 dir: disk0/10/19/73/88 datestamp: 2024-09-20 08:57:51 lastmod: 2024-09-20 08:57:51 status_changed: 2024-09-20 08:57:51 type: article metadata_visibility: show sword_depositor: 699 creators_name: Marshall, HL creators_name: Liodakis, I creators_name: Marscher, AP creators_name: Di Lalla, N creators_name: Jorstad, SG creators_name: Kim, DE creators_name: Middei, R creators_name: Negro, M creators_name: Omodei, N creators_name: Peirson, AL creators_name: Perri, M creators_name: Puccetti, S creators_name: Laurenti, M creators_name: Agudo, I creators_name: Bonnoli, G creators_name: Berdyugin, AV creators_name: Cavazzuti, E creators_name: Rodriguez Cavero, N creators_name: Donnarumma, I creators_name: Di Gesu, L creators_name: Jormanainen, J creators_name: Krawczynski, H creators_name: Lindfors, E creators_name: Madjeski, G creators_name: Marin, F creators_name: Massaro, F creators_name: Pacciani, L creators_name: Poutanen, J creators_name: Tavecchio, F creators_name: Kouch, PM creators_name: Aceituno, FJ creators_name: Bernardos, MI creators_name: Casanova, V creators_name: García-Comas, M creators_name: Agís-González, B creators_name: Husillos, C creators_name: Marchini, A creators_name: Sota, A creators_name: Blinov, D creators_name: Bourbah, IG creators_name: Kielhmann, S creators_name: Kontopodis, E creators_name: Mandarakas, N creators_name: Romanopoulos, S creators_name: Skalidis, R creators_name: Vervelaki, A creators_name: Borman, GA creators_name: Kopatskaya, EN creators_name: Larionova, EG creators_name: Morozova, DA creators_name: Savchenko, SS creators_name: Vasilyev, AA creators_name: Zhovtan, AV creators_name: Casadio, C creators_name: Escudero, J creators_name: Kramer, J creators_name: Myserlis, I creators_name: Trainou, E creators_name: Imazawa, R creators_name: Sasada, M creators_name: Fukazawa, Y creators_name: Kawabata, KS creators_name: Uemura, M creators_name: Mizuno, T creators_name: Nakaoka, T creators_name: Akitaya, H creators_name: Masiero, JR creators_name: Mawet, D creators_name: Panopoulou, GV creators_name: Tinyanont, S creators_name: Kagitani, M creators_name: Kravtsov, V creators_name: Sakanoi, T creators_name: Dattolo, M creators_name: Gurwell, M creators_name: Keating, G creators_name: Rao, R creators_name: Cheong, WY creators_name: Jeong, HW creators_name: Kang, S creators_name: Kim, SH creators_name: Lee, SS creators_name: Angelakis, E creators_name: Kraus, A creators_name: Hales, A creators_name: Kameno, S creators_name: Kneissl, R creators_name: Messias, H creators_name: Nagai, H creators_name: Antonelli, LA creators_name: Bachetti, M creators_name: Baldini, L creators_name: Baumgartner, WH creators_name: Bellazzini, R creators_name: Bianchi, S creators_name: Bongiorno, SD creators_name: Bonino, R creators_name: Brez, A creators_name: Bucciantini, N creators_name: Capitanio, F title: Observations of Low and Intermediate Spectral Peak Blazars with the Imaging X-Ray Polarimetry Explorer ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F63 note: Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence, https://creativecommons.org/licenses/by/4.0/. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. abstract: We present X-ray polarimetry observations from the Imaging X-ray Polarimetry Explorer (IXPE) of three low spectral peak and one intermediate spectral peak blazars, namely 3C 273, 3C 279, 3C 454.3, and S5 0716+714. For none of these objects was IXPE able to detect X-ray polarization at the 3σ level. However, we placed upper limits on the polarization degree at ∼10%-30%. The undetected polarizations favor models where the X-ray band is dominated by unpolarized photons upscattered by relativistic electrons in the jets of blazars, although hadronic models are not completely eliminated. We discuss the X-ray polarization upper limits in the context of our contemporaneous multiwavelength polarization campaigns. date: 2024-09-01 date_type: published publisher: American Astronomical Society official_url: http://dx.doi.org/10.3847/1538-4357/ad5671 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 2310716 doi: 10.3847/1538-4357/ad5671 lyricists_name: Wu, Kinwah lyricists_name: Zane, Silvia lyricists_id: KWUXX50 lyricists_id: SZANE58 actors_name: Zane, Silvia actors_id: SZANE58 actors_role: owner full_text_status: public publication: The Astrophysical Journal volume: 972 number: 1 article_number: 74 issn: 0004-637X citation: Marshall, HL; Liodakis, I; Marscher, AP; Di Lalla, N; Jorstad, SG; Kim, DE; Middei, R; ... Capitanio, F; + view all <#> Marshall, HL; Liodakis, I; Marscher, AP; Di Lalla, N; Jorstad, SG; Kim, DE; Middei, R; Negro, M; Omodei, N; Peirson, AL; Perri, M; Puccetti, S; Laurenti, M; Agudo, I; Bonnoli, G; Berdyugin, AV; Cavazzuti, E; Rodriguez Cavero, N; Donnarumma, I; Di Gesu, L; Jormanainen, J; Krawczynski, H; Lindfors, E; Madjeski, G; Marin, F; Massaro, F; Pacciani, L; Poutanen, J; Tavecchio, F; Kouch, PM; Aceituno, FJ; Bernardos, MI; Casanova, V; García-Comas, M; Agís-González, B; Husillos, C; Marchini, A; Sota, A; Blinov, D; Bourbah, IG; Kielhmann, S; Kontopodis, E; Mandarakas, N; Romanopoulos, S; Skalidis, R; Vervelaki, A; Borman, GA; Kopatskaya, EN; Larionova, EG; Morozova, DA; Savchenko, SS; Vasilyev, AA; Zhovtan, AV; Casadio, C; Escudero, J; Kramer, J; Myserlis, I; Trainou, E; Imazawa, R; Sasada, M; Fukazawa, Y; Kawabata, KS; Uemura, M; Mizuno, T; Nakaoka, T; Akitaya, H; Masiero, JR; Mawet, D; Panopoulou, GV; Tinyanont, S; Kagitani, M; Kravtsov, V; Sakanoi, T; Dattolo, M; Gurwell, M; Keating, G; Rao, R; Cheong, WY; Jeong, HW; Kang, S; Kim, SH; Lee, SS; Angelakis, E; Kraus, A; Hales, A; Kameno, S; Kneissl, R; Messias, H; Nagai, H; Antonelli, LA; Bachetti, M; Baldini, L; Baumgartner, WH; Bellazzini, R; Bianchi, S; Bongiorno, SD; Bonino, R; Brez, A; Bucciantini, N; Capitanio, F; - view fewer <#> (2024) Observations of Low and Intermediate Spectral Peak Blazars with the Imaging X-Ray Polarimetry Explorer. The Astrophysical Journal , 972 (1) , Article 74. 10.3847/1538-4357/ad5671 <https://doi.org/10.3847/1538-4357%2Fad5671>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/10197388/1/Zane_Marshall_2024_ApJ_972_74.pdf