Delving into the depths of NGC 3783 with XRISM

Context. Accurate X-ray spectroscopic measurements are fundamental for deriving basic physical parameters of the most abundant baryon components in the Universe. The plethora of X-ray observatories currently operational enables a panchromatic view of the high-energy emission of celestial sources. However, uncertainties in the energy-dependent calibration of the instrument transfer functions (e.g. the effective area, energy redistribution, or gain) can limit - and historically, did limit - the accuracy of X-ray spectroscopic measurements. Aims. We revised the status of the cross-calibration among the scientific payload on board four operation missions: Chandra , NuSTAR , XMM-Newton , and the recently launched XRISM. XRISM carries the micro-calorimeter Resolve, which yields the best energy resolution at energies ≥2 keV. For this purpose, we used the data from a 10-day-long observational campaign targeting the nearby active galactic nucleus NGC 3783, carried out in July 2024. Methods. We present a novel model-independent method for assessing the cross-calibration status that is based on a multi-node spline of the spectra with the highest-resolving power (XRISM/Resolve in our campaign). We also estimated the impact of the intrinsic variability of NGC 3783 on the cross-calibration status due to the different time coverages of participating observatories and performed an empirical reassessment of the Resolve throughput at low energies. Results. Based on this analysis, we derived a set of energy-dependent correction factors of the observed responses, enabling a statistically robust analysis of the whole spectral dataset. They will be employed in subsequent papers describing the astrophysical results of the campaign.

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Publication Details

Journal
Astronomy and Astrophysics
Published
2025-09-12
DOI
https://doi.org/10.1051/0004-6361/202556000
Citations
6
Primary Topic
Astrophysical Phenomena and Observations
Type
article
Field-Weighted Citation Impact
6.93

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article

Delving into the depths of NGC 3783 with XRISM

Lía Corrales, Yutaka Fujita, Chris Done, Katsuhiro Hayashi et al.
6 citations
Astronomy and Astrophysics
Astrophysical Phenomena and Observations
6.93
article

Delving into the depths of NGC 3783 with XRISM

Lía Corrales, Yutaka Fujita, Chris Done, Katsuhiro Hayashi, Aya Kubota, Kyoko Matsushita, Kouichi Hagino, M. Shidatsu, Hirokazu Odaka, M. Audard, J. S. Kaastra, Satoshi Eguchi, Scott C. Porter, Richard Kelley, Luigi Gallo, Hideki Uchiyama, Hirofumi Noda, Ayşegül Tümer, Y. Terada, María Díaz Trigo, Aya Bamba, Yoshiaki Kanemaru, Ryuichi Fujimoto, Satoshi Yamada, M. Mehdipour, T. R. Kallman, Anna Ogorzałek, A. Simionescu, S. Paltani, Edmund Hodges‐Kluck, Erin Kara, Renata Cumbee, Toshiki Sato, Hiroyuki Uchida, Hironori Matsumoto, Hiromasa Suzuki, A. E. Hornschemeier, Matilde Signorini, Takeshi Tsuru, Mai Takeo, Daiki Ishi, Edana Eckart, Adam Foster, Laura Brenneman, Masahiro Tsujimoto, Yoshitomo Maeda, Noriko Y. Yamasaki, D. McCammon, Toru Tamagawa, K. Yamaoka, Jan‐Uwe Ness, C. M. Diez, Keigo Fukumura, Michael Loewenstein, Naomi Ota, M. Guainazzi, V. Brown, Kosuke Sato, Keisuke Tamura, Takaaki Tanaka, Satoru Katsuda, Tsunefumi Mizuno, Christos Panagiotou, Robert Petre, Yoshihiro Ueda, M. Yamauchi, Ikuyuki Mitsuishi, Teruaki Enoto, Isamu Hatsukade, Hiroshi Murakami, Ken Ebisawa, Maurice A. Leutenegger, Takashi Okajima, Paul Plucinsky, D. Eckert, Maxim Markevitch, R. F. Mushotzky, Natalie Hell, Kumiko Nobukawa, Takayuki Hayashi, Makoto Sawada, Ralf Ballhausen, Mihoko Yukita, B. R. McNamara, Masayoshi Nobukawa, Misaki Mizumoto, Rozenn Boissay-Malaquin, François Mernier, Shunji Kitamoto, T. Yoneyama, Shin Watanabe, E. Costantini, H. Takahashi, Yuusuke Uchida, A. Tanimoto, Caroline A. Kilbourne, Shoji Ogawa, Keqin Zhao, Chen Li, Shogo Kobayashi, Daniel Miller, Jonathan Williams, Nagomi Uchida, Yohko Tsuboi, Shinya Yamada, Ehud Behar, Tessei Yoshida, M. Miller, Katja Pottschmidt, Manabu Ishida, Kumi Ishikawa, Hiromi Seta, Koji Mori, Randall W. Smith, Hiroshi Nakajima, H. Tsunemi, Hisamitsu Awaki, Hiroya Yamaguchi, Jacco Vink, Yuichi Terashima, Akihiro Furuzawa, Yuichiro Ezoe, Shiníchiro Uno, Liyi Gu, Yuto Ichinohe, Koji Mukai, Yoshitaka Ishisaki, Yasushi Fukazawa, Kenji Hamaguchi, Takayoshi Kohmura, Kazuhiro Nakazawa, Andrew Szymkowiak, Tadayasu Dotani, Kotaro Fukushima, Makoto Tashiro, Shigeo Yamauchi, Tahir Yaqoob, Adriana Garcia
article en
6 citations

Abstract

Context. Accurate X-ray spectroscopic measurements are fundamental for deriving basic physical parameters of the most abundant baryon components in the Universe. The plethora of X-ray observatories currently operational enables a panchromatic view of the high-energy emission of celestial sources. However, uncertainties in the energy-dependent calibration of the instrument transfer functions (e.g. the effective area, energy redistribution, or gain) can limit - and historically, did limit - the accuracy of X-ray spectroscopic measurements. Aims. We revised the status of the cross-calibration among the scientific payload on board four operation missions: Chandra , NuSTAR , XMM-Newton , and the recently launched XRISM. XRISM carries the micro-calorimeter Resolve, which yields the best energy resolution at energies ≥2 keV. For this purpose, we used the data from a 10-day-long observational campaign targeting the nearby active galactic nucleus NGC 3783, carried out in July 2024. Methods. We present a novel model-independent method for assessing the cross-calibration status that is based on a multi-node spline of the spectra with the highest-resolving power (XRISM/Resolve in our campaign). We also estimated the impact of the intrinsic variability of NGC 3783 on the cross-calibration status due to the different time coverages of participating observatories and performed an empirical reassessment of the Resolve throughput at low energies. Results. Based on this analysis, we derived a set of energy-dependent correction factors of the observed responses, enabling a statistically robust analysis of the whole spectral dataset. They will be employed in subsequent papers describing the astrophysical results of the campaign.

Astronomy and AstrophysicsVol. 702
Kagoshima University (JP), Hiroshima University (JP), University of Geneva (CH), University of Miyazaki (JP), James Madison University (US), Kumamoto Gakuen University (JP), Leiden University (NL), California Institute of Technology (US), Nihon Fukushi University (JP), Lawrence Livermore National Laboratory (US), Space Telescope Science Institute (US), Shizuoka University (JP), Goddard Space Flight Center (US), Rikkyo University (JP), University of Wisconsin–Madison (US), Johns Hopkins University (US), Fujita Health University (JP), Nara University of Education (JP), University of Waterloo (CA), Konan University (JP), Tokyo University of Science (JP), Meiji University (JP), Kyoto Sangyo University (JP), Shibaura Institute of Technology (JP), Technion – Israel Institute of Technology (IL), Durham University (GB), Tohoku University (JP), Kanto Gakuin University (JP), Kyoto University (JP), University of Michigan (US), University of Teacher Education Fukuoka (JP), Japan Aerospace Exploration Agency (JP), Tohoku Gakuin University (JP), Yale University (US), University of Chicago (US), European Space Astronomy Centre (ES), Kavli Institute for Particle Astrophysics and Cosmology (US), RIKEN (JP), Osaka Health Science University (JP), Université Bourgogne Franche-Comté (FR), Center for Astrophysics Harvard & Smithsonian (US), Institute of Space and Astronautical Science (JP), RIKEN Nishina Center (JP), Ehime University (JP), Leiden Observatory, European Space Research and Technology Centre (NL), Space Research Organisation Netherlands (NL), Nagoya University (JP), Massachusetts Institute of Technology (US), Saint Mary's University (CA), University of Maryland, College Park (US), Tokyo Metropolitan University (JP), Saitama University (JP), The University of Tokyo (JP), University of Maryland, Baltimore County (US), University of Amsterdam (NL), Kindai University (JP), Chuo University (JP), The University of Osaka (JP), Nara Women's University (JP)
National Science Foundation, U.S. Department of Energy, National Aeronautics and Space Administration, Alfred P. Sloan Foundation, Kagoshima University, Space Telescope Science Institute, Nederlandse Organisatie voor Wetenschappelijk Onderzoek, Nuclear Safety and Security Commission, Rikkyo University, Goddard Space Flight Center, Canadian Space Agency, Science and Technology Facilities Council, Japan Society for the Promotion of Science, RIKEN, Lawrence Livermore National Laboratory
Openalex Percentile: Top 3%
Astrophysical Phenomena and Observations
6.93
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