Evidence for charge exchange emission in supernova remnant N 132D from XRISM/Resolve observations
Abstract XRISM has delivered one of its first light observations on N 132D, the X-ray brightest supernova remnant in the Large Magellanic Cloud. Utilizing 193 ks of high-resolution X-ray spectroscopy data, we conduct a comprehensive search for charge exchange emission. By incorporating a charge exchange model into our spectral analysis, we observe an improvement in the fits of two weak features at 2.41 and 2.63 keV. These features, with a combined significance of 99.6%, are consistent with transitions from highly ionized silicon ions in high Rydberg states, which are unique indicators of charge exchange. Our analysis constrains the charge exchange flux to no more than 4% of the total source flux within the 1.7–3.0 keV band, and places an upper limit on the charge exchange interaction velocity at 450 km s$^{-1}$. This result supports ongoing shock–cloud interactions within N 132D and highlights the unique capabilities of XRISM to probe the complex physical processes at play.
Authors
- Ehud Behar (ORCID: https://orcid.org/0000-0001-9735-4873)
- Paul P. Plucinsky (ORCID: https://orcid.org/0000-0003-1415-5823)
- Yuken Ohshiro
- Richard Kelley (ORCID: https://orcid.org/0009-0007-2283-3336)
- Y. Terada (ORCID: https://orcid.org/0000-0002-2359-1857)
- Jacco Vink (ORCID: https://orcid.org/0000-0002-4708-4219)
- Aya Bamba (ORCID: https://orcid.org/0000-0003-0890-4920)
- Eric D. Miller (ORCID: https://orcid.org/0000-0002-3031-2326)
- Hiroyuki Uchida (ORCID: https://orcid.org/0000-0003-1518-2188)
- Hironori Matsumoto (ORCID: https://orcid.org/0000-0002-4637-7781)
- Hiroya Yamaguchi (ORCID: https://orcid.org/0000-0002-5092-6085)
- Adam Foster (ORCID: https://orcid.org/0000-0003-3462-8886)
- Hiromasa Suzuki (ORCID: https://orcid.org/0000-0002-8152-6172)
- M. Guainazzi (ORCID: https://orcid.org/0000-0002-1094-3147)
- Satoru Katsuda (ORCID: https://orcid.org/0000-0002-1104-7205)
- Randall K. Smith (ORCID: https://orcid.org/0000-0003-4284-4167)
- M. Tashiro (ORCID: https://orcid.org/0000-0002-5097-1257)
- Manan Agarwal (ORCID: https://orcid.org/0000-0001-6965-8642)
- F. S. Porter (ORCID: https://orcid.org/0000-0002-6374-1119)
- Makoto Sawada (ORCID: https://orcid.org/0000-0003-2008-6887)
- A. Decourchelle (ORCID: https://orcid.org/0000-0002-1796-758X)
- Brian J. Williams (ORCID: https://orcid.org/0000-0003-2063-381X)
- Robert Petre (ORCID: https://orcid.org/0000-0003-3850-2041)
- Caroline A. Kilbourne (ORCID: https://orcid.org/0000-0001-9464-4103)
- Yuichiro Ezoe (ORCID: https://orcid.org/0000-0002-9232-3717)
- Michael Loewenstein
- Liyi Gu (ORCID: https://orcid.org/0000-0001-9911-7038)
Institutions
- Leiden University (NL)
- Centre National de la Recherche Scientifique (FR)
- Goddard Space Flight Center (US)
- Rikkyo University (JP)
- Tokyo University of Science (JP)
- Technion – Israel Institute of Technology (IL)
- Université Paris Cité (FR)
- Kyoto University (JP)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Université Paris-Saclay (FR)
- Japan Aerospace Exploration Agency (JP)
- European Space Agency (FR)
- Astrophysique, Instrumentation et Modélisation (FR)
- Toneyama National Hospital (JP)
- Center for Astrophysics Harvard & Smithsonian (US)
- CEA Paris-Saclay (FR)
- RIKEN Advanced Science Institute (JP)
- Astrophysics Science Division (US)
- Institute of Space and Astronautical Science (JP)
- European Space Research and Technology Centre (NL)
- Space Research Organisation Netherlands (NL)
- Massachusetts Institute of Technology (US)
- University of Maryland, College Park (US)
- Tokyo Metropolitan University (JP)
- Saitama University (JP)
- The University of Tokyo (JP)
- University of Amsterdam (NL)
Publication Details
- Journal
- Publications of the Astronomical Society of Japan
- Published
- 2025-05-14
- DOI
- https://doi.org/10.1093/pasj/psaf036
- Citations
- 2
- Primary Topic
- Astrophysics and Cosmic Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 3.74
Funders
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek
- Japan Society for the Promotion of Science