Emission lines due to ionizing radiation from a compact object in the remnant of Supernova 1987A

• 成果类型: Article
• 署名作者: Fransson, C.; Barlow, M. J.; Kavanagh, P. J.; Larsson, J.; Jones, O. C.; Sargent, B.; Meixner, M.; Bouchet, P.; Temim, T.; Wright, G. S.; Blommaert, J. A. D. L.; Habel, N.; Hirschauer, A. S.; Hjorth, J.; Lenkic, L.; Tikkanen, T.; Wesson, R.; Coulais, A.; Fox, O. D.; Gastaud, R.; Glasse, A.; Jaspers, J.; Krause, O.; Lau, R. M.; Nayak, O.; Rest, A.; Colina, L.; van Dishoeck, E. F.; Guedel, M.; Henning, Th.; Lagage, P. -o.; Ostlin, G.; Ray, T. P.; Vandenbussche, B.
• 署名单位: Oskar Klein Centre; Stockholm University; University of London; University College London; Maynooth University; Dublin Institute for Advanced Studies; Oskar Klein Centre; Royal Institute of Technology; University of Edinburgh; Space Telescope Science Institute; Johns Hopkins University; National Aeronautics & Space Administration (NASA); NASA Jet Propulsion Laboratory (JPL); California Institute of Technology; Centre National de la Recherche Scientifique (CNRS); Universite Paris Saclay; Princeton University; Vrije Universiteit Brussel; University of Copenhagen; Niels Bohr Institute; National Aeronautics & Space Administration (NASA); NASA Ames Research Center; Universities Space Research Association (USRA); University of Leicester; Cardiff University; Universite PSL; Observatoire de Paris; Sorbonne Universite; Universite Paris Saclay; Max Planck Society; National Science Foundation (NSF); National Aeronautics & Space Administration (NASA); NASA Goddard Space Flight Center; Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Centro de Astrobiologia (INTA); Max Planck Society; Leiden University; Leiden University - Excl LUMC; University of Vienna; KU Leuven
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-8175
• DOI: 10.1126/science.adj5796
• 发表日期: 2024-02-23
• 页码: 898-903
• 关键词: gamma-tubulin complex; cryo-em; microtubule nucleation; ring complex; saccharomyces-cerevisiae; surface lattice; architecture; centrosome; refinement; interacts

摘要

The nearby Supernova 1987A was accompanied by a burst of neutrino emission, which indicates that a compact object (a neutron star or black hole) was formed in the explosion. There has been no direct observation of this compact object. In this work, we observe the supernova remnant with JWST spectroscopy, finding narrow infrared emission lines of argon and sulfur. The line emission is spatially unresolved and blueshifted in velocity relative to the supernova rest frame. We interpret the lines as gas illuminated by a source of ionizing photons located close to the center of the expanding ejecta. Photoionization models show that the line ratios are consistent with ionization by a cooling neutron star or a pulsar wind nebula. The velocity shift could be evidence for a neutron star natal kick.