Claes Fransson

Employment

• Stockholms Universitet Professor

Education

Education history is unavailable.

Projects & Funding

Projects & funding information is unavailable.

Publications (44)

• The outer rings of SN 1987A from year 1994 to 2024
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202660353
  +Save
• Exploring the Central Region of SNR 0540-69.3 with JWST. I. Three-dimensional Morphology
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae644d
  +Save
• The Evolution of the Mid-infrared Spectrum of SN 1987A Observed with JWST MIRI/MRS
  The Astrophysical Journal 2026 DOI: 10.3847/1538-4357/ae5e68
  +Save
• SN 2023xgo: Helium-rich Type Icn or Carbon-Flash Type Ibn supernova?
  Anjasha Gangopadhyay, J. Sollerman, K. Tsalapatas +35 more
  Monthly Notices of the Royal Astronomical Society 2026 DOI: 10.1093/mnras/staf1517
  +Save
• Eruptive mass loss less than a year before the explosion of superluminous supernovae
  A. Gkini, Claes Fransson, R. Lunnan +23 more
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202557673
  +Save
• The Compact Object and Innermost Ejecta of SN 1987A
  The Astrophysical Journal 2025 DOI: 10.3847/1538-4357/adf741
  +Save
• Eruptive mass loss less than a year before the explosion of superluminous supernovae
  A. Gkini, Claes Fransson, R. Lunnan +47 more
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202452357
  +Save
• Tracing the Propagation of Shocks in the Equatorial Ring of SN 1987A over Decades with the Hubble Space Telescope
  The Astrophysical Journal 2024 DOI: 10.3847/1538-4357/ad812e
  +Save
• SN 2021adxl: A luminous nearby interacting supernova in an extremely low-metallicity environment
  Astronomy & Astrophysics 2024 DOI: 10.1051/0004-6361/202349036
  +Save
• A low-mass helium star progenitor model for the Type Ibn SN 2020nxt
  Monthly Notices of the Royal Astronomical Society 2024 DOI: 10.1093/mnras/stae1038
  +Save
• Hubble Space Telescope Images of SN 1987A: Evolution of the Ejecta and the Equatorial Ring from 2009 to 2022
  The Astrophysical Journal 2024 DOI: 10.3847/1538-4357/ad36cc
  +Save
• JWST MIRI Imager Observations of Supernova SN 1987A
  The Astrophysical Journal 2024 DOI: 10.3847/1538-4357/ad2770
  +Save
• Spectroscopic observations of progenitor activity 100 days before a Type Ibn supernova
  Astronomy & Astrophysics 2024 DOI: 10.1051/0004-6361/202449350
  +Save
• Emission lines due to ionizing radiation from a compact object in the remnant of Supernova 1987A
  Science 2024 DOI: 10.1126/science.adj5796
  +Save
• Ejecta, Rings, and Dust in SN 1987A with JWST MIRI/MRS
  The Astrophysical Journal 2023 DOI: 10.3847/1538-4357/ad0036
  +Save
• JWST NIRSpec Observations of Supernova 1987A—From the Inner Ejecta to the Reverse Shock
  The Astrophysical Journal Letters 2023 DOI: 10.3847/2041-8213/acd555
  +Save
• SN 2020qlb: A hydrogen-poor superluminous supernova with well-characterized light curve undulations
  Astronomy & Astrophysics 2023 DOI: 10.1051/0004-6361/202244086
  +Save
• SN 2019zrk, a bright SN 2009ip analog with a precursor
  Astronomy & Astrophysics 2022 DOI: 10.1051/0004-6361/202243452
  +Save
• Clumps and Rings of Ejecta in SNR 0540–69.3 as Seen in 3D
  The Astrophysical Journal 2021 DOI: 10.3847/1538-4357/ac2a41
  +Save
• Thermal Emission and Radioactive Lines, but No Pulsar, in the Broadband X-Ray Spectrum of Supernova 1987A
  The Astrophysical Journal 2021 DOI: 10.3847/1538-4357/ac052d
  +Save