Supernova Remnants: An Odyssey in Space after Stellar death

Supernova Remnants: An Odyssey in Space after Stellar death

Supernova Remnants: An Odyssey in Space after Stellar death

Katia

1st Abstract

Title (1st Abstract)

The circumstellar ring of SN 1987A

First Author

Claes Fransson

Affiliation

Oskar Klein Center, Department of Astronomy, Stockholm University

Additional Authors

Claes Fransson / Department of Astronomy, The Oskar Klein Centre, Stockholm University, Alba Nova University Centre, SE-106 91 Stockholm, Sweden
Josefin Larsson / KTH, Department of Physics, and the Oskar Klein Centre, AlbaNova, SE-106 91 Stockholm, Sweden
Dominic Pesce / Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904-4325, USA
Peter Challis / Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-19, Cambridge, MA 02138, USA
Roger A. Chevalier / Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904-4325, USA
Kevin France / Laboratory for Atmospheric and Space Physics, Center for Astrophysics and Space Astronomy, University of Colorado, 392 UCB, Boulder, CO 80309, USA
Robert P. Kirshner / Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-19, Cambridge, MA 02138, USA
Bruno Leibundgut / European Southern Observatory, Karl-Schwarzschild-Strasse, 2, D-85748 Garching bei München, Germany
Peter Lundqvist / Department of Astronomy, The Oskar Klein Centre, Stockholm University, Alba Nova University Centre, SE-106 91 Stockholm, Sweden
Richard McCray / Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA
Jason Spyromilio / European Southern Observatory, Karl-Schwarzschild-Strasse, 2, D-85748 Garching bei München, Germany
Francesco Taddia / Department of Astronomy, The Oskar Klein Centre, Stockholm University, Alba Nova University Centre, SE-106 91 Stockholm, Sweden
Anders Jerkstrand / School of Mathematics and Physics, Queens University Belfast, Belfast BT7 1NN, UK
Seppo Mattila / Finnish Centre for Astronomy with ESO (FINCA), Tuorla Observatory, Department of Physics and Astronomy, University of Turku, Väisäläntie 20, FI-21500 Piikkiö, Finland
Nathan Smith / Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Jesper Sollerman / Department of Astronomy, The Oskar Klein Centre, Stockholm University, Alba Nova University Centre, SE-106 91 Stockholm, Sweden
J. Craig Wheeler / Department of Astronomy, University of Texas, Austin, TX 78712-0259, USA
Arlin Crotts / Columbia Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, NY 10027, USA
Peter Garnavich / 25 Nieuwland Science, University of Notre Dame, Notre Dame, IN 46556-5670, USA
Kevin Heng / University of Bern, Center for Space and Habitability, Sidlerstrasse 5, CH-3012 Bern, Switzerland
Stephen S. Lawrence / Department of Physics and Astronomy, Hofstra University, Hempstead, NY 11549, USA
Nino Panagia / Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA, INAF-NA, Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, I-80131 Naples, Italy, Supernova Ltd, OYV #131, Northsound Road, Virgin Gorda VG 1150, Virgin Islands, UK
Chun S. J. Pun / Department of Physics, University of Hong Kong, Pokfulam Road, Hong Kong, PR China
George Sonneborn / Observational Cosmology Laboratory, Code 665, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
Ben Sugerman / Department of Physics and Astronomy, Goucher College, 1021 Dulaney Valley Road, Baltimore, MD 21204, USA

Presentation options

Poster

Session

10. SNe and SNRs with circumstellar interactions

1st Abstract

The circumstellar ring of supernova 1987A first became visible a few months after the explosion due to photoionisation by the supernova flash. From 1995 hotspots appeared in the ring and their brightness increased nearly exponentially as a result of interaction with the supernova blast wave.
Imaging and spectroscopic observations with the Hubble Space Telescope and the Very Large Telescope now show that both the shocked and the unshocked emission components from the ring have been decreasing since $sim2009$. In addition, the most recent images reveal the brightening of new spots outside the ring. These observations indicate that the hotspots are being dissolved by the shocks and that the blast wave is now expanding and interacting with dense clumps beyond the ring. Based on the currently observed decay we predict that the ring will be destroyed by $sim2025$, while the blast wave will reveal the distribution of gas as it expands outside the ring, thus tracing the mass-loss history of the supernova progenitor.