X-ray illumination of the ejecta of supernova 1987A

J. Larsson (), C. Fransson (), G. Östlin, P. Gröningsson, A. Jerkstrand, C. Kozma, J. Sollerman, P. Challis, R. P. Kirshner, R. A. Chevalier, K. Heng, R. McCray, N. B. Suntzeff, P. Bouchet, A. Crotts, J. Danziger, E. Dwek, K. France, P. M. Garnavich, S. S. Lawrence, B. Leibundgut, P. Lundqvist, N. Panagia, C. S. J. Pun, N. Smith, G. Sonneborn, L. Wang and J. C. Wheeler
Additional contact information
J. Larsson: The Oskar Klein Centre, Stockholm University, 106 91 Stockholm, Sweden
C. Fransson: The Oskar Klein Centre, Stockholm University, 106 91 Stockholm, Sweden
G. Östlin: The Oskar Klein Centre, Stockholm University, 106 91 Stockholm, Sweden
P. Gröningsson: The Oskar Klein Centre, Stockholm University, 106 91 Stockholm, Sweden
A. Jerkstrand: The Oskar Klein Centre, Stockholm University, 106 91 Stockholm, Sweden
C. Kozma: The Oskar Klein Centre, Stockholm University, 106 91 Stockholm, Sweden
J. Sollerman: The Oskar Klein Centre, Stockholm University, 106 91 Stockholm, Sweden
P. Challis: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-19, Cambridge, Massachusetts 02138, USA
R. P. Kirshner: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS-19, Cambridge, Massachusetts 02138, USA
R. A. Chevalier: University of Virginia
K. Heng: Eidgenössische Technische Hochschule Zürich, Institute for Astronomy, Wolfgang-Pauli-Strasse 27, CH-8093 Zürich, Switzerland
R. McCray: JILA, University of Colorado
N. B. Suntzeff: George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Texas A&M University
P. Bouchet: DSM/IRFU/Service d’Astrophysique Commissariat á l’Energie Atomique et aux Energies Alternatives, Saclay, Orme des Merisiers, FR 91191 Gif-sur-Yvette, France
A. Crotts: Mail Code 5240, Columbia University, 550 West 120th Street, New York, New York 10027, USA
J. Danziger: Osservatorio Astronomico di Trieste, Via Tiepolo 11, Trieste 34131, Italy
E. Dwek: NASA Goddard Space Flight Center, Code 665
K. France: Center for Astrophysics and Space Astronomy, University of Colorado
P. M. Garnavich: 225 Nieuwland Science, University of Notre Dame
S. S. Lawrence: Hofstra University
B. Leibundgut: ESO, Karl-Schwarzschild-Strasse 2, 85748 Garching, Germany
P. Lundqvist: The Oskar Klein Centre, Stockholm University, 106 91 Stockholm, Sweden
N. Panagia: Space Telescope Science Institute, 3700 San Martin Drive
C. S. J. Pun: University of Hong Kong, Pok Fu Lam Road, Hong Kong, China
N. Smith: Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, Arizona 85721, USA
G. Sonneborn: NASA Goddard Space Flight Center, Code 665
L. Wang: Texas A&M University
J. C. Wheeler: University of Texas

Nature, 2011, vol. 474, issue 7352, 484-486

Abstract: SN 1987A takes new direction The SAINTS (SN 1987A Intensive Study) team has been observing the nearby supernova SN 1987A using the Hubble Space Telescope for 17 years. They have been rewarded with a view of a phase in the life of a supernova that has never previously been observed — the point at which the energy emitted comes from interactions between the ejecta and the surrounding medium. This source took over from the initial flash of light from shock heating, and a period of decades during which the decay of radioactive elements was the prime energy source. The Hubble data suggest that an increase in the brightness of SN 1987A since 2001 is the result of heat from X-rays produced as the ejecta interacts with the surrounding material.

Date: 2011
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DOI: 10.1038/nature10090

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