Article (Scientific journals)
Further observations of the light echoes from SN 1987 A
Detal, Alain; Surdej, Jean; Hutsemekers, Damien et al.
1990In Astronomy and Astrophysics, 229, p. 427-430
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Keywords :
INTERSTELLAR MATTER; LIGHT SCATTERING; SUPERNOVA 1987A; ECHOES; GALACTIC RADIATION; MAGELLANIC CLOUDS
Abstract :
[en] Further direct observations of the light echoes from SN 1987 A were obtained on November 12 1988 with the 3.6-m telescope and EFOSC at ESO. In agreement with predictions made from earlier observations, the radii of the two light rings are measured to be 43.3 and 72.5 arcsec. However, a noticeable diaplacement of the center of the outer ring by 2.6 arcsec to the NE from the SN position is also reported. Application of the model of planar-like sheets of material located between the SN and the observer leads to improved results.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Detal, Alain ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Surdej, Jean  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Hutsemekers, Damien ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
Remy, M.
van Drom, E.;  European Southern Observatory, Santiago, Chile
Language :
English
Title :
Further observations of the light echoes from SN 1987 A
Publication date :
01 March 1990
Journal title :
Astronomy and Astrophysics
ISSN :
0004-6361
eISSN :
1432-0746
Publisher :
EDP Sciences, Les Ulis, France
Volume :
229
Pages :
427-430
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 02 September 2009

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