A prompt radio burst from supernova 1987A in the Large Magellanic Cloud

Nature ◽  
1987 ◽  
Vol 327 (6117) ◽  
pp. 38-40 ◽  
Author(s):  
A. J. Turtle ◽  
D. Campbell-Wilson ◽  
J. D. Bunton ◽  
D. L. Jauncey ◽  
M. J. Kesteven ◽  
...  
Keyword(s):  
Radio Burst ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Supernova 1987A

scholarly journals Initial Radio Observations of SN1987a in the Large Magellanic Cloud

1988 ◽  
Vol 129 ◽  
pp. 189-189
Author(s):  
A. J. Turtle ◽  
D. Campbell-Wilson ◽  
J. D. Bunton ◽  
D. L. Jauncey ◽  
M. J. Kesteven ◽  
...  
Keyword(s):  
Flux Density ◽  
Southern Hemisphere ◽  
Radio Burst ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Radio Observations ◽  
Radio Monitoring ◽  
Supernova 1987A ◽  
Peak Flux ◽  
Radio Outburst

A prompt radio burst has been observed from the supernova 1987a in the Large Magellanic Cloud. Observations were made at 0.843, 1.415, 2.29, and 8.41 GHz. At frequencies around 1 GHz, the peak flux density reached about 150 mJy and occurred within four days of the supernova. This event may be a weak precursor to a major radio outburst of the type previously observed in other extragalactic supernovae. Radio monitoring of the supernova is continuing at each of the above frequencies, and coordination is underway of a southern hemisphere VLBI array to map the radio outburst region as it expands. Differential astrometry carried out on prime-focus plates taken with the Anglo-Australian telescope indicates that the component, star 1, of Sanduleak's star SK-69202 is within 0.05 ± 0.13 arcsec of the supernova.

The interstellar spectrum towards the supernova 1987A in the Large Magellanic Cloud

Nature ◽  
1987 ◽  
Vol 326 (6115) ◽  
pp. 770-772 ◽  
Author(s):  
Paola Andreani ◽  
Roger Ferlet ◽  
Alfred Vidal-Madjar
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Supernova 1987A

CONSTRAINT ON THE MASS AND LIFETIME OF HEAVY NEUTRINOS FROM THE SUPERNOVA 1987A IN THE LARGE MAGELLANIC CLOUD

1987 ◽  
Vol 02 (05) ◽  
pp. 293-298 ◽  
Author(s):  
MARIKO TAKAHARA ◽  
KATSUHIKO SATO
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Tau Neutrinos ◽  
Supernova 1987A ◽  
Stringent Constraint ◽  
Γ Ray

If heavy neutrinos were emitted from the supernova 1987A in the Large Magellanic Cloud (LMC) and decayed outside the star, a γ-ray burst would have been observed after the ν-burst. If this γ-ray burst was not observed, it would impose a constraint on the mass, mv, and lifetime, τν, of heavy neutrinos. We investigate this constraint on the assumption that the γ-ray burst was not observed and obtain a more stringent constraint than that imposed by cosmology. We find that the range of mass and lifetime of tau neutrinos (mv~50 MeV , τν~103 sec ), which is allowed by previous constraints from experiments and cosmology, is completely prohibited by the present constraint provided that the radius of the progenitor of this supernova is less than 1013 cm .

The supernova 1987A in the Large Magellanic Cloud

1989 ◽  
Vol 52 (11) ◽  
pp. 1421-1473 ◽  
Author(s):  
W Hillebrandt ◽  
P Hoflich
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Supernova 1987A

Supernova 1987A in the Large Magellanic Cloud - Initial observations at Cerro Tololo

1987 ◽  
Vol 320 ◽  
pp. 589 ◽  
Author(s):  
V. M. Blanco ◽  
B. Gregory ◽  
M. Hamuy ◽  
S. R. Heathcote ◽  
M. M. Phillips ◽  
...  
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Supernova 1987A

An atlas of the optical spectrum of supernova 1987A in the large magellanic cloud

1990 ◽  
Vol 11 (1) ◽  
pp. 81-123
Author(s):  
V. J. Mclntyre ◽  
A. C. Gilmore ◽  
J. B. Hearnshaw
Keyword(s):  
Optical Spectrum ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Supernova 1987A
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