Astrophysics (Index)About

SN 1987A

(supernova in February 1987 rare for being visible by the naked eye)

SN 1987A is a 1987 supernova in the Large Magellanic Cloud, about 168000 light-years away, whose light reached Earth on February 23, 1987. Its apparent magnitude at its brightest was 3 in May 1987. Neutrino detectors, including the IMB detected bursts of neutrinos coincident with the supernova EMR reaching Earth. It has been much studied since.

It is considered a core collapse supernova and the supernova remnants are studied to figure out the workings of them. The SN 1987A remnant has more circular symmetry than spherical, suggesting the progenitor's stellar rotation was a factor. Observations of the light curve have shown that the explosion was highly asymmetric, i.e., an anisotropic explosion. There is effort to identify a resulting neutron star, e.g., by comparing observations to observed characteristics of remnants where there is clearer evidence of a neutron star.

Further reading:
/Lookback Years
~052kpc168klySN 1987A

Referenced by pages:
International Ultraviolet Explorer (IUE)
neutrino (ν)
supernova remnant (SNR)