Usualbneutrino flux from the sun

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We detect 1 neutrino from the Sun every 5 days at a neutrino observatory. During the supernova explosion 1987A we detected 10 neutrinos in 10 seconds with the same detector, which means that the neutrino arriving from SN 1987A was 4x10^5 times stronger than the usualbneutrino flux from the Sun. The star which created the blast is about 50 kpc from Earth, while the distance from the Sun is only 5x10^-6 pc (1AU).

If the "neutrino-luminosity" is proportional to the "light-luminosity", how many times more luminous was SN 1987A compared to the Sun?

The supernova was this bright for only about 1 year. Did it release more or less energy during this period than the Sun releases during its entire lifetime (10 billion years)? By what factor?

Reference no: EM132450453

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