What astronomical object emerges sometimes from supernova instead of a black hole?
Magnetar
Blazar
Quasar
only a black hole can emerge from supernova
A magnetar is a type of neutron star with an extremely powerful magnetic field. The magnetic field decay powers the emission of high-energy electromagnetic radiation, particularly X-rays and gamma rays. As of March 2016, only 23 magnetars are known, with six more candidates awaiting confirmation.
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Answers by country
Magnetar
Blazar
Quasar
only a black hole can emerge from supernova
answers
Pakistan
18
the United States
111
Canada
11
Austria
52
India
200
Australia
21
the United Kingdom
59
Germany
389
Switzerland
30
Poland
3582
Lebanon
16
Greece
13
the Netherlands
11