El telescopio Fermi detecta rayos gamma de una supernova superluminosa

El telescopio espacial de rayos gamma Fermi de la NASA ha detectado señales de rayos gamma de la supernova superluminosa SN 2017egm, lo que proporciona evidencia de que fue impulsada por un magnetar de rotación rápida. El hallazgo marca la primera detección confirmada de rayos gamma proveniente de una explosión estelar tan extrema. Los resultados fueron publicados en la revista Astronomy & Astrophysics.

La supernova hizo erupción en la galaxia NGC 3191, situada a unos 440 millones de años luz en la constelación de la Osa Mayor. Es una de las supernovas superluminosas más cercanas observadas desde la Tierra. Los investigadores analizaron años de datos de Fermi y descubrieron que, de los seis candidatos cercanos, solo la SN 2017egm mostró evidencia clara de rayos gamma.

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