New class of supernovae may have originated from magnetars` creation
Washington: Researchers have suggested that new class of supernovae could likely be originating from the creation of magnetars.
Astronomers affiliated with the Supernova Legacy Survey (SNLS) have discovered two of the brightest and most distant supernovae ever recorded, 10 billion light-years away and a hundred times more luminous than a normal supernova.
These newly discovered supernovae are especially puzzling because the mechanism that powers most of them - the collapse of a giant star to a black hole or normal neutron star - cannot explain their extreme luminosity.
Discovered in 2006 and 2007, the supernovae were so unusual that astronomers initially could not figure out what they were or even determine their distances from Earth.
One of the newly discovered supernovae, named SNLS-06D4eu, is the most distant and possibly the most luminous member of an emerging class of explosions called superluminous supernovae. These new discoveries belong to a special subclass of superluminous supernovae that have no hydrogen.
The new study finds that the supernovae are likely powered by the creation of a magnetar, an extraordinarily magnetized neutron star spinning hundreds of times per second.
Magnetars have the mass of the sun packed into a star the size of a city and have magnetic fields a hundred trillion times that of the Earth.
Co-author Daniel Kasen from UC Berkeley and Lawrence Berkeley National Lab created models of the supernova that explained the data as the explosion of a star only a few times the size of the sun and rich in carbon and oxygen.
The findings have been published in the Astrophysical Journal.
More from India
More from World
More from Sports
More from Entertaiment
- Is this for real: Ajinkya Rahane bizarre shot went for six, concerned Virat Kohli settles with smile — WATCH
- WATCH: Tom Latham takes IMPOSSIBLE catch to dismiss Faf du Plessis
- Azam Khan demands ban on cow slaughter across India, says Muslims should stop eating beef
- Asaduddin Owaisi asks Centre to clarify policy on buffalo meat export, Nirmala Sitharaman gives apt reply
- Sunil Grover to return as Dr Mashoor Gulati!