Hot, dense material surrounds O-type star with largest magnetic field known

23 September 2015 Astronomy Now

O-type stars are the hottest and brightest stars known. NASA’s Chandra X-ray Observatory has revealed that the magnetic field at the surface of NGC 1624-2 is 20,000 times stronger than at the surface of our Sun. NGC 1624-2 contains a raging storm of extreme stellar winds and dense plasma that gobbles up X-rays before they can escape into space.