October 22, 2020, scitechdaily.com: Galactic “Mystery Source” of Gamma Rays Identified: Record-Setting “Black Widow” Pulsar Citat: "...After more than two decades, an international research team led by the Max Planck Institute for Gravitational Physics (Albert Einstein Institute; AEI) in Hannover has identified a Galactic “mystery source” of gamma rays: a heavy neutron star with a very low mass companion orbiting it...This ‘odd couple’ orbits every 75 minutes, more quickly than all known comparable binaries...”The neutron star also spins around its own axis at more than 30,000 rpm, making it one of the fastest rotating. At the same time, its magnetic field – usually extremely strong in neutron stars – is exceptionally weak...“In binary systems like the one we have now discovered, pulsars are known as ‘black widows’ because, like spiders of the same name, they eat their partners, so to speak,” explains Clark..."
