Extended X-ray emission around an ultraluminous X-ray pulsar

The accretion of matter onto a compact object (neutron star or black hole) is one of the main and most efficient sources of energy in astrophysics. This energy undergoes transformations up to expressing itself in the form of luminous radiation that we observe as a celestial source or mechanical energy of matter expelled from the … Read more Extended X-ray emission around an ultraluminous X-ray pulsar

Eliciting an energetic secret from the Crab Nebula

The Crab Nebula is the remnant of a supernova in our Galaxy which was observed almost 1000 years ago. Although it corresponds to one of the most studied celestial objects, its extension in very high energy gamma-rays has up to now remained unknown. The international team of scientists of the H.E.S.S. telescopes now finally succeeded … Read more Eliciting an energetic secret from the Crab Nebula

WVU astronomers help detect the most massive neutron star ever measured

West Virginia University researchers have helped discover the most massive neutron star to date, a breakthrough uncovered through the Green Bank Telescope in Pocahontas County. The neutron star, called J0740+6620, is a rapidly spinning pulsar that packs 2.17 times the mass of the sun (which is 333,000 times the mass of the Earth) into a … Read more WVU astronomers help detect the most massive neutron star ever measured

Astrophysicists link brightening of pulsar wind nebula to pulsar spin-down rate transition

Astrophysicists have discovered that the pulsar wind nebula (PWN) surrounding the famous pulsar B0540-69 brightened gradually after the pulsar experienced a sudden spin-down rate transition (SRT). This discovery, made by a group of astrophysicists led by GE Mingyu and LU Fangjun at the Institute of High Energy Physics of the Chinese Academy of Sciences, provides … Read more Astrophysicists link brightening of pulsar wind nebula to pulsar spin-down rate transition

Glitch in neutron star reveals its hidden secrets

Neutron stars are not only the most dense objects in the Universe, but they rotate very fast and regularly. Until they don’t. Occasionally these neutron stars start to spin faster, caused by portions of the inside of the star moving outwards. It’s called a “glitch” and it provides astronomers a brief insight into what lies … Read more Glitch in neutron star reveals its hidden secrets