Astronomy News

Tag X-ray

The Mutant Star

Accreting Millisecond X-Ray Pulsars are amazing objects (see also my research page in the section “Accreting Millisecond X-ray pulsars”). They are neutron stars that orbit around a relatively small star like our Sun or less massive and eat gas from… Continue Reading →

Do Mid-sized Black Holes Exist?

We know that black holes exist in Nature with at least two different sizes: super-massive ones, that live in the centre of galaxies and stellar-mass black holes. The origin and evolution of these two types of black hole are very… Continue Reading →

First Black Hole Mass and Spin Measured with Timing

Imagine having a black hole spinning around a normal companion star like our Sun. At some point of its evolution, the black hole can start removing and devouring matter from the outer layers of its companion star, in a process… Continue Reading →

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