Orbital telescope ESA (European space Agency) XMM-Newton (X-ray Multi-Mirror Mission) was first discovered in the Andromeda nebula rotating neutron star. This was reported on the ESA site.
Discovered neutron star rotates on its axis with a period of 1.2 seconds and around a companion star with a period of 1.3 hours. Neighbouring luminary is a source of matter that expires on a neutron star.
The search for neutron stars in the Andromeda nebula were carried out in the past few decades, but only in 2015, scientists, analyzing XMM-Newton data, was able to register the object in two of the 35 observations.
Neutron stars are dense remnants of a supernova explosion. As a rule, stars are in binary systems, their emission can detect them. Neutron stars are often found in the milky Way.
The Andromeda galaxy located approximately 2.5 million light-years from Earth in the constellation of the same name. Its radius exceeds 120 thousand light years (it is more than two times bigger than Galaxy). It is believed that in five billion years the Andromeda, the largest galaxy in the Local group, will absorb the milky Way.
