PSR J1745−2900

PSR J1745−2900 , also SGR J1745−29 , is a magnetar at a distance of 3 arc seconds from the supermassive black hole Sagittarius A * in the center of the Milky Way . The magnetar lies in the constellation Sagittarius . Its emissions were first discovered by Swift on April 24, 2013 and identified as periodic using NuSTAR; further investigations with the radio telescope Effelsberg and other telescopes followed. The object opens up the possibility of studying the magnetization of the gas in the outer area of the accretion disk of Sgr A *, which is of crucial importance for understanding it.

The magnetar is about 9,000 years old. The magnetic flux density is 10 ¹⁴ Gauss . The dispersion measure , 1778 pc / cm³, and the rotation measure, 66,960 rad / cm², are the largest measures measured for pulsars .

Web links

Max Planck Society: A magnet in the heart of the Milky Way August 14, 2013
Zeit Online: A magnetic field feeds the black hole of the Milky Way August 14, 2013
scinexx.de: Magnetar in the Milky Way Center January 14, 2019

Individual evidence

↑ ^a ^b The proper motion of the galactic center pulsar relative to Sagittarius A *. Retrieved February 5, 2017 .

[Bower16-1] The proper motion of the galactic center pulsar relative to Sagittarius A *. Retrieved February 5, 2017 .