Astronomers detected matter escaping neutron star in low-mass X-ray binary Swift J1858.6-0814 (a system containing neutron star and emitting X-rays). The detection was made in the visible and ultraviolet spectrum for the first time. Until now there were only observed systems with escaping cold or hot matter.
|Hubble||24. 4. 1990||Ongoing|
|XMM-Newton||10. 12. 1999||Ongoing|
|Swift||20. 11. 2004||Ongoing|
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Astronomers led by Manisha Caleb report discovery of previously unknown radio source PSR J0901-4046. It seems to be emitted by a pulsar (neutron star), but the time between the pulses is unusually long - 76 seconds. Previous slowest pulsar PSR J0250+5854 had a period of 24 seconds.
Astronomers led by Byeong-Cheol Lee have made a groundbreaking discovery, detecting a brown dwarf orbiting the red giant HD 18438. With a radius of 89 times that of the Sun, HD 18438 is now the largest known star to be orbited by an exoplanet or brown dwarf.