Tag

Transient Event

All articles tagged with #transient event

astronomy2 years ago•3 min saved

"Surprising Brightness: Most Distant Active Black Hole 'Switches On' in Record-breaking Event"

Astronomers have observed a supermassive black hole, known as J221951, undergoing a dramatic "switching on" event, resulting in one of the brightest transient events ever recorded. The cause of this event is still unknown, but it could be due to the black hole consuming a star that ventured too close and being torn apart in a process called spaghettification. Another possibility is that the black hole is transitioning from a dormant to an active state, known as an active galactic nucleus. Further monitoring is needed to determine the exact cause of this event.

via Space.com|

#active-galactic-nuclei #astronomy #black-hole

space2 years ago•2 min saved

Black Hole's Energetic Awakening Captured by Astronomers

Astronomers searching for the counterpart of a gravitational wave event stumbled upon an incredibly bright and long-lasting transient event. The event, originating from a supermassive black hole named J221951, has been ongoing for 10 months and is estimated to have released over 10 times the energy the Sun will release in 10 billion years. The event could be either a tidal disruption event, where a star or gas cloud is ripped apart by the black hole's gravitational pull, or the initial phases of an active galactic nucleus. Further research is needed to determine the cause of this unusual event.

via IFLScience|

#active-galactic-nucleus #astronomers #space

astronomy2 years ago•3 min saved

"Supermassive Black Hole Devours Giant Star in Spectacular Display"

Astronomers have discovered a remote object, named "Scary Barbie," which is one of the longest, brightest, and most energetic cosmic explosions ever observed. It was born from the final death throes of a star being torn to shreds by a supermassive black hole. Scary Barbie is much brighter than any other transient event the astronomers could compare it to, and it has already burned incandescently for more than two years, with no indication it will sputter out. Further observations of Scary Barbie could enable astronomers to snap some high-resolution images of the incredibly rare cosmic outburst.

via Livescience.com|

#astronomy #black-hole #cosmic-explosion