“We have never seen anything like this in the 24 years we have studied the supermassive black hole. It’s usually a pretty quiet, wimpy black hole on a diet. We don’t know what is driving this big feast.” Source: https://earthsky.org/space/milky-ways-black-hole-appears-to-be-getting-hungrier…
Tag: event horizon
A distant galaxy’s black hole seen to flare unexpectedly
Astronomers have a new name for these sorts of flares from supermassive black holes in distant galaxies: they’re calling them quasi-periodic eruptions. “Giant black holes regularly flicker like a candle but the rapid, repeating changes seen in GSN 069 from December onwards are something completely new,” said one scientist. Source: https://earthsky.org/space/unexpected-periodic-flares-from-distant-galaxys-black-hole…
Astronomy ambassadors to Chile: ALMA radio telescope
Robert Pettengill’s final report on his recent trip to Chile with the Astronomy in Chile Educator Ambassador Program. Thank you, Rob! Source: https://earthsky.org/astronomy-essentials/aceap-2019-alma-chile-pettengill…