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ESA XMM-Newton Profile picture
ESA XMM-Newton
@ESA_XMM
ESA's X-ray satellite, in orbit since 1999 🛰✨💖 Opinions are our own. For formal requests please contact the helpdesk at https://t.co/GUf7N3URr1
Apr 12, 2021 • 5 tweets • 3 min read
Black holes become bright in X-rays (the type of light XMM-Newton observes) when they start actively accreting matter. The matter might come from a binary companion (for stellar mass black holes) or from galactic gas and dust for super-massive black holes. #BlackHoleWeek⚫️
1/5 Artist impression of a star... When falling onto the black hole the matter gets so hot that it starts to shine brightly in X-rays. Additionally magnetic fields and hot electrons may energize the photons further making them visible in hard X-rays that can be observed with @ESA_Integral!
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