When Galaxies Collide: Euclid Reveals What Triggers Active Black Holes YouTube video by SETI Institute

What happens when galaxies collide? 💥 We talk about our latest Euclid results showing how mergers ignite actively feeding supermassive black holes.

www.youtube.com/live/YMm_KOV...

@ec-euclid.bsky.social
@sronspace.bsky.social

#Astronomy #BlackHoles #GalaxyMergers #EuclidMission #AI #WomenInSTEM

The Andromeda galaxy quenches its satellite galaxies long before they fall in Astronomers know that mergers play a huge role in galaxy growth. Right now, the Milky Way is slowly consuming the Large and Small Magellanic Clouds. The evidence is a stream of gas called the Magellanic Stream that's about 600,000 light-years long. The Milky Way (MW) is stripping this gas from the clouds, which don't have enough mass to retain it. They're losing the gravitational tug-of-war with the much more massive MW.

🌌 Our Milky Way is *eating* galaxies! 🌠 The Magellanic Clouds are losing a 600,000 light-year gas stream in a cosmic tug-of-war. #galaxymergers

Source: phys.org/news/2025-11-andromeda-g...

Observationally derived change in star-formation rate as mergers
progress
B. Margalef-Bentabol, L. E. Suelves et al.
Paper
Details
#Astrophysics #GalaxyMergers #StarFormationRate

8/11 Possible explanations include binary black hole "scouring" during galaxy mergers, powerful AGN feedback processes, or remnants of extremely luminous quasars from the early Universe.

Each scenario reveals different aspects of cosmic evolution.
#Quasars #GalaxyMergers

NSF NOIRLab Astronomer Discovers Oldest Known Spiral Galaxy in the Universe | Newswise An international team led by NSF NOIRLab astronomer Christina Williams has discovered the most distant spiral galaxy known to date. Named Zhúlóng, meaning ‘Torch Dragon’ in Chinese mythology, this ult...

NSF NOIRLab Astronomer Discovers Oldest Known Spiral Galaxy in the Universe
www.newswise.com/articles/nsf...
#galaxy #spiralgalaxy #EarlyUniverse #JamesWebbSpaceTelescope #JWST #nsfnoirlab #Redshift #BIGBANG #GalaxyMergers

A captivating image of the NGC 7771 galaxy group, located 200 million light-years away in the constellation Pegasus. The image showcases NGC 7771, a large edge-on spiral galaxy, alongside NGC 7769, a face-on spiral, and other interacting galaxies. Faint streams of stars and foreground dust clouds from our Milky Way add depth and complexity to this stunning cosmic scene. The galaxies' gravitational interactions hint at future mergers.

Astronomy Picture from 21/01/2010

Dust and the NGC 7771 Group

Source: https://apod.nasa.gov/apod/ap100121.html


#NGC7771 #GalaxyGroup #CosmicInteraction #DeepSpace #PegasusConstellation #SpiralGalaxies #GalaxyMergers #Astrophotography #Space #Astronomy #Universe #MilkyWay #Nebulae #AstroImage

A stunning deep-space image of elliptical galaxy NGC 7600, located 160 million light-years away in the constellation Aquarius. The galaxy showcases a remarkable outer halo of nested shells and broad circumgalactic structures, providing compelling evidence for the role of dark matter in galaxy formation through mergers. The image spans about 1/2 degree on the sky.

Astronomy Picture from 23/12/2011

Shell Galaxy NGC 7600

Source: https://apod.nasa.gov/apod/ap111223.html


#NGC7600 #EllipticalGalaxy #GalaxyMergers #DarkMatter #Cosmology #Astronomy #Space #Astrophysics #DeepSpace #AquariusConstellation

Characterizing the Molecular Gas in Infrared Bright Galaxies with CARMA We present the CO(1-0) maps of 28 infrared-bright galaxies from the Great Observatories All-Sky Luminous Infrared Galaxy Survey (GOALS) taken with the Combined Array for Research in Millimeter...

Finally firing up the 🦋profile! I was warned by a friend that a permanent job dilates time and that "almost done!" paper is going to take a LOT longer! 😅

Well, many years later, that "almost done" is DONE! Please check out my new paper! #galaxymergers #carma #astroph
arxiv.org/abs/2409.09116