The effect of baryons on the positions and velocities of satellite galaxies in the MTNG simulation
Boryana Hadzhiyska, Francisco Maion et al.
Paper
Details
#Baryons #SatelliteGalaxies #MTNGsimulation

The Andromeda Galaxy Quenches Its Satellite Galaxies Long Before They Fall In Galaxies grow massive through mergers with other galaxies. Massive galaxies like the Milky Way and Andromeda not only merge with other large galaxies, they also absorb their much smaller satellite dwarf...

The Andromeda Galaxy Quenches Its Satellite Galaxies Long Before They Fall In #Science #Space #Astrophysics #AndromedaGalaxy #SatelliteGalaxies

Dwarf Galaxies Like the Magellanic Clouds Have Their Own Small Satellite Galaxies Massive galaxies like the Milky Way have smaller satellite galaxies that are tidally disrupted and absorbed. Astronomers think this is how galaxies assemble hierarchically. New research examines galaxies...

Dwarf Galaxies Like the Magellanic Clouds Have Their Own Small Satellite Galaxies #Science #Space #Astronomy #DwarfGalaxies #MagellanicClouds #SatelliteGalaxies

A high-resolution telescopic image of Messier 109, a barred spiral galaxy seen face-on with a distinct central bar and tightly wound spiral arms. The galaxy glows with a soft bluish hue and appears near the lower center of the frame. Bright foreground stars with diffraction spikes dot the scene. In the upper right, the glare from the nearby bright star Phecda is visible. Three smaller, faint bluish galaxies — UGC 6969, UGC 6940, and UGC 6923 — appear scattered around the frame and may be satellite galaxies of M109.

📸 Messier 109
📅 June 27, 2025
📷 Robert Eder

#Messier109 #M109 #NGC3992 #BarredSpiralGalaxy #UrsaMajor #BigDipper #SatelliteGalaxies #DeepSky #GalaxyCluster #Astrophotography #StellarSnap #NightSky #TelescopeView #Cosmos #WideFieldAstro #Astronomy #APOD #Galaxies #SkyWatch #SpaceLovers #Universe

A stunning composite image showcasing the Andromeda Galaxy (M31) alongside a nearly full Moon, highlighting the galaxy's vast size compared to our lunar neighbor. The image reveals Andromeda's spiral arms, blue star clusters, and its satellite galaxies M32 and M110, all set against a backdrop of countless stars. The comparison emphasizes the immense scale of the Andromeda Galaxy, which is several times larger than the Moon's angular size in the Earth's sky despite being 2.5 million light-years away.

Astronomy Picture from 01/08/2013

Moon Over Andromeda

Source: https://apod.nasa.gov/apod/ap130801.html


#AndromedaGalaxy #M31 #Space #Cosmology #Galaxy #Astronomy #NightSky #MilkyWay #Moon #DeepSpace #AstroPhotography #Universe #SpiralGalaxy #SatelliteGalaxies #M32 #M110

A stunning telescopic image reveals dwarf galaxies NGC 147 and NGC 185, satellite galaxies of the Andromeda Galaxy, separated by only 35,000 light-years. These galaxies, along with the recently discovered Cassiopeia II, form a gravitationally bound group within Andromeda's extensive satellite system, showcased against a backdrop of countless distant stars.

Astronomy Picture from 04/11/2021

NGC 147 and NGC 185

Source: https://apod.nasa.gov/apod/ap211104.html


#DwarfGalaxies #NGC147 #NGC185 #AndromedaGalaxy #SatelliteGalaxies #BinaryGalaxies #DeepSpace #Cosmology #Astronomy #AstroPhotography #Space #Universe #GalaxyClusters