HCG 16
HCG 16
NGC 5044
SL2S J085446-012137
Stephan's Quintet
Stephan's Quintet
[FGH2007] 99
Groups of GalaxiesMost galaxies in the local universe, including our own Milky Way, are members of poor galaxy groups. The realization that many groups are X-ray sources has led to considerable interest in these systems. The X-ray emission in groups is typically extended on scales of hundreds of kiloparsecs. X-ray spectroscopy suggests the emission mechanism is most likely a combination of thermal bremsstrahlung and line emission. This interpretation requires that the entire volume of groups be filled with a hot, low-density gas often referred to as the intragroup medium in analogy to the intracluster medium found in richer systems. [Ref 8] |
| HCG 16 | HCG 16 | NGC 5044 | SL2S J085446-012137 | Stephan's Quintet |
| Stephan's Quintet | [FGH2007] 99 |