16 December 2016
Mini-spiral galaxies may transform how dark matter is perceived
...matter and dark energy. Mini-spiral galaxies are as the name suggests - spiral galaxies that look similar to our ...new kind of physics," continues Salucci. "Even in the largest spiral galaxies we find effects similar to the ones we observed, but they ...
20 September 2016
Astronomers detect a rare type of object known as a spiral DRAGN
...be the case. However in recent years, a handful of DRAGNs have been found in spiral galaxies and this is somewhat puzzling for those studying galaxy evolution. Spiral galaxies cannot undergo a major merger without evolving into another structure, and...
05 January 2016
High-Energy X-rays show Andromeda Galaxy in a different light
... Andromeda studies. Andromeda, also known as M31, is a spiral galaxy like our own, but is slightly larger in size and at ... in dark, clear skies. "Andromeda is the only large spiral galaxy where we can see individual X-ray binaries and study them ...
06 June 2016
Galaxies guilty of 'wasting' precious planet building material
... fraction of the oxygen that is five times ionized, which is the ion observed by COS." The CGM gas in spiral galaxies on the other hand reaches temperatures that are around fifty times hotter than the surface of the...
October 2016
The dwarf galaxy problem
... France Hawaii Telescope in four colour bands. Having multiple bands is useful as some galaxies are brighter in some bands than others. For example, spiral galaxies have a lot of young, blue stars so are brighter in some bands, whereas Elliptical...
29 March 2018
A see-through galaxy questions the need for dark matter
... of dark matter. In a theory that took root in the 1950s by astronomers examining the motions of stars in spiral galaxies, dark matter is currently believed to be an essential component of the Universe – making up a whopping ~80 percent of its mass...
