Chronologically, the first attempts to explain the rotation curves of galaxies were made using the Newtonian approximation. It is within this theoretical framework that we made, on the one hand, the hypothesis of the existence of an exotic matter (because invisible and insensitive to EM) and, ...
In this comic, three types of research are presented. First,Cueballpresents an analysis of an existing theory, testing to see if it holds up under unusual circumstances. Second,Blondiepresents a new theory; to prove that it has merit, it is tested on "standard" circumstances, presumably older...
Based on the new catalog, we show that one might expect an increased number of GCs around irregular galaxies of types 9 and 10 from the hypothesis that distant compact sources are gravitationally lensed by GCs in the halos of foreground galaxies. The King model is used to determine the ...
Explain reflection and its types.Reflection:Reflection is a characteristic wave as well as of particles. When a moving object or wae encounters a barrier in its path, the direction of motion changes. This is called reflection. Reflection is highly studied in optics. When a ray of light ...
Depiction of two large galaxies, one with four jets coming out of its center, the other a flat disc. Several smaller galaxies and/or stars are shown around them.] So I decided to simulate a universe.[The next four panels take up the seventh line of the comic. They are of similar ...
According to the theory, the lithosphere is around 100 km thick and it overlies a molten layer (known as aesthenosphere). The lithosphere is broken up into several large plates called tectonic plates. These plates are in constant motion. The collision, divergence and...
We use a non-negative least-squares technique to derive a near optimal set of local luminosity functions for different spectral types of galaxies by fitting to the observed optical and near-infrared counts, B — R colors, and redshift distributions for galaxies with 15 ≤ B ≤ 27. Our ...
Based on the new catalog, we show that one might expect an increased number of GCs around irregular galaxies of types 9 and 10 from the hypothesis that distant compact sources are gravitationally lensed by GCs in the halos of foreground galaxies. The King model is used to determine the ...
Morphologies for the AGN host galaxies were derived from the Galaxy Zoo project. Our results suggest that broad-line AGN and narrow-line AGN reside in widely different environments where the neighbours to Type-2 AGN are more star-forming and bluer than those of Type-1 AGN. There is a ...
Many large galaxies have an AGN, a small bright central region powered by matter spiralling into asupermassive black hole. When these black holes are vigorously swallowing matter, they are surrounded by hot, rapidly-moving gas known as the "broad-line region" (so-called because the spectral lin...