Sentences with phrase «larger host galaxies»
Throughout the universe, countless small galaxies rotate around larger host galaxies — our Milky Way has at least a few dozen hangers - on — and theory predicts that they should move randomly.
http://www.sciencemag.org/ Not exact matches
«NGC 1277's black hole could be many times more massive than its largest known compete tor, which is estimated but not confirmed to be between 6 billion and 37 billion solar masses in size.It makes up about 59 percent of its host galaxy's central mass — the bulge of stars at the core.
In late February and March of this year, Williams and Berger investigated the supposed host galaxy in detail using the NSF's Jansky Very Large Array network of radio telescopes.
Forgan and his co-authors found that when galaxies collide, the habitable zone is transformed and then gradually settles back to its general trend: Stars at larger distances from the galactic center have higher chances of hosting planets hospitable to life.
«We were surprised to find that a large proportion of pairs of satellite galaxies have oppositely directed velocities if they are situated on opposite sides of their giant galaxy hosts,» said lead author Neil Ibata of the Lycée International in Strasbourg, France.
The stark features — each large enough to swallow 600 galaxies the size of our Milky Way — show that black holes can disrupt starbirth and otherwise influence matter far beyond their host galaxies.
Such a shortfall is particularly prominent in luminous infrared galaxies (LIRGs), which have high star formation (and thus CCSN) rates and host bright and crowded nuclear regions, where large extinctions and reduced search detection efficiency likely lead to a significant fraction of CCSNe remaining undiscovered.
The supermassive black hole at the center of NGC 4258 is about ten times larger than the one in the Milky Way, and is also consuming material at a faster rate, potentially increasing its impact on the evolution of its host galaxy.
Understanding these similarities and differences between the LMC — SMC — Milky - Way system and this analog are an important first step to studying dwarf galaxy pairs as they interact near the massive halos of their large spiral hosts.
The current explanation is that such quasars and their host galaxies assembled within even larger haloes of dark matter, which enabled them to form very quickly.
A galaxy's core size typically is correlated to the dimensions of its host galaxy, but in this case, the central region is much larger than astronomers would expect for the galaxy's size.
«It appears that that relation does not work very well with extremely massive black holes; they are a larger fraction of the host galaxy's mass,» Ma said.