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...Galaxies Catalogue|PGC]] 62756, [[Catalogue of Galaxies and of Clusters of Galaxies|CGCG]] 229-015, KIC 006932990, 2PBC J1905.3+4232}} ...has been referred to by [[NASA]] and other space agencies as hosting an [[active galactic nucleus]], a [[quasar]], and a [[Seyfert galaxy]], each of which o ...

...with black hole spins; for instance, [[relativistic jet|jets]] in [[active galaxies]] are believed to be launched parallel to the spin axes of supermassive bla ==Connection with radio galaxies== ...

...n the electromagnetic spectra of [[quasar]]s and [[Active galactic nucleus|active galactic nuclei]], namely an [[anticorrelation]] between the [[equivalent w ...lines in the [[infrared]] range, e.g. in several [[Seyfert galaxy|Seyfert galaxies]].<ref name = Hoenig2008/> ...

[[File:Analyzing Hot DOG Galaxies (PIA15815).jpg|thumb|Luminosity plot for hot DOGs and a prototypical [[lumi ...f their galactic mass in the central black hole than is observed in normal galaxies.<ref name="newsci20120830" /> ...

...ge. Points are labelled by galaxy name; all points in this diagram are for galaxies that have a clear, [[Kepler's laws of planetary motion|Keplerian]] rise in ...Black holes and galaxy evolution | volume = 197 | book-title = Dynamics of Galaxies: from the Early Universe to the Present | publisher = [[Astronomical Societ ...

| known_for = Research on the structure of galaxies and active galactic nuclei, especially in the early universe ...esearch focuses on the structure of galaxies and [[active galactic nucleus|active galactic nuclei]], especially in the early universe. She is an associate pr ...

...2003A&A...412...45P |title=HYPERLEDA. I. Identification and designation of galaxies |journal=Astronomy and Astrophysics |volume=412 |pages=45–55 |last1=Paturel ...=The ATLAS3D project - I. A volume-limited sample of 260 nearby early-type galaxies: Science goals and selection criteria |journal=Monthly Notices of the Royal ...

...com/2012/09/06/blowhard-galaxies-and-the-great-cosmic-wind/|title=Blowhard Galaxies and the Great Cosmic Wind|last=Cray|first=Daniel|newspaper=Time|access-date ...he investigation of the origin and regulating mechanisms of the wind is an active research topic. ...

...y aimed to contribute to science on [[quasar]]s and [[active galaxy|active galaxies]]; [[galaxy evolution]]; [[galactic astronomy]]; the [[large-scale structur ...lation function (astronomy)|two-point correlation function]] between radio galaxies was observed.<ref name="Cress1996" /> ...

| names = [[Principal Galaxies Catalogue|PGC]] 9892, [[Uppsala General Catalogue Addendum|UGCA]] 034<ref n ...nown to belong to a separate group, the [[IC 342/Maffei Group]]. It was [[galaxies named after people|named]] after [[Paolo Maffei]], who discovered it and th ...

| website=MARKARIAN2 – Markarian Galaxies Optical Database ...quatorial&Equinox=2000|title=Parameter Display for single row in Markarian Galaxies Optical Database}}</ref><ref name="mgod" />{{efn|name=size|Calculated from ...

...0=Peter |date=2017-01-21 |title=The stellar mass–size relation for cluster galaxies at z = 1 with high angular resolution from the Gemini/GeMS multiconjugate a </math> galaxies per arcminute<math>^{-2} ...

...y. They have been observed in the Milky Way's halo and within other nearby galaxies. ...s are probably spawned by interactions between the Milky Way and satellite galaxies, such as the [[Magellanic Clouds|Large and Small Magellanic Clouds]] (LMC a ...

...y did 10–12 billion years ago.<ref name=ESA>{{cite web |title=Star-forming galaxies like grains of sand |url=http://oshi.esa.int/#detail=image.html?id=36 |acce Active galactic nuclei have also been studied in the area, for example MBC2005.<re ...

Working with nearby [[Galaxy|galaxies]] and [[Galaxy cluster|clusters]], it was found that there is no significan ==== Active galactic nuclei jet models ==== ...

...ole binary|black hole binaries]] in the centres of [[Galaxy merger|merging galaxies]], where tens of millions of [[solar mass]]es are in orbit with a period be ...(constellation)|Scutum]] which would contain at least thousands of merging galaxies. ...

...agazine)|Wired]] |accessdate=10 January 2023 }}</ref><ref name=FPI_1/> Pea galaxies are so-named because of their small size and greenish appearance in the ima "Pea" galaxies were first discovered in 2007 by the volunteer [[citizen scientists]] withi ...

...er particles that are not organized into distinct structures like stars or galaxies.}} in [[orbit]]al motion around a massive [[primary (astronomy)|central bod ...g rid of angular momentum in a forming star to reionizing the universe (in active galactic nuclei), but their origin is still not well understood.}} ...

...16697327}}</ref> Much closer black-hole binaries are likely in single-core galaxies with double emission lines. Examples include SDSS J104807.74+005543.5<ref n When two galaxies collide, the supermassive black holes at their centers are very unlikely to ...

...|4.1}} Clouds of hydrogen collapsed very slowly to form stars and [[galaxy|galaxies]], so there were few sources of light and the emission from these sources w ...int around 200 to 500 million years, the earliest generations of stars and galaxies form (exact timings are still being researched), and early large structures ...