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- ...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== ...7 KB (1,027 words) - 21:40, 30 September 2023
- ...from the study of [[planet]] [[atmosphere]]s to the evolution of [[Galaxy|galaxies]]. From 2010 until his death in late 2015 he was an [[emeritus]] professor ...rnal | author = Spinrad, H. | title = Stellar Populations in the Nuclei of Galaxies | journal = Publications of the Astronomical Society of the Pacific | volum ...8 KB (1,156 words) - 21:16, 27 August 2024
- ...> The survey was started 50 years after the first systematic survey of the radio sky was completed by [[Grote Reber]] in April 1943.<ref name="Becker1995" / ...ey (2MASS)]].<ref name="new" /> The expectation was that <math>10^6</math> radio sources would be observed and 65,000 images produced by the survey;<ref nam ...10 KB (1,382 words) - 00:12, 19 August 2023
- ...nuum luminosity of the source.<ref name = Baldwin1977/> For flat-spectrum, radio-loud quasars the relation ...lines in the [[infrared]] range, e.g. in several [[Seyfert galaxy|Seyfert galaxies]].<ref name = Hoenig2008/> ...4 KB (559 words) - 15:38, 17 July 2024
- [[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" /> ...9 KB (1,233 words) - 22:33, 25 February 2025
- The '''Dark Ages Radio Explorer''' ('''DARE''') is a proposed [[NASA]] mission aimed at detecting ...g the first stars and black holes in the early Universe with the Dark Ages Radio Explorer (DARE) ...11 KB (1,462 words) - 16:23, 23 March 2024
- ...ombination (cosmology)|recombination]] occurred and before [[star]]s and [[galaxies]] formed is known as the "dark ages". During this time, the majority of [[m ...–Field coupling include the [[Square Kilometer Array]] and the [[Dark Ages Radio Explorer]]. ...7 KB (978 words) - 17:50, 12 November 2024
- | 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 ...15 KB (2,150 words) - 07:48, 1 November 2024
- | 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 ...16 KB (2,295 words) - 01:47, 30 December 2024
- ...ge-scale structure of the universe]] by using the integrated [[radio waves|radio emission]] from unresolved gas clouds. ...shift survey|galaxy redshift survey]], with the important distinction that galaxies need to be individually detected and measured, making intensity mapping a c ...13 KB (1,724 words) - 19:57, 5 September 2024
- ...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 ...26 KB (4,077 words) - 18:02, 14 November 2024
- ...erferometric]] array of 1024 6-[[meter]] (20[[Foot (unit)|ft]]) diameter [[radio telescope]]s, operating at 400-800[[megahertz|MHz]], that will be deployed {{Cite journal|author = L. Newburgh|title = HIRAX: A Probe of Dark Energy and Radio Transients ...15 KB (2,207 words) - 13:17, 2 June 2024
- ...a hundred have since been observed, with detections at optical, infrared, radio and X-ray wavelengths. Sometimes a star can survive the encounter with an S ...Tidal disruption of stars by black holes of 106–108 solar masses in nearby galaxies |journal=Nature |language=en |volume=333 |issue=6173 |pages=523–528 |bibcod ...21 KB (2,975 words) - 01:39, 7 February 2025
- ...Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies ...ust before, and emitted by, recombination, now seen with our telescopes as radio waves all over the sky since it is red-shifted. Therefore, when looking at, ...26 KB (3,764 words) - 02:43, 21 September 2024
- ...pulsar timing array program’ to observe three pulsars using the [[National Radio Astronomy Observatory]] 43 m telescope. ...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 ...24 KB (3,232 words) - 23:38, 22 February 2025
- ...xy, or other object. This glow is strongest in the microwave region of the radio spectrum. ...a |first2=Roberto |title=X-ray Polarization from Magnetar Sources |journal=Galaxies |date=February 2024 |volume=12 |issue=1 |pages=6 |doi=10.3390/galaxies12010 ...26 KB (3,649 words) - 04:41, 4 January 2025
- ...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 ...100 KB (14,565 words) - 21:06, 19 February 2025
- ...re proposed by some researchers to explain the unexpected very large early galaxies discovered by the [[James Webb Space Telescope]] (JWST).<ref name="jwst1" / ...broadly [[platykurtic]] were evident from JWST observations of early large galaxies.<ref name="jwst"/><ref name="Bird"/> Recent analyses agree, suggesting a br ...52 KB (7,285 words) - 19:39, 26 February 2025
- ...es a modification of Newton's laws to account for observed properties of [[galaxies]]. Modifying [[Newton's law of gravity]] results in [[modified gravity]], w ...difies Newton's laws for extremely small accelerations which are common in galaxies and galaxy clusters. This provides a good fit to galaxy rotation curve data ...80 KB (11,265 words) - 22:02, 1 March 2025
- [[File:Abell_2219_radio.png|thumb|Radio interferometric image of radio galaxies in the galaxy cluster Abell 2219. The images were constructed by data back- ...505.028 RESOLVE] is a Bayesian algorithm for aperture synthesis imaging in radio astronomy. RESOLVE is similar to D³PO, but it assumes a Gaussian likelihood ...32 KB (5,144 words) - 12:50, 15 February 2025