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- {{Short description|Radio-astronomy observatory in Western Australia}} ...]], Australia's national science centre in 2009. It lies in a designated [[radio quiet zone]] located near [[Boolardy Station]] in the [[Murchison Shire]] o ...15 KB (2,076 words) - 10:59, 18 January 2025
- ...radio-telescopes have only one receiver at the focus of the telescope, but radio-telescopes are now starting to be equipped with focal plane arrays, which a ...lengths are large, the resulting feed arrays are amongst the largest radio-astronomy receivers ever built. Examples include the multi-beam arrays on the [[Parke ...6 KB (842 words) - 06:14, 20 April 2024
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- ...radio-telescopes have only one receiver at the focus of the telescope, but radio-telescopes are now starting to be equipped with focal plane arrays, which a ...lengths are large, the resulting feed arrays are amongst the largest radio-astronomy receivers ever built. Examples include the multi-beam arrays on the [[Parke ...6 KB (842 words) - 06:14, 20 April 2024
- {{Short description|Radio-astronomy observatory in Western Australia}} ...]], Australia's national science centre in 2009. It lies in a designated [[radio quiet zone]] located near [[Boolardy Station]] in the [[Murchison Shire]] o ...15 KB (2,076 words) - 10:59, 18 January 2025
- ...> 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" / ...B' configuration at a wavelength of {{convert|20|cm|MHz}} (in the [[L-band#Astronomy|L Band]]), with an [[angular resolution]] of 5 [[arcsecond]].<ref name="Sky ...10 KB (1,382 words) - 00:12, 19 August 2023
- {{Short description|Random fluctuations in radio waves of celestial origin}} ...ible spectrum|visible one]]. Interplanetary scintillation is the result of radio waves traveling through fluctuations in the density of the [[electron]] and ...10 KB (1,338 words) - 14:27, 27 November 2023
- The '''Baldwin effect''' in astronomy describes a relationship between continuum and emission-line fluxes observe ...nuum luminosity of the source.<ref name = Baldwin1977/> For flat-spectrum, radio-loud quasars the relation ...4 KB (559 words) - 15:38, 17 July 2024
- ...om 2010 until his death in late 2015 he was an [[emeritus]] professor of [[astronomy]] at the [[University of California, Berkeley]]. ...name="berkeley_astro">{{cite web|title=Hyron Spinrad, Professor, Berkeley Astronomy Department |url=http://astro.berkeley.edu/people/faculty/spinrad.html |acce ...8 KB (1,156 words) - 21:16, 27 August 2024
- ...radio telescope located in a [[radio quiet zone]] at the [[Murchison Radio-astronomy Observatory]] in Western Australia. It is a collaboration between [[Arizona ...ize, sat on a {{convert|30|x|30|m|ft}} ground shield. It is coupled with a radio receiver, with a 100m cable run to a digital spectrometer.<ref name="MIT" / ...8 KB (1,079 words) - 18:11, 27 September 2023
- ...41/http://www.haystack.mit.edu/edu/undergrad/materials/tut6.html The Radio Astronomy tutorial] presented by [[Massachusetts Institute of Technology|MIT's]] [[Ha [[Category:Antennas (radio)]] ...3 KB (521 words) - 14:52, 4 October 2022
- ...–Field coupling include the [[Square Kilometer Array]] and the [[Dark Ages Radio Explorer]]. ...ion by UV or X-ray sources | doi = 10.1051/0004-6361/201014347 | journal = Astronomy & Astrophysics | volume = 523 | pages = A4 | year = 2010 |bibcode = 2010A&A ...7 KB (978 words) - 17:50, 12 November 2024
- ...nstellation)|Taurus]]. It was discovered in 2007 with the [[National Radio Astronomy Observatory]]'s [[Robert C. Byrd Green Bank Telescope]] in a drift-scan sur ...ef name="Antoniadis2013"/> This measurement was done with a combination of radio timing and precise [[Astronomical spectroscopy|spectroscopy]] of the white ...12 KB (1,544 words) - 02:29, 30 July 2024
- ...[[gamma ray]]s, as opposed to lower energy photons as in the optical and [[radio frequency]] regions of the [[electromagnetic spectrum]]. An [[FM broadcasting|FM]] [[radio]] station transmitting at 100 [[megahertz|MHz]] emits photons with an ...5 KB (670 words) - 14:40, 20 November 2024
- ...ge-scale structure of the universe]] by using the integrated [[radio waves|radio emission]] from unresolved gas clouds. ...ssion line is [[redshift]]ed by the expansion of the Universe, so by using radio receivers that cover a wide frequency band, one can detect this signal as a ...13 KB (1,724 words) - 19:57, 5 September 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
- ...990|title=A VLT/FLAMES survey for massive binaries in Westerlund 1|journal=Astronomy & Astrophysics|volume=531|pages=A28|year=2011|last1=Clark|first1=J. S.|last ...massive stellar population of the super star cluster Westerlund 1|journal=Astronomy and Astrophysics|volume=434|issue=3|pages=949|last1=Clark|first1=J. S.|last ...16 KB (2,255 words) - 20:28, 10 January 2025
- ...ements imply significant evidence that we are living in a [[Hubble bubble (astronomy)|Hubble Bubble]] of 250 million light years in diameter which is 20% less d ...Cosmology and Gravitation, University of Portsmouth]] and the Institute of Astronomy, [[Royal Observatory Edinburgh]], [[University of Edinburgh]]. He joined th ...16 KB (2,116 words) - 21:56, 19 February 2025
- === Radio astronomy === ... GHz to 1000 GHz frequency range, and hence are used for [[radio astronomy]] at these frequencies.<ref>{{cite journal | last1=Zmuidzinas | first1=J. | ...14 KB (1,982 words) - 15:49, 8 January 2025
- ...a [[radio astronomy]] search for astronomical objects that rapidly vary in radio brightness, such as pulsars.<ref name=bailes/> Timing measurements using th .../public/pr/pr-pulsar-august2011-en.html|work=Max Planck Institut for Radio Astronomy|access-date=2011-08-26|url-status=dead|archive-url=https://web.archive.org/ ...10 KB (1,463 words) - 14:07, 9 December 2024
- {{About|the astronomy experiment||Quiet (disambiguation){{!}}Quiet}} '''QUIET''' was an [[astronomy]] [[experiment]] to study the polarization of the [[cosmic microwave backgr ...8 KB (1,156 words) - 12:45, 12 February 2025
- | Type = [[Outline of radio science|Radio science]]/[[Transponder]] ...2"/> LaRa will monitor the [[Doppler effect|Doppler frequency shift]] of a radio signal traveling between the Martian lander and the [[Earth]]. These Dopple ...10 KB (1,356 words) - 11:31, 20 December 2023
- ...ferometric visibility|visibility]] function") of an astronomical object, a radio astronomer can thereby reconstruct the source's brightness distribution and ...ence, and Scattering. In: Interferometry and Synthesis in Radio Astronomy. Astronomy and Astrophysics Library |date=2017 |publisher=Springer, Cham |isbn=978-3-3 ...26 KB (4,235 words) - 05:26, 18 November 2024