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{{Short description|Observable quantity in imaging astronomical interferometry}} ...hase''' is an observable quantity in imaging [[astronomical interferometer|astronomical interferometry]], which allowed the use of [[Very Long Baseline Interferome ...

{{Infobox astronomical survey}} ...> 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" / ...

...llar Populations in the Nuclei of Galaxies | journal = Publications of the Astronomical Society of the Pacific | volume = 73 | issue = 434 | pages = 336–337 | date |editor1=Bunker, Andrew |editor2=van Breugel, Wil | publisher = Astronomical Society of the Pacific ...

...ion times greater than the hydrogen line, and is produced by astrophysical sources such as stars and [[quasar]]s. Neutral hydrogen absorbs Lyman-alpha photons ...–Field coupling include the [[Square Kilometer Array]] and the [[Dark Ages Radio Explorer]]. ...

...rces, our measurement will no longer be dominated by a single source; both sources will contribute almost equally to the wavefront at large distances. ...(spatially) coherent if seen from far away. In the visualization the three sources (black dots) are incoherent with each other, the grey lines are the zeros o ...

...07"/> Its rapid rotation may enable strong [[aurora|auroral]] [[radio wave|radio]] emissions via particle interactions in its [[magnetic field]], as observe ...0 [[ultracool dwarf]]s including 2MASS J0407+1546 was published in ''[[The Astronomical Journal]]'' in September 2008.<ref name="Reid2008"/> ...

...07"/> Its rapid rotation may enable strong [[aurora|auroral]] [[radio wave|radio]] emissions via particle interactions in its [[magnetic field]], as observe ...gnated alternatively as SDSS J121951.45+312849.4) was published in ''[[The Astronomical Journal]]'' in June 2006.<ref name="Chiu2006"/> ...

...46....0C |title=VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) |journal=CDS/ADC Collection of Electronic Catalogues |pages=I ...r Westerlund 1: The Initial Mass Function and Mass Segregation|journal=The Astronomical Journal|volume=145|issue=2|pages=46|last1=Lim|first1=Beomdu|last2=Chun|firs ...

...46....0C |title=VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) |journal=CDS/ADC Collection of Electronic Catalogues |pages=I .../65|s2cid=53393926}}</ref> (4.65 × 10⁸ [[Kilometre|km]], 3.10 [[Astronomical unit|au]]). This corresponds to a volume 298 million times bigger than the ...

...us (constellation)|Taurus]]. It was discovered in 2007 with the [[National Radio Astronomy Observatory]]'s [[Robert C. Byrd Green Bank Telescope]] in a drif ...This measurement was done with a combination of radio timing and precise [[Astronomical spectroscopy|spectroscopy]] of the white dwarf companion. ...

...dal disruption event''' ('''TDE''') is a [[time-domain astronomy|transient astronomical source]] produced when a [[star]] passes so close to a [[supermassive black ...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 ...

...e very near part of the infrared spectrum and at that time widely used for astronomical observations. However they required long exposure times and were often hype ...spectrum lacked any emission or absorption lines. Later it was shown to be radio-quiet as well. In 1970 [[Hyron Spinrad]] suggested that Maffei 1 is a nearb ...

...astronomy]] to peer into potential ancient [[Astrophysics|astrophysical]] sources and [[Timeline of the early universe|early Universe]] processes, inaccessib ...pulsar timing array program’ to observe three pulsars using the [[National Radio Astronomy Observatory]] 43 m telescope. ...

...ies|volume=143|pages=23–32|date=10 April 2000|title=The VizieR database of astronomical catalogues |last1=Ochsenbein|first1=F. |first2=P.|last2=Bauer |first3=J.|la ...the speed of light for higher-energy light gamma-rays and the lower-energy radio waves and visible light. Such a variation would contradict [[Lorentz invari ...

...|first1=D. W. |title=Variability of R CrB and NML Cyg at 3.5 μ|journal=The Astronomical Journal |date=June 1975 |volume=80 |issue=6 |pages=451–453 |doi=10.1086/111 ...st6=G. | last7=Tarter | first7=J. | journal=[[Monthly Notices of the Royal Astronomical Society]] | volume=225 | issue=3 | pages=491–498 | doi=10.1093/mnras/225.3. ...

{{Short description|Radio waves produced by the Sun}} ...are primarily responsible for the intense spikes of radiation called solar radio bursts, which are byproducts of the same processes that lead to other forms ...

They were soon located, in 1963, via their [[Hydrogen line|neutral hydrogen radio emission]]. They were traveling toward the galactic disk at a very high vel ...emissions was completed using the [[Dwingeloo Radio Observatory|Dwingeloo radio telescope]] in the [[Netherlands]]. From this survey, astronomers were able ...

This page lists examples of [[magnetic moment]]s produced by various sources, grouped by '''orders of magnitude'''. The magnetic moment of an object is ...strong magnetic fields ∼10¹¹⁻¹⁵ [[gauss (unit)|G]] ('classical' radio pulsars, 'magnetars', X-ray pulsars), whereas old neutron stars have weak f ...

Transit-time measurement underlies most [[radio navigation]] systems for boats and aircraft, for example, [[radar]] and the By using sources of several wavelengths to generate sum and difference [[Envelope (waves)#Ex ...

| axis_unitless = 3.52 [[astronomical unit|AU]] ...Luhman&nbsp;16&nbsp;A and B orbit each other at a distance of about 3.5 [[astronomical unit]]s{{r|Luhman2013}} with an [[orbital period]] of approximately 26.6 ye ...