Talk:double radio-source associated with a galactic nucleus

RFD
== double radio-source associated with a galactic nucleus ==

Sum of parts (and the plural) SemperBlotto (talk) 21:04, 11 January 2015 (UTC)
 * It seems like it might be a set phrase. I find it interesting that the commonly used abbreviation, DRAGN, requires an unusual selection of letters from the initial phrase (a direct acronym would be more like "DRSAWAGN" or at least "DRAWGN". Can this be reworded and maintain the same technical meaning? bd2412 T 21:49, 11 January 2015 (UTC)
 * More likely, the phrase was coined for the purpose of providing a suitable acronym, and is probably only found in actual use as a gloss for the acronym. Chuck Entz (talk) 02:19, 12 January 2015 (UTC)
 * Oh, you cynic. DCDuring TALK 03:13, 12 January 2015 (UTC)
 * There are three Google Books hits, albeit one is in German. Renard Migrant (talk) 12:17, 14 January 2015 (UTC)
 * It is not sum of parts. It is not any old set of two radio-sources that are associated with any galactic nucleus. For instance, it is not about two radio-loud pulsars that orbit the galactic nucleus. Nor it is for a pair of H-I regions inhabiting the galactic nucleus region. Etc, off to infinity, for all the varieties of radio sources that can be found close to galactic nuclei. It is specifically about the configuration of radio lobes carved out of the extragalactic medium that line up with the galactic nucleus, which are detectable from Earth. If one or both of the radio lobes are not detectable from Earth, then it doesn't fit, even though theoretical models of the galaxy will feature two lobes. -- 65.94.40.137 05:37, 12 January 2015 (UTC)
 * I'm with Semper. We cant't include every seven-word combination which has an exact meaning. Very often they have. --Hekaheka (talk) 22:04, 17 January 2015 (UTC)


 * I created WT:RFV. It is not obvious that this is a sum of parts, but if it is not attested, the sum-of-parts question is moot. --Dan Polansky (talk) 18:24, 21 January 2015 (UTC)
 * As of 9 May 2015, there are no attested usage added.
 * DRAGON is a name proposed in 1994 for such phenomena The snippet shows it seems to be part of a working vocabulary in astronomy. Here are three usages that need to be examined, since the snippets do not inform enough about the gloss: The universal book of astronomy , Galaxies in turmoil, Jets in extragalactic radio sources. —BoBoMisiu (talk) 12:56, 9 May 2015 (UTC)

Striking as no consensus to delete; the entry may still fail RfV. bd2412 T 16:22, 16 May 2015 (UTC)

RFV discussion: January–August 2015
Any attestations meeting WT:ATTEST, including "use in permanently recorded media"? --Dan Polansky (talk) 18:22, 21 January 2015 (UTC)
 * It's used in published articles from paper science journals, so yes. -- 65.94.40.137 14:33, 28 January 2015 (UTC)
 * The end result of this effect is the perception of a symmetrically receding pair of sound sources, which, in the luminal world, is a good description of symmetric radio sources (Double Radio source Associated with Galactic Nucleus)
 * DOI 10.1142/S0218271807010559 Are Radio Sources and Gamma Ray Bursts Luminal Booms? Manoj Thulasidas (2007) International Journal of Modern Physics D
 *  Since nobody has yet proposed a name for this phenomenon, I shall do so now: we should call them DRAGNs, which is an acronym for 'Double Radio source Associated with Galactic Nucleus'.
 * DOI 10.1007/3-540-57164-7_74 ; BIBCODE 1993LNP...421....1L ; DRAGNs J.P.Leahy (1993) Jets in Extragalactic Radio Sources, Proceedings of a Workshop Held at Ringberg Castle, Tegernsee, FRG, September 22-28, 1991.
 * This is the coining event (in 1991), that coins the term ; the Proceedings are a published (on paper) compendium of the conference.
 * double radio source associated with a galactic nucleus
 * pagee 282 (2007) C. R. Kitchin Galaxies in Turmoil Springer ISBN 9781846286711
 * 1 - Double Radio source Associated with Galactic Nucleus; see Leahy (1993)
 * DOI 10.1111/j.1365-2966.2004.07685.x ; BIBCODE 2004MNRAS.350..865G ; A multiband study of Hercules A - I. ROSAT observations of the intracluster medium Gizani, Nectaria A. B.; Leahy, J. P. (2004) Monthly Notices of the Royal Astronomical Society, Volume 350, Issue 3, pp. 865-878


 * It would be helpful if Wiktionary had the external reference templates that Wikipedia has for linking to DOIs, PMIDs, PMCIDs, BIBCODEs, since they link to information to find the published science papers and their journals. -- 65.94.40.137 15:00, 28 January 2015 (UTC)


 * I can find this (without the hyphen):
 * 2008, AJW Echtenkamp, AS Bowles, AJ Sinker, Radio and Starburst Galaxies, in The RBSE Journal (5, 2008), page 5:
 * A Double Radio Source Associated with a Galactic Nucleus (DRAGN) is a radio source that is produced by jets produced by active galactic nucleus that is not in the Milky Way.
 * Most other hits are mentions (sometimes in wordlists). - -sche (discuss) 08:57, 27 July 2015 (UTC)

Etymology: "The name derives from the unified model of active galactic nuclei, requiring that the radio emissions from lobes carved out of extragalactic space on either side of the accreting supermassive black hole at the galactic core by beams emitted by that black hole be detectable from Earth." Definition: "A type of radio galaxy with two lobes of detectable radio emissions on either side of the galactic nucleus." "Synonyms: DRAGN abbreviation, double-lobed radio galaxy." - -sche (discuss) 02:07, 6 August 2015 (UTC)
 * RFV-failed. Content was: