About: Spinning dust     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : dbo:Organisation, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)
QRcode icon
http://dbpedia.demo.openlinksw.com/c/5wiWYP8kRT

In astronomy, spinning dust emission is a mechanism proposed to explain anomalous microwave emission from the Milky Way. The emission could arise from the electric dipole of very rapidly spinning (10–60 GHz) extremely small (nanometer) dust grains as suggested by Bruce T. Draine and Alex Lazarian in 1998, most likely polycyclic aromatic hydrocarbons. The anomalous emission was first discovered as a by-product of Cosmic Microwave Background observations which make very sensitive measurements of the microwave sky which have to identify and remove contamination from the galaxy. The smallest dust grains are thought to have only hundreds of atoms.

AttributesValues
rdf:type
rdfs:label
  • Poussière tournoyante (fr)
  • Spinning dust (en)
rdfs:comment
  • In astronomy, spinning dust emission is a mechanism proposed to explain anomalous microwave emission from the Milky Way. The emission could arise from the electric dipole of very rapidly spinning (10–60 GHz) extremely small (nanometer) dust grains as suggested by Bruce T. Draine and Alex Lazarian in 1998, most likely polycyclic aromatic hydrocarbons. The anomalous emission was first discovered as a by-product of Cosmic Microwave Background observations which make very sensitive measurements of the microwave sky which have to identify and remove contamination from the galaxy. The smallest dust grains are thought to have only hundreds of atoms. (en)
  • En astronomie, la poussière tournoyante est un modèle d'explication des rayonnements irréguliers de micro-ondes provenant de la Voie lactée, et même au-delà. Ces émissions résulteraient de décharges électriques au sein d'une nuée de grains de poussière très fine (chaque grain a 10-50 atomes de large) tournant à une très grande fréquence (10–60 GHz). La découverte des rayonnements résultat d'observations précises du fond diffus cosmologique en vue d'identifier et expliquer toute source d'émission galactique. (fr)
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
sameAs
dbp:wikiPageUsesTemplate
has abstract
  • En astronomie, la poussière tournoyante est un modèle d'explication des rayonnements irréguliers de micro-ondes provenant de la Voie lactée, et même au-delà. Ces émissions résulteraient de décharges électriques au sein d'une nuée de grains de poussière très fine (chaque grain a 10-50 atomes de large) tournant à une très grande fréquence (10–60 GHz). La découverte des rayonnements résultat d'observations précises du fond diffus cosmologique en vue d'identifier et expliquer toute source d'émission galactique. D'abord, on considéra l'émission irrégulière de micro-ondes comme une concordance statistique surprenante entre les variations de micro-ondes et l'infrarouge lointain. Ce signal provenant de la poussière fut beaucoup plus fort qu'attendu, s'il provenait du rayonnement blanc. (fr)
  • In astronomy, spinning dust emission is a mechanism proposed to explain anomalous microwave emission from the Milky Way. The emission could arise from the electric dipole of very rapidly spinning (10–60 GHz) extremely small (nanometer) dust grains as suggested by Bruce T. Draine and Alex Lazarian in 1998, most likely polycyclic aromatic hydrocarbons. The anomalous emission was first discovered as a by-product of Cosmic Microwave Background observations which make very sensitive measurements of the microwave sky which have to identify and remove contamination from the galaxy. The smallest dust grains are thought to have only hundreds of atoms. (en)
gold:hypernym
prov:wasDerivedFrom
page length (characters) of wiki page
foaf:isPrimaryTopicOf
is Link from a Wikipage to another Wikipage of
is Wikipage redirect of
is foaf:primaryTopic of
Faceted Search & Find service v1.17_git147 as of Sep 06 2024


Alternative Linked Data Documents: ODE     Content Formats:   [cxml] [csv]     RDF   [text] [turtle] [ld+json] [rdf+json] [rdf+xml]     ODATA   [atom+xml] [odata+json]     Microdata   [microdata+json] [html]    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 08.03.3332 as of Dec 5 2024, on Linux (x86_64-generic-linux-glibc212), Single-Server Edition (378 GB total memory, 71 GB memory in use)
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2025 OpenLink Software