000483243 001__ 483243 000483243 005__ 20221018210735.0 000483243 0247_ $$2inspire$$ainspire:825180 000483243 0247_ $$2datacite_doi$$a10.3204/PHPPUBDB-11756 000483243 037__ $$aPUBDB-2022-05210 000483243 041__ $$aEnglish 000483243 082__ $$a530 000483243 088__ $$2DESY$$aDESY-09-080 000483243 1001_ $$0P:(DE-H253)PIP1007208$$aBurrage, Clare$$b0 000483243 245__ $$aSearching for axion-like-particles in the sky. 000483243 260__ $$c2009 000483243 3367_ $$0PUB:(DE-HGF)25$$2PUB:(DE-HGF)$$aPreprint$$bpreprint$$mpreprint$$s1666111925_14463 000483243 3367_ $$2ORCID$$aWORKING_PAPER 000483243 3367_ $$028$$2EndNote$$aElectronic Article 000483243 3367_ $$2DRIVER$$apreprint 000483243 3367_ $$2BibTeX$$aARTICLE 000483243 3367_ $$2DataCite$$aOutput Types/Working Paper 000483243 500__ $$a© Published by Elsevier B.V. 000483243 520__ $$aIf dark energy couples to the fields of the standard model we can hope to detect or constrain it through non-gravitational effects. If the dark energy field couples to photons it behaves as an Axion-Like-Particle (ALP). ALPs mix with photons in the presence of magnetic fields and hence affect astronomical observations. We show that empirically established luminosity relations can be used as a new test for ALPs and that when applied to observations of active galactic nuclei this is highly suggestive of the existence of a very light ALP. 000483243 536__ $$0G:(DE-HGF)POF1-520$$a520 - Astroteilchenphysik (POF1-500)$$cPOF1-500$$fPOF I$$x0 000483243 536__ $$0G:(DE-HGF)POF4-899$$a899 - ohne Topic (POF4-899)$$cPOF4-899$$fPOF IV$$x1 000483243 588__ $$aDataset connected to DataCite 000483243 650_7 $$2INSPIRE$$aaxion: search for 000483243 650_7 $$2INSPIRE$$afield theory: scalar 000483243 650_7 $$2INSPIRE$$aphoton axion: coupling 000483243 650_7 $$2INSPIRE$$amagnetic field 000483243 650_7 $$2INSPIRE$$aluminosity 000483243 650_7 $$2INSPIRE$$aAGN 000483243 650_7 $$2INSPIRE$$aoptics 000483243 650_7 $$2INSPIRE$$aastrophysics 000483243 650_7 $$2INSPIRE$$anumerical calculations 000483243 693__ $$0EXP:(DE-MLZ)NOSPEC-20140101$$5EXP:(DE-MLZ)NOSPEC-20140101$$eNo specific instrument$$x0 000483243 7870_ $$0PHPPUBDB-11756$$aBurrage, Clare$$dAmsterdam : Elsevier, 2009$$iIsParent$$rDESY-09-080$$tSearching for axion-like-particles in the sky. 000483243 8564_ $$uhttps://bib-pubdb1.desy.de/record/483243/files/21196642.pdf$$yOpenAccess 000483243 8564_ $$uhttps://bib-pubdb1.desy.de/record/483243/files/21196642.pdf?subformat=pdfa$$xpdfa$$yOpenAccess 000483243 909CO $$ooai:bib-pubdb1.desy.de:483243$$popenaire$$popen_access$$pVDB$$pdriver$$pdnbdelivery 000483243 9101_ $$0I:(DE-588b)2008985-5$$6P:(DE-H253)PIP1007208$$aDeutsches Elektronen-Synchrotron$$b0$$kDESY 000483243 9131_ $$1G:(DE-HGF)POF1-520$$2G:(DE-HGF)POF1-500$$3G:(DE-HGF)POF1$$4G:(DE-HGF)POF$$aDE-HGF$$bStruktur der Materie$$lAstroteilchenphysik$$x0 000483243 9131_ $$0G:(DE-HGF)POF4-899$$1G:(DE-HGF)POF4-890$$2G:(DE-HGF)POF4-800$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$aDE-HGF$$bProgrammungebundene Forschung$$lohne Programm$$vohne Topic$$x1 000483243 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 000483243 9201_ $$0I:(DE-H253)T-20120731$$kT$$lTheorie-Gruppe$$x0 000483243 980__ $$apreprint 000483243 980__ $$aVDB 000483243 980__ $$aUNRESTRICTED 000483243 980__ $$aI:(DE-H253)T-20120731 000483243 9801_ $$aFullTexts