000408339 001__ 408339 000408339 005__ 20211110151242.0 000408339 010__ $$a 000408339 020__ $$a978-3-935702-83-6 000408339 0247_ $$2datacite_doi$$a10.3204/DESY-PROC-2013-04/roncadelli_marco 000408339 0247_ $$2ISSN$$a1435-8077 000408339 037__ $$aPUBDB-2018-02792 000408339 041__ $$aEnglish 000408339 0881_ $$aDESY-PROC-2013-04 000408339 088__ $$2DESY$$aDESY-PROC-2013-04 000408339 1001_ $$0P:(DE-HGF)0$$aRoncadelli, M.$$b0$$eCorresponding author 000408339 1112_ $$0C13-06-24.5$$2inspire$$a9th Patras Workshop on Axions, WIMPs and WISPs$$cMainz$$d2013-06-24 - 2013-06-28$$gAXION-WIMP 2013$$wGermany 000408339 245__ $$aVery-high-energy quasars hint at ALPs 000408339 260__ $$aHamburg$$bVerlag Deutsches Elektronen-Synchrotron$$c2013 000408339 29510 $$aRoncadelli, M. "Very-high-energy quasars hint at ALPs" in Proceedings, 9th Patras Workshop on Axions, WIMPs and WISPs (AXION-WIMP 2013) / Oberlack, Uwe, Sissol, Pierre (eds.), 2013 ; AXION-WIMP 2013 : 9th Patras Workshop on Axions, WIMPs and WISPs , 2013-06-23 - 2013-06-28, Mainz 000408339 300__ $$a89-92 000408339 3367_ $$2ORCID$$aCONFERENCE_PAPER 000408339 3367_ $$033$$2EndNote$$aConference Paper 000408339 3367_ $$2BibTeX$$aINPROCEEDINGS 000408339 3367_ $$2DRIVER$$aconferenceObject 000408339 3367_ $$0PUB:(DE-HGF)29$$2PUB:(DE-HGF)$$aReport$$mreport 000408339 3367_ $$2DataCite$$aOutput Types/Conference Paper 000408339 3367_ $$0PUB:(DE-HGF)8$$2PUB:(DE-HGF)$$aContribution to a conference proceedings$$bcontrib$$mcontrib$$s1533892981_17297 000408339 3367_ $$0PUB:(DE-HGF)7$$2PUB:(DE-HGF)$$aContribution to a book$$mcontb 000408339 4900_ $$0PERI:(DE-600)2450075-6$$aDESY-PROC 000408339 520__ $$aOne of the mysteries of very-high-energy (VHE) astrophysics is the observatio of flat spectrum radio quasars (FSRQs) above about 30 GeV, because at those energies their broad line region should prevent photons produced by the central engine to escape. Although a few astrophysical explanations have been put forward, they are totally ad hoc. We show that a natural explanation emerges within the conventional models of FSRQs provided that photon-ALP oscillations take place inside the source for the model parameters within an allowed range. 000408339 536__ $$0G:(DE-HGF)POF3-899$$a899 - ohne Topic (POF3-899)$$cPOF3-899$$fPOF III$$x0 000408339 588__ $$aDataset connected to GVK 000408339 650_7 $$0(DE-588)4220935-3$$2gnd$$aHypothetisches Teilchen 000408339 693__ $$0EXP:(DE-MLZ)NOSPEC-20140101$$5EXP:(DE-MLZ)NOSPEC-20140101$$eNo specific instrument$$x0 000408339 7001_ $$0P:(DE-HGF)0$$aGalanti, G.$$b1 000408339 7001_ $$0P:(DE-HGF)0$$aTavecchio, F.$$b2 000408339 7001_ $$0P:(DE-HGF)0$$aBonnoli, G.$$b3 000408339 7870_ $$0PUBDB-2015-05816$$aOberlack, Uwe et. al.$$iisPartOf$$rDESY-PROC-2013-04$$tProceedings, 9th Patras Workshop on Axions, WIMPs and WISPs (AXION-WIMP 2013) 000408339 8564_ $$uhttps://bib-pubdb1.desy.de/record/408339/files/fulltext.pdf$$yOpenAccess 000408339 909CO $$ooai:bib-pubdb1.desy.de:408339$$pdnbdelivery$$pdriver$$pVDB$$popen_access$$popenaire 000408339 9131_ $$0G:(DE-HGF)POF3-899$$1G:(DE-HGF)POF3-890$$2G:(DE-HGF)POF3-800$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bProgrammungebundene Forschung$$lohne Programm$$vohne Topic$$x0 000408339 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 000408339 915__ $$0LIC:(DE-HGF)CCBY4$$2HGFVOC$$aCreative Commons Attribution CC BY 4.0 000408339 9201_ $$0I:(DE-H253)L-20120731$$kL$$lBibliothek und Dokumentation$$x0 000408339 980__ $$acontrib 000408339 980__ $$aVDB 000408339 980__ $$aUNRESTRICTED 000408339 980__ $$areport 000408339 980__ $$acontb 000408339 980__ $$aI:(DE-H253)L-20120731 000408339 9801_ $$aFullTexts