000316736 001__ 316736
000316736 005__ 20211110140504.0
000316736 020__ $$a978-3-935702-43-0
000316736 0247_ $$2datacite_doi$$a10.3204/DESY-PROC-2015-02/straniero_oscar
000316736 0247_ $$2ISSN$$a1435-8077
000316736 037__ $$aPUBDB-2017-00134
000316736 041__ $$aEnglish
000316736 1001_ $$0P:(DE-HGF)0$$aStraniero, Oscar$$b0
000316736 1112_ $$0C15-06-22.2$$2inspire$$a11th Patras Workshop on Axions, WIMPs and WISPs$$cZaragoza$$d2015-06-22 - 2015-06-26$$gAXION-WIMP 2015$$wSpain
000316736 245__ $$aAxion-Photon Coupling: Astrophysical Constraints
000316736 260__ $$aHamburg$$bVerlag Deutsches Elektronen-Synchrotron$$c2015
000316736 29510 $$aStraniero, Oscar "Axion-Photon Coupling: Astrophysical Constraints" in Proceedings, 11th Patras Workshop on Axions, WIMPs and WISPs (Axion-WIMP 2015) / Irastorza, Igor G., Redondo, Javier, Carmona, José Manuel, Cebrian, Susana, Dafni, Theopisti, Iguaz, Francisco J., Luzon, Gloria (eds.), Verlag Deutsches Elektronen-Synchrotron : 2015 ; AXION-WIMP 2015 : 11th Patras Workshop on Axions, WIMPs and WISPs, 2015-06-22 - 2015-06-26, Zaragoza
000316736 300__ $$a77-81
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000316736 4900_ $$0PERI:(DE-600)2450075-6$$aDESY-PROC
000316736 520__ $$aWe revise the astrophysical bound to the axion-photon coupling, as obtained by comparing $R=N_{HB}/N_{RGB}$, the ratio of the numbers of stars observed in the Horizontal Branch (HB) and in the Red Giant Branch (RGB) of 39 Galactic Globular Clusters with up-to-date theoretical predictions. First results have already been published in a PRL paper in 2014. Here we present a new and more accurate method to calculate the theoretical $R$, which makes use of synthetic Color-Magnitude diagrams to be directly compared to the observed (real) diagrams. Preliminary results of our analysis are discussed.
000316736 7001_ $$0P:(DE-HGF)0$$aAyala, Adrian$$b1
000316736 7001_ $$0P:(DE-HGF)0$$aGiannotti, Maurizio$$b2
000316736 7001_ $$0P:(DE-HGF)0$$aMirizzi, Alessandro$$b3
000316736 7001_ $$0P:(DE-HGF)0$$aDominguez, Inma$$b4
000316736 7870_ $$0PUBDB-2017-00118$$aIrastorza, Igor G. et. al.$$dVerlag Deutsches Elektronen-Synchrotron$$iisPartOf$$rDESY-PROC-2015-02$$tProceedings, 11th Patras Workshop on Axions, WIMPs and WISPs (Axion-WIMP 2015)
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