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Jacoby, J.K. Vogel, J. M. Carmona, J. Redondo, J. Ruz, K. Barth, K. Jakovcic, K. Konigsmann, K. Kousouris, K. van Bibber, K. Zioutas, L. Di Lella, L. Stewart, L. Walckiers, M. Davenport, M. D. Hassinoff, M.J. Pivovaroff, M. Krcmar, M. Kuster, P. Friedrich, R. Kotthaus, S. Gninenko, T. Dafni, T. Geralis, T. Papaevangelou, Y. Semertzidis","submitted_at":"2013-02-26T00:32:06Z","abstract_excerpt":"In non-hadronic axion models, which have a tree-level axion-electron interaction, the Sun produces a strong axion flux by bremsstrahlung, Compton scattering, and axio-recombination, the \"BCA processes.\" Based on a new calculation of this flux, including for the first time axio-recombination, we derive limits on the axion-electron Yukawa coupling g_ae and axion-photon interaction strength g_ag using the CAST phase-I data (vacuum phase). For m_a < 10 meV/c2 we find g_ag x g_ae< 8.1 x 10^-23 GeV^-1 at 95% CL. 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Belov, A. Liolios, A. Ljubicic, A. Rodriguez, B. Beltran, B. Lakic, C. Eleftheriadis, D. H. H. Hoffmann, D. Kang, D.W. Miller, E. Ferrer Ribas, F. H. Heinsius, G. Fanourakis, G. Lutz, G. Luzon, G. Raffelt, H. Brauninger, H. Fischer, H. Gomez, H. Riege, I. Giomataris, I.G. Irastorza, I. Savvidis, J. A. Garcia, J.A. Villar, J.D. Vieira, J. Englhauser, J. Franz, J. Galan, J.I. Collar, J. Jacoby, J.K. Vogel, J. M. Carmona, J. Redondo, J. Ruz, K. Barth, K. Jakovcic, K. Konigsmann, K. Kousouris, K. van Bibber, K. Zioutas, L. Di Lella, L. Stewart, L. Walckiers, M. Davenport, M. D. Hassinoff, M.J. Pivovaroff, M. Krcmar, M. Kuster, P. Friedrich, R. Kotthaus, S. Gninenko, T. Dafni, T. Geralis, T. Papaevangelou, Y. 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