14–19 May 2017
Thessaloniki, Greece
Europe/Athens timezone

Constraints to axion physics from Globular Clusters: an update

15 May 2017, 14:40
20m
Hotel MAKEDONIA PALACE (Thessaloniki, Greece)

Hotel MAKEDONIA PALACE

Thessaloniki, Greece

2, Megalou Alexandrou Avenue, GR-54640, Thessaloniki, Greece

Speaker

Dr Oscar Straniero (INAF (Istituto Nazionale di Astrofisica))

Description

New evolutionary models of low-mass stars that include axion productions due to Primakoff, Bremsstrahlung and Compton scattering are presented. These set of models has been used to calculate isochrones, luminosity functions (LFs) and synthetic colour-magnitude (CM) diagrams to be compared with their observational counterparts, i.e. LFs and CM diagrams of Galactic Globular Clusters stars. Based on these comparisons, updated constraints to both the axion-photon and axion-electron couplings are provided.

Primary author

Dr Oscar Straniero (INAF (Istituto Nazionale di Astrofisica))

Co-authors

Dr Alessandro Mirizzi (University of Bari (Italy)) Dr Inma Dominguez (University of Granada (Spain)) Dr Maurizio Giannotti (Barry University (Florida, USA))

Presentation materials