Apresentação

Helioseismology With Long-Range Dark Matter-Baryon Interactions

“…The impact of DM in the Sun is studied by inferring the modifications that DM causes to the Sun's structure and to the solar observables. In the following, the standard solar model (SSM; e.g., Turck-Chieze & Lopes 1993;Lopes 2013) is used as our model of reference, which predicts solar neutrino fluxes and helioseismology data consistent with current measurements. The excellent agreement obtained between theory and observation results from the combined effort between the fields of helioseismolgy and solar modelling, a collaboration extended by several decades which lead to a high precision description of physical processes present inside the Sun (Turck-Chieze & Couvidat 2011; Turck-Chieze & Lopes 2012).…”

“…This was very relevant in the case of the physical processes related with microscopic physics, including the equation of state, opacities, nuclear reactions rates, and microscopic diffusion of helium and heavy elements. A detailed discussion about current predictions of the SSM and their uncertainties can be found in the literature (e.g., Turck-Chieze & Lopes 1993;Serenelli et al 2009;Guzik & Mussack 2010;Turck-Chieze et al 2010;Lopes & Turck-Chieze 2013;Lopes 2013;Lopes & Silk 2013). In all panels the red(blue) areas individuate the regions of the parameter space where ∆c 2 max > 4%(∆c 2 max < 2%) while those in light green refer to the regions where the agreement with helioseismic data is better than the SSM (2% < ∆c 2 max < 4%).…”

“…The computation of the impact of DM in the evolution of the Sun is done by a modified version of the cesam code (Morel 1997;Morel & Lebreton 2008), which has been widely used to compute the SSM and for modelling other stars by different research groups (Deheuvels et al 2010;Turck-Chieze et al 2010;Lopes 2013;Lopes & Turck-Chieze 2013).…”