TY  - JOUR
AU  - Giannotti, Maurizio
AU  - Irastorza, Igor
AU  - Redondo, Javier
AU  - Ringwald, Andreas
TI  - Cool WISPs for stellar cooling excesses
JO  - Journal of cosmology and astroparticle physics
VL  - 2016
IS  - 05
SN  - 1475-7516
CY  - London
PB  - IOP
M1  - PUBDB-2016-02031
M1  - DESY-15-245
M1  - arXiv:1512.08108
SP  - 057 - 057
PY  - 2016
AB  - Several stellar systems (white dwarfs, red giants, horizontal branch stars and possibly the neutron star in the supernova remnant Cassiopeia A) show a preference for a mild non-standard cooling mechanism when compared with theoretical models. This exotic cooling could be provided by Weakly Interacting Slim Particles (WISPs), produced in the hot cores and abandoning the star unimpeded, contributing directly to the energy loss. Taken individually, these excesses do not show a strong statistical weight. However, if one mechanism could consistently explain several of them, the hint could be significant. We analyze the hints in terms of neutrino anomalous magnetic moments, minicharged particles, hidden photons and axion-like particles (ALPs). Among them, the ALP represents the best solution. Interestingly, the hinted ALP parameter space is accessible to the next generation proposed ALP searches, such as ALPS II and IAXO.
LB  - PUB:(DE-HGF)29 ; PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000389860500035
DO  - DOI:10.1088/1475-7516/2016/05/057
UR  - https://bib-pubdb1.desy.de/record/299846
ER  -