65 citations · 100 across the 4 of their papers we have counts for
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Evolution of the Chameleon Scalar Field in the Early Universe
David F. Mota, Camilla A. O. Schelpe
In order to satisfy limits on the allowed variation of particle masses from big bang nucleosynthesis (BBN) until today, the chameleon scalar field is required to reach its attracto…
The Chameleonic Contribution to the SZ Radial Profile of the Coma Cluster
Anne-Christine Davis, Camilla A. O. Schelpe, Douglas J. Shaw
We constrain the chameleonic Sunyaev--Zel'dovich (CSZ) effect in the Coma cluster from measurements of the Coma radial profile presented in the WMAP 7-year results. The CSZ effect…
Chameleon-Photon Mixing in a Primordial Magnetic Field
Camilla A. O. Schelpe
We consider the non-resonant mixing between photons and scalar ALPs with masses much less than the plasma frequency along the path, with specific reference to the chameleon scalar…
The Effect of a Chameleon Scalar Field on the Cosmic Microwave Background
Anne-Christine Davis, Camilla A. O. Schelpe, Douglas J. Shaw
We show that a direct coupling between a chameleon-like scalar field and photons can give rise to a modified Sunyaev-Zel'dovich (SZ) effect in the Cosmic Microwave Background (CMB)…