Further consistency tests of the stability of fundamental couplings

Understand

In a recent publication [Ferreira {\it et al.}, Phys.

• Rev.
• D89 (2014) 083011] we tested the consistency of current astrophysical tests of the stability of the fine-structure constant $\alpha$ and the proton-to-electron mass ratio $\mu=m_p/m_e$ (mostly obtained in the optical/ultraviolet) with combined measurements of $\alpha$, $\mu$ and the proton gyromagnetic ratio $g_p$ (mostly in the radio band).
• Given the significant observational progress made in the past year, we now revisit and update this analysis.