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We investigate the magnetic dipole decays $V\to P\gamma$ of variousheavy-flavored mesons such as $(D,D^*,D_s,D^{*}_s,\eta_c, J/\psi)$ and$(B,B^*,B_s,B^*_s,\eta_b,\Upsilon)$ using the light-front quark modelconstrained by the variational principle for the QCD-motivated effectiveHamiltonian. The momentum dependent form factors $F_{VP}(q^2)$ for $V\toP\gamma^*$ decays are obtained in the $q^+=0$ frame and then analyticallycontinued to the timelike region by changing ${\bf q}_\perp$ to $i{\bfq}_\perp$ in the form factors. The coupling constant $g_{VP\gamma}$ for realphoton case is then obtained in the limit as $q^2\to 0$, i.e.$g_{VP\gamma}=F_{VP}(q^2=0)$. The weak decay constants of heavy pseudoscalarand vector mesons are also calculated. Our numerical results for the decayconstants and radiative decay widths for the heavy-flavored mesons are overallin good agreement with the available experimental data as well as othertheoretical model calculations.Comment: 9 pages, 3figures, added few more references, typos correcte

Decay constants and radiative decays of heavy mesons in light-front quark model