I present an analytic model for the early post-collapse evolution of a spherical density peak on coherence scale initial fluctuations in universe filled with collisionless and pressure-free "dust". On time-scale which is short compared to peak's collapse time $t_0$, its inner regions settle into equilibrium cusp power-law profile, $\rho\propto r^{-12/7}$. Within this cusp, circular orbit period...

We report on a sub-percent scale determination using the omega baryon mass and gradient-flow methods. The calculations are performed 22 ensembles of $N_f=2+1+1$ highly improved, rooted staggered sea-quark configurations generated by MILC CalLat Collaborations. valence quark action used is M\"obius Domain-Wall fermions solved these after smearing applied with flowtime $t_{\rm gf}=1$ in lattice u...

A body $\Theta$ containing two phases, which may form a periodic composite with microstructure much smaller that the body, or have structure on length scale comparable to is subjected slowly time varying boundary conditions would produce an approximate uniform field in were it filled homogeneous material. Here means wavelengths and attenuation lengths of waves at frequencies associated variatio...

A new component was reported in the X-ray counterpart to binary neutron-star merger and gravitational wave event GW170817, exceeding afterglow emission from an off-axis structured jet. The kilonova/macronova ejecta may explain excess but exceeds radio observations if spectrum is same. We propose a fallback accretion model that part of neutron star falls back forms disk around central compact ob...