269 citations · 3.2k across the 55 of their papers we have counts for
4 papers · 1 filter
Investigating the properties of granulation in the red giants observed by Kepler
S. Mathur, S. Hekker, R. Trampedach +18
More than 1000 red giants have been observed by NASA/Kepler mission during a nearly continuous period of ~ 13 months. The resulting high-frequency resolution (< 0.03 muHz) allows u…
Granulation in Red Giants: observations by the Kepler mission and 3D convection simulations
S. Mathur, S. Hekker, R. Trampedach +18
The granulation pattern that we observe on the surface of the Sun is due to hot plasma from the interior rising to the photosphere where it cools down, and descends back into the i…
The Mass Mixing Length in Convective Stellar Envelopes
Regner Trampedach, Robert F. Stein
The scale length over which convection mixes mass in a star can be calculated as the inverse of the vertical derivative of the unidirectional (up or down) mass flux. This is relate…
Three-dimensional surface convection simulations of metal-poor stars -- The effect of scattering on the photospheric temperature stratification
R. Collet, W. Hayek, M. Asplund +3
Three-dimensional (3D) radiative hydrodynamic model atmospheres of metal-poor late-type stars are characterized by cooler upper photospheric layers than their 1D counterparts. This…