Open AccessGravity waves in the Sun
Author(s) -
Rogers Tamara M.,
Glatzmaier Gary A.
Publication year - 2005
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2005.09659.x
Subject(s) - physics , gravity wave , convection , radiation zone , radiative transfer , convection zone , dispersion relation , energy flux , mechanics , gravitational wave , dispersion (optics) , geophysics , computational physics , classical mechanics , astrophysics , optics , astronomy
We present numerical simulations of penetrative convection and gravity wave excitation in the Sun. Gravity waves are self‐consistently generated by a convective zone overlying a radiative interior. We produce power spectra for gravity waves in the radiative region as well as estimates for the energy flux of gravity waves below the convection zone. We calculate a peak energy flux in waves below the convection zone to be three orders of magnitude smaller than previous estimates for m = 1 . The simulations show that the linear dispersion relation is a good approximation only deep below the convective–radiative boundary. Both low‐frequency propagating gravity waves as well as higher frequency standing modes are generated although we find that convection does not continually drive the standing g‐mode frequencies.