Signatures of Granulation in the Spectra of K-Dwarfs
Very high resolution (R>150,000) spectra of a small sample of nearby K-dwarfs have been acquired to measure the line asymmetries and central wavelength shifts caused by convective motions present in stellar photospheres. This phenomenon of granulation is modeled by 3D hydrodynamical simulations but they need to be confronted with accurate
Ramírez, I. et al.
Advertised on:
8
2008