All Figures

	Figure 1: Horizontal and vertical cross section of the imaginary part of a Rytov wave path in a homogeneous medium. The reference velocity is 20 km s-1 and the period is 5 min. Light areas corresponds to positive sensitivity and dark areas to negative sensitivity
Open with DEXTER


In the text

	Figure 2: Cross sections along and perpendicular to the ray path of single frequency sensitivity kernel obtained from ray based Green's functions for a frequency of 3.2 mHz. The kernels are normalized by c02. The solid line in the upper panel shows the ray path.
Open with DEXTER


In the text

	Figure 3: Cross sections along and perpendicular to the ray path of sensitivity kernel obtained from ray based Green's functions for a Gaussian frequency profile (see text). The kernels are normalized by c02. The solid line in the upper panel shows the ray path.
Open with DEXTER


In the text

	Figure 4: Sensitivity variation with depth across the ray path at a distance of 3 Mm (top) and 20 Mm (bottom) from the source. Shown are (solid), (dashed) and (dotted). The kernels are normalized by c0.
Open with DEXTER


In the text

Figure 5: Comparison of 1D sensitivity kernels for an offset of 10 heliospheric degrees. Shown are a frequency-integrated sensitivity kernel (solid) and a ray-approximation kernel (dashed) both obtained in a planar geometry and without inclusion of the acoustic cut-off frequency These are shown together with a sensitivity kernel obtained from global-mode summation (dash-dotted) and a ray-approximation kernel (dotted), both from a spherical geometry with inclusion of the acoustic cut-off frequency. To the right is shown a close up of the kernels near the surface.

Open with DEXTER


In the text