45 citations · 65 across the 2 of their papers we have counts for
2 papers
astro-ph.SR2010★ 20 cited
Local helioseismic and spectroscopic analyses of interactions between acoustic waves and a sunspot
S. P. Rajaguru, R. Wachter, K. Sankarasubramanian +1
Using a high cadence imaging spectropolarimetric observation of a sunspot and its surroundings in magnetically sensitive (FeI 6173 A) and insensitive (FeI 7090 A) upper photospheri…
astro-ph2006★ 45 cited
Radiative transfer effects on Doppler measurements as sources of surface effects in sunspot seismology
S. P. Rajaguru, K. Sankarasubramanian, R. Wachter +1
We show that the use of Doppler shifts of Zeeman sensitive spectral lines to observe wavesn in sunspots is subject to measurement specific phase shifts arising from, (i) altered he…