45 citations · 52 across the 2 of their papers we have counts for
2 papers
astro-ph2008★ 7 cited
On the Weakening of Chromospheric Magnetic Field in Active Regions
K. Nagaraju, K. Sankarasubramanian, K. E. Rangarajan
Simultaneous measurement of line-of-sight (LOS) magnetic and velocity fields at the photosphere and chromosphere are presented. Fe I line at and at $\lambda6563…
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…