Dr. Narayanan has written two books and numerous research papers. His research interests include solar magnetohydrodynamics (MHD), waves, and oscillations. Now retired, Swapan K. Saha was a professor at the Indian Institute of Astrophysics. Dr. Saha has written numerous research papers and several books, including High Resolution Imaging: Detectors and Applications. His research interests include observational astronomy, high-resolution imaging, aperture synthesis, adaptive optics, atmospheric science, and image processing.