HAO 2012 Profiles In Science: Dr. Michael Knölker
Contact:
303-497-1501
knoe@ucar.edu
Dr. Michael Knölker received a physics degree from the University of Göttingen (Germany) and received a PhD in physics from the University of Freiburg (Germany). He joined the staff of the University of Göttingen as an assistant professor and later received an appointment as a senior astronomer at the Kiepenheuer-Institut fùr Sonnenphysik in Freiburg, Germany.
He spent a year at the High Altitude Observatory (HAO) as a visiting scientist, and later, as an affiliate scientist. Dr. Knölker received a senior scientist appointment in 1995 and served as director of HAO from 1995 to 2009. He continues his tenure at HAO as a senior scientist.
Dr. Knölker's major research interests and activities include the structure and dynamics of the intermittent magnetic field in the solar atmosphere, radiative transfer, and the structure and evolution of the Sun with its variable radiative output. He has also maintained an active interest in solar and stellar seismology.
Over the last decade Dr. Knölker has become increasingly interested and devoted to the design, construction, and science that can be delivered from high-altitude long-duration ballooning. The culmination of that effort was the Sunrise science balloon (http://www.mps.mpg.de/en/projekte/sunrise/) which floated, carrying a 1m solar telescope, in the summer of 2009. Sunrise caught the Sun in the depths of an unusually "deep" solar minimum and provided some of the highest resolution images of the Sun ever taken. NASA very recently funded Sunrise for a second flight that will occur in the summer of 2013. HAO's scientists and engineers are working to meet the scheduled delivery and are excited about what can be learned about the magnetism of the Sun around the peak of its activity cycle.
Puplications
(1) Guglielmino, S.L., Martínez Pillet, V., Bonet, J.A., Carlos del Toro Iniesta, J., Bellot Rubio, L.R., Solanki, S.K., Schmidt, W., Gandorfer, A., Barthol, P., Knoelker, M., 2012: The frontier between small-scale bipoles and ephemeral regions in the solar photosphere: Emergence and decay of an intermediate-scale bipole observed with Sunrise/IMaX, The Astrophysical Journal, 745(A), 160–172 doi:10.1088/0004-637X/745/2/160.
(2) Palacios, J., Blanco Rodriguez, J., Vargas Dominguez, S., Domingo, V., Martinez Pillet, V., Bonet, J.A., Bellot Rubio, L.R., del Toro Iniesta, J.C., Solanki, S.K., Barthol, P., Gandorfer, A., Berkefeld, T., Schmidt, W., Knoelker, M., 2012: Magnetic field emergence in mesogranular-sized exploding granules observed with sunrise/IMaX data, Astronomy and Astrophysics, 537, A21, doi:10.1051/0004-6361/201117936.