Tiwari, S. K.; van Noort, M.; Solanki, S. K.; Lagg, A.: Depth-dependent global properties of a sunspot observed by Hinode using the Solar Optical Telescope/Spectropolarimeter. Astronomy and Astrophysics 583, A119 (2015)
Thalmann, J. K.; Tiwari, S. K.; Wiegelmann, T.: Force-free Field Modeling of Twist and Braiding-induced Magnetic Energy in an Active-region Corona. Astrophysical Journal 780 (1), 102 (2014)
Thalmann, J. K.; Tiwari, S. K.; Wiegelmann, T.: Comparison of force-free coronal magnetic field modeling using vector fields from Hinode and Solar Dynamics Observatory. Astrophysical Journal 769, pp. 59 - 68 (2013)
Tiwari, S. K.: Erratum ``On the Force-Free Nature of Photospheric Sunspot Magnetic Fields as Observed from Hinode (SOT/SP)'' (vol 744, pg 65, 2012). Astrophysical Journal 759 (2), 148 (2012)
Joshi, B.; Veronig, A. M.; Lee, J.; Bong, S.-C.; Tiwari, S. K.; Cho, K.-S.: Pre-Flare Activity and Magnetic Reconnection during the Evolutionary Stages of Energy Release in a Solar Eruptive Flare. Astrophysical Journal 743 (2), 195 (2011)
Kumar, B.; Venkatakrishnan, P.; Mathur, S.; Tiwari, S. K.; Garcia, R. A.: On the Flare-Induced Seismicity in the Active Region Noaa 10930 and Related Enhancement of Global Waves in the Sun. Astrophysical Journal 743 (1), 29 (2011)
Ravindra, B.; Venkatakrishnan, P.; Tiwari, S. K.; Bhattacharyya, R.: Evolution of Currents of Opposite Signs in the Flare-productive Solar Active Region NOAA 10930. Astrophysical Journal 740, 19 (2011)
The Planetary Plasma Environments group (PPE) has a strong heritage in the exploration of planetary magnetospheres and space plasma interactions throughout the solar system. It has contributed instruments to several past missions that flew-by or orbited Jupiter (Galileo, Cassini, Ulysses). The PPE participates in the JUICE mission by contributing hardware and scientific expertise to the Particle Environment Package (PEP).
Application deadline 1 October 2024. PhD projects in planetary science, solar and stellar physics, solar magnetism, heliophysics, helioseismology, asteroseismology, ...
First Light for Sunrise III: the first tests with real sunlight were successful. The balloon-borne solar observatory should be ready for launch at the end of May.
In analyzing solar observations from the 19th century, scientists are turning to amateur researchers for help. The project will allow to better understand the history of our star.