Feldman, U.; Dammasch, I. E.; Landi, E.; Doschek, G. A.: Observations indicating that ≈ 1 × 107 K solar flare plasmas may be produced in situ from ≈ 1 × 106 K coronal plasma. Astrophysical Journal 609, pp. 439 - 451 (2004)
Dammasch, I. E.; Stellmacher, G.; Wiehr, E.: Spectroscopy of solar prominences from space and ground. Astron. Nachrichten 324 (4), pp. 338 - 339 (2003)
Feldman, U.; Landi, E.; Doschek, G. A.; Dammasch, I. E.; Curdt, W.: Free-free emission in the far-ultraviolet spectral range: A resource for diagnosing solar and stellar flare plasmas. Astrophysical Journal 593, pp. 1226 - 1241 (2003)
Stellmacher, G.; Wiehr, E.; Dammasch, I. E.: Spectroscopy of solar prominences simultaneously from space and ground. Solar Physics 217, pp. 133 - 155 (2003)
Dammasch, I. E.; Wilhelm, K.: SUMER observations of solar transition region structures and dynamics. Advances in Space Research 30 (3), pp. 495 - 500 (2002)
Kliem, B.; Dammasch, I. E.; Curdt, W.; Wilhelm, K.: Correlated dynamics of hot and cool plasmas in the main phase of a solar flare. Astrophysical Journal 568, pp. L61 - L65 (2002)
Wilhelm, K.; Dammasch, I. E.; Hassler, D. M.: Transition region and coronal plamas: Instrumentation and spectral analysis. Astrophysics and Space Science 282, pp. 189 - 207 (2002)
Wilhelm, K.; Dammasch, I. E.; Xia, L.: Observations of ultraviolet emission lines in solar coronal holes on the disk with SUMER on SOHO. Advances in Space Research 30 (3), pp. 517 - 522 (2002)
Feldman, U.; Dammasch, I. E.; Wilhelm, K.: On the unresolved fine structure of the solar atmosphere. IV. The interface with the chromosphere. Astrophysical Journal 558, pp. 423 - 427 (2001)
Moran, T.; Gopalswamy, N.; Dammasch, I. E.; Wilhelm, K.: A multi-wavelength study of solar coronal-hole regions showing radio enhancements. Astronomy and Astrophysics 378, pp. 1037 - 1045 (2001)
Feldman, U.; Dammasch, I. E.; Wilhelm, K.: The morphology of the solar upper atmosphere during the sunspot minimum. Space Science Reviews 93, pp. 411 - 472 (2000)
Wilhelm, K.; Dammasch, I. E.; Marsch, E.; Hassler, D. M.: On the source regions of the fast solar wind in polar coronal holes. Astronomy and Astrophysics 353, pp. 749 - 756 (2000)
Wilhelm, K.; Lemaire, P.; Dammasch, I. E.; Hollandt, J.; Schühle, U.; Curdt, W.; Kucera, T.; Hassler, D. M.; Huber, M. C. E.: Solar irradiances of ultraviolet emission lines measured during the minimum of sunspot activity in 1996 and 1997. Physics and Chemistry of the Earth C, 25, pp. 389 - 392 (2000)
Wilhelm, K.; Schühle, U.; Curdt, W.; Dammasch, I. E.; Hollandt, J.; Lemaire, P.; Huber, M. C. E.: Solar spectroradiometry with the telescope and spectrograph SUMER on the Solar and Heliospheric Observatory SOHO. Metrologia 37, pp. 393 - 398 (2000)
Dammasch, I. E.; Hassler, D. M.; Curdt, W.; Wilhelm, K.: Statistical Analysis of EUV Lines Inside and Outside of Solar Coronal Holes. Space Science Reviews 87, pp. 161 - 164 (1999)
Dammasch, I. E.; Wilhelm, K.; Curdt, W.; Hassler, D. M.: The Ne VIII (λ770) resonance line: Solar wavelengths determined by SUMER on SOHO. Astronomy and Astrophysics 346, pp. 285 - 294 (1999)
Analyzing the high spatial resolution solar Ca II H and K emission data obtained by the SUNRISE mission and building a model of other stars more active than the Sun
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).
The magnetic field in the solar atmosphere exceeds the geomagnetic field strength by four orders of magnitude. It greatly influences the processes of energy transport within the solar atmosphere, and dominates the morphology of the solar chromosphere and corona. Kinetic energy from convective motions in the Sun can be efficiently stored in magnetic fields and subsequently released - to heat the solar corona to several million degrees or to blast off coronal mass ejections.