Boattini, A.; D'Abramo, G.; Scholl, G.; Hainaut, H.; Boehnhardt, H.; West, R.; Carpino, M.; Hahn, G.; Michelsen, R.; Forti, G.et al.; Pravec, P.; Valsecchi, G. P.; Asher, D. J.: Near-Earth asteroid search and follow-up beyond the 22nd magnitude: A pilot program with ESO telescopes. Astronomy and Astrophysics 418, pp. 743 - 750 (2004)
de Bergh, C.; Boehnhardt, H.; Barucci, A.; Lazzarin, A.; Fornasier, S.; Romon-Martin, J.; Tozzi, G. P.; Doressoundiram, A.; Dotto, E.: Aqueous altered silicates at the surface of two Plutinos? Astronomy and Astrophysics 416, pp. 791 - 798 (2004)
Delsanti, A.; Hainaut, O.; Jourddeuil, E.; Meech, K. J.; Boehnhardt, H.; Barrera, L.: Simultaneous visible and near-IR photometric study of Kuiper Belt Object surfaces with the ESO Very Large Telescopes. Astronomy and Astrophysics 417, pp. 1145 - 1158 (2004)
Fornasier, S.; Doressoundiram, A.; Tozzi, G. P.; Barucci, A.; Boehnhardt, H.; de Bergh, C.; Delsanti, A.; Davies, J.; Dotto, E.: ESO Large Program on physical studies of Transneptunian Objects and Centaurs: Final results of the visible spectrophotometric observations. Astronomy and Astrophysics 421, pp. 353 - 363 (2004)
Lara, L. M.; Rodrigo, R.; Tozzi, G. P.; Boehnhardt, H.; Leisy, P.: The spectrum of Comet C/1999 H1 (Lee) between 0.6 and 1 micron. Astronomy and Astrophysics 420, pp. 371 - 382 (2004)
Lara, L. M.; Tozzi, G. P.; Boehnhardt, H.; D'Martino, M.; Schulz, R.: Gas and Dust in Comet C/2000 WM1 during its closest approach to Earth: Optical imaging and long-slit spectroscopy. Astronomy and Astrophysics 422, pp. 717 - 729 (2004)
Schulz, R.; Stüwe, J. A.; Boehnhardt, H.: Rosetta target Comet 67P/Churyumov-Gerasimenko: Post-perihelion gas and dust production rates. Astronomy and Astrophysics 422 (1), pp. L19 - L21 (2004)
Schütz, O.; Boehnhardt, H.; Pantin, E.; Sterzik, M.; Els, S.; Hahn, J.; Henning, T.: A search for circumstellar dust disks with ADONIS. Astronomy and Astrophysics 424, pp. 613 - 618 (2004)
Tozzi, G. P.; Lara, L. M.; Kolokolova, L.; Boehnhardt, H.; Licandro, J.; Schulz, R.: Sublimating components in the coma of Comet C/2000 WM1 (LINEAR). Astronomy and Astrophysics 424, pp. 325 - 330 (2004)
Schulz, R.; Alexander, C.; Boehnhardt, H.; Glassmeier, K.-H. (Eds.): Rosetta-ESA's Mission to the Origin of the Solar System. Springer Press, Heidelberg (2009)
Barucci, M. A.; Boehnhardt, H.; Cruikshank, D. P.; Morbidelli, A. (Eds.): The Solar System Beyond Neptune. University of Arizona Press, Tucson, USA (2008)
Boehnhardt, H.: Die Planeten und ihre Monde. In: Abriss der Astronomie, pp. 104 - 128 (Eds. Röser, H.-J.; Tscharnuter, W.). Wiley-VCH Verlag, Berlin (2012)
The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior.
The Uranian magnetic field is more expansive than previously thought, according to newly analyzed data from Voyager 2, making it easier to search for moons with oceans.
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).