J. Knollenberg

Publication List Details

Period

1995 - 9999

Number

35

Co-Authors

Asymmetric Synthesis of Unusual Amino Acids Designed for Topographical Control of Peptide Confirmation, (9999)

Russell, K. C., Kazmierski, W. M., Nicolas, E., Ferguson, R. D., Knollenberg, J.

This Article is from 'Peptides, Chemistry and Biology: Proceedings of the American Peptide Symposium (12th) Held in Cambridge, Massachusetts on 16-21 June 1991', AD-A256 113, p768-770.

Triple F—a comet nucleus sample return mission (2009)

Küppers, Michael, Keller, H. U., Kührt, E., A’Hearn, M. F., Altwegg, K., Bertrand, R., ...

The Triple F (Fresh From the Fridge) mission, a Comet Nucleus Sample Return, has been proposed to ESA’s Cosmic Vision program. A sample return from a comet enables us to reach the ultimate goal of...

Triple F - A Comet Nucleus Sample Return Mission (2008)

Küppers, Michael, Keller, Horst Uwe, Kührt, Ekkehard, A'Hearn, Michael, Altwegg, Kathrin, Bertrand, R., ...

The Triple F (Fresh From the Fridge) mission, a Comet Nucleus Sample Return, has been proposed to ESA’s Cosmic Vision program. A sample return from a comet enables us to reach the ultimate goal of...

Observations of Comet 9P/Tempel 1 around the Deep Impact event by the OSIRIS cameras onboard Rosetta (2007)

Keller, H.U., Küppers, M., Fornasier, S., Gutierrez, P. J., Hviid, S. F., Jorda, L., ...

The OSIRIS cameras on the Rosetta spacecraft observed comet 9P/Tempel 1 from 5 days before to 10 days after it was hit by the Deep Impact projectile. The Narrow Angle Camera (NAC) monitored the...

MUPUS – a Thermal and Mechanical Properties Probe for the Rosetta Lander Philae (2007)

Spohn, T., Seiferlin, K., Hagermann, A., Knollenberg, J., Ball, A.J., Banaszkiewicz, M., ...

MUPUS, the multi purpose sensor package onboard the Rosetta lander Philae, will measure the energy balance and the physical parameters in the near-surface layers – up to about 30 cm depth- of the...

Instrumented Moles for Planetary Subsurface Regolith Studies (2006)

Richter, L.O., Coste, P.A., Grzesik, A., Knollenberg, J., Magnani, P., Nadalini, R., ...

Soil-like materials, or regolith, on solar system objects provide a record of physical and/or chemical weathering processes on the object in question and as such possess significant scientific...

Deep Impact - Strength of the Comet (2005)

Kührt, E., Knollenberg, J., De Niem, D.

It seems very difficult to derive strength (and density) from the Deep Impact measurements because the gas drag may change the commonly used ballistic ejecta physics. Strength as low as 65 Pa...

A large dust/ice ratio in the nucleus of comet 9P/Tempel 1 (2005)

Küppers, M., Bertini, I., Fornasier, S., Gutierrez, P. J., Hviid, S. F., Jorda, L., ...

Comets spend most of their life in a low-temperature environment far from the Sun. They are therefore relatively unprocessed and maintain information about the formation conditions of the planetary...

Deep Impact Observations by OSIRIS Onboard the Rosetta Spacecraft (2005)

Keller, H.U, Jorda, L., Küppers, M., Gutierrez, P. J., Hviid, S. F., Knollenberg, J., ...

The OSIRIS cameras (optical, spectroscopic, and infrared remote imaging system) onboard the European Space Agency's Rosetta spacecraft observed comet 9P/Tempel 1 for 17 days continuously around the...

Prelaunch performance evaluation of the cometary experiment MUPUS-TP (2004)

Marczewski, W., Schroer, K., Seiferlin, K., Usowicz, B., Banaszkiewicz, M., Hlond, M., ...

This paper discusses test results obtained in both laboratory and terrestrial environment conditions for the “Multipurpose Sensors for Surface and Sub-Surface Science” Thermal Probe (MUPUS-TP),...

Optical Observations of Comet 67P/Churyumov-Gerasimenko (2004)

Weiler, M., Rauer, H., Knollenberg, J., Helbert, J.

From optical longsplit spectra of comet 67P(Churyumov-Gerasimenko, obtained in February 1996, a CN production rate of (1.4 ± 0.4)· 10_25 l/sec was determined. From the continuum flux in the spectra...

Prelaunch performance evaluation of the cometary experiment MUPUS-TP (2004)

Marczewski, W., Schröer, K., Seiferlein, K., Usowicz, B., Banaszkiewicz, M., Hlond, M., ...

This paper discusses test results obtained in both laboratory and terrestrial environment conditions for the "Multipurpose Sensors for Surface and Sub-Surface Science'' Thermal Probe (MUPUS-TP),...

The dust activity of comet C/1995 O1 (Hale-Bopp) between 3 AU and 13 AU from the Sun (2003)

Weiler, M., Rauer, H., Knollenberg, J., Jorda, L., Helbert, J.

The active comet C/1995 O1 (Hale-Bopp) was target of an optical long-term monitoring program carried out at the European Southern Observatory (ESO) (Rauer et al. 1997, 2003). Longslit spectra and...

Large dust particles around cometary nuclei (1997)

Knollenberg, J., Kuehrt, E.

The dynamics of large dust partcles in the vicinity of rotating cometary nuclei is investigated using a computational model which includes effects of gas drag, nucleus gravity and inertia forces as...

Physical risks of landing on a cometary nucleus (1997)

Kuehrt, E., Knollenberg, J.

Comets originate from the outer solar system where the density and temperature of the planetary nebula were rather low. They form a distinct class of small solar system bodies and their physical...