J
J. Grygorczuk
Researcher at Polish Academy of Sciences
Publications - 18
Citations - 356
J. Grygorczuk is an academic researcher from Polish Academy of Sciences. The author has contributed to research in topics: Comet & Emissivity. The author has an hindex of 9, co-authored 18 publications receiving 317 citations.
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Journal ArticleDOI
Thermal and mechanical properties of the near-surface layers of comet 67P/Churyumov-Gerasimenko
Tilman Spohn,Jörg Knollenberg,A. Ball,Marek Banaszkiewicz,Johannes Benkhoff,Matthias Grott,J. Grygorczuk,C. Hüttig,Axel Hagermann,G. Kargl,Erika Kaufmann,Norbert I. Kömle,Ekkehard Kührt,Konrad J. Kossacki,Wojciech Marczewski,Ivanka Pelivan,R. Schrödter,Karsten Seiferlin +17 more
TL;DR: Using data from the MUPUS instrument package gathered at the Philae landing site Abydos on comet 67P/Churyumov-Gerasimenko, the diurnal temperature to vary between 90 and 130 K and a sintered near-surface microporous dust-ice layer with a porosity of 30 to 65% is consistent with the data.
Journal Article
MUPUS insertion device for the Rosetta mission
TL;DR: An original mechanical device designed to insert a penetrator into a cometary nucleus in an almost gravity-free environment is described in this article, which comprises a hammer and a power supply system that stores electrical energy in a capacitor.
Journal ArticleDOI
LunarEX-a proposal to cosmic vision
Alan Smith,Ian A. Crawford,R. A. Gowen,Andrew J. Ball,Simeon Barber,Philip Church,Andrew J. Coates,Yang Gao,Andrew David Griffiths,Axel Hagermann,Katherine H. Joy,Andy Phipps,William T. Pike,RF Scott,Simon Sheridan,Martin Sweeting,D. L. Talboys,Vincent C. H. Tong,N. Wells,Jens Biele,Julian Chela-Flores,B. Dabrowski,J. Flannagan,Manuel Grande,J. Grygorczuk,G. Kargl,O. B. Khavroshkin,G. Klingelhoefer,Martin Knapmeyer,Wojciech Marczewski,S. M. P. McKenna-Lawlor,L. Richter,David A. Rothery,Karol Seweryn,S. Ulamec,Roman Wawrzaszek,Mark A. Wieczorek,Ian Wright,Mark R. Sims +38 more
TL;DR: The recent plethora of lunar missions (flown or proposed) reflects a resurgence in interest in the Moon, not only in its own right, but also as a record of the early solar system including the formation of the Earth.
Journal ArticleDOI
Determining the geotechnical properties of planetary regolith using Low Velocity Penetrometers
Karol Seweryn,K. Skocki,Marek Banaszkiewicz,J. Grygorczuk,M. Kolano,T. Kuciński,J. Mazurek,Marek Morawski,A. Białek,Hans Rickman,Roman Wawrzaszek +10 more
TL;DR: In this article, a comparison between DCP and LVP operation was observed during several tests campaigns during the mole KRET and CHOMIK instrument development, in different planetary analogues: JSC-1A, Chenobi and AGK-2010, Phobos analogue, cometary analogues F1, F2 and F3 (SRC) and dry quartz sand.
Journal ArticleDOI
Lunar Net—a proposal in response to an ESA M3 call in 2010 for a medium sized mission
Alan Smith,Ian A. Crawford,R. A. Gowen,Richard M. Ambrosi,Mahesh Anand,Bruce Banerdt,Nigel Bannister,Neil Bowles,C. Braithwaite,Patrick Brown,Julian Chela-Flores,T. Cholinser,Philip Church,Andrew J. Coates,T. Colaprete,Gareth S. Collins,Gareth S. Collins,Glyn Collinson,T. Cook,Richard C. Elphic,G.W. Fraser,Yang Gao,E. K. Gibson,Timothy D. Glotch,Manuel Grande,Andrew David Griffiths,J. Grygorczuk,Murthy S. Gudipati,Axel Hagermann,J. Heldmann,Lon L. Hood,Adrian P. Jones,Katherine H. Joy,O. B. Khavroshkin,G. Klingelhoefer,Martin Knapmeyer,Georgiana Y. Kramer,David J. Lawrence,Wojciech Marczewski,S. M. P. McKenna-Lawlor,Katarina Miljković,Shyama Narendranath,Ernesto Palomba,Andy Phipps,William T. Pike,D. Pullan,J. Rask,D. T. Richard,Karol Seweryn,Simon Sheridan,Mark R. Sims,Martin Sweeting,Timothy D. Swindle,D. L. Talboys,Lawrence A. Taylor,Nicholas A Teanby,V. Tong,S. Ulamec,Roman Wawrzaszek,Mark A. Wieczorek,Lionel Wilson,Ian Wright +61 more
TL;DR: LunarNet as discussed by the authors is an evolution of the 2007 LunarEX proposal to ESA (European Space Agency) which draws on recent significant advances in mission definition and feasibility, and the successful Pendine full-scale impact trials have proved impact survivability for many of the key technology items, and a penetrator system study has greatly improved the definition of descent systems, detailed penetrator designs and required resources.