Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Uwe Keller"'
Autor:
Xian Shi, Xuanyu Hu, Jessica Agarwal, Carsten Güttler, Martin Rose, Horst Uwe Keller, Marco Fulle, Jakob Deller, Holger Sierks
Publikováno v:
The Astrophysical Journal Letters, Vol 961, Iss 1, p L16 (2024)
Ejection of large boulder-like debris is a vigorous form of cometary activity that is unlikely induced by water ice out-gassing alone but rather associated with the sublimation of super-volatile ices. Though perceived on several comets, the actual pa
Externí odkaz:
https://doaj.org/article/d4111af037fd4c16854498d6f64d057b
Autor:
Björn J R Davidsson, F Peter Schloerb, Sonia Fornasier, Nilda Oklay, Pedro J Gutiérrez, Bonnie J Buratti, Artur B Chmielewski, Samuel Gulkis, Mark D Hofstadter, H Uwe Keller, Holger Sierks, Carsten Güttler, Michael Küppers, Hans Rickman, Mathieu Choukroun, Seungwon Lee, Emmanuel Lellouch, Anthony Lethuillier, Vania Da Deppo, Olivier Groussin, Ekkehard Kührt, Nicolas Thomas, Cecilia Tubiana, M Ramy El-Maarry, Fiorangela La Forgia, Stefano Mottola, Maurizio Pajola
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2022, ⟨10.1093/mnras/stac2560⟩
Monthly Notices of the Royal Astronomical Society, 2022, ⟨10.1093/mnras/stac2560⟩
Full list of authors: Davidsson, Bjorn J. R.; Schloerb, F. Peter; Fornasier, Sonia; Oklay, Nilda; Gutierrez, Pedro J.; Buratti, Bonnie J.; Chmielewski, Artur B.; Gulkis, Samuel; Hofstadter, Mark D.; Keller, H. Uwe; Sierks, Holger; Guettler, Carsten;
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d369803f81f090a8f340037c9533176
http://arxiv.org/abs/2210.08134
http://arxiv.org/abs/2210.08134
Autor:
A’Hearn, Michael F., Feaga, Lori M., Bertaux, Jean-Loup, Feldman, Paul D., Parker, Joel Wm., Slater, David C., Steffl, Andrew J., Alan Stern, S., Throop, Henry, Versteeg, Maarten, Weaver, Harold A., Uwe Keller, H.
Publikováno v:
In Planetary and Space Science 2010 58(9):1088-1096
Autor:
Horst Uwe Keller, S. S. Krasilnikov, Stubbe F. Hviid, Urs Mall, Yuri V. Skorov, Alexander T. Basilevsky
Publikováno v:
Solar System Research. 52:505-517
orphologic analysis of the fragments (500 × 500 pixels) of images of comet 67P/Churyumov−Gerasimenko obtained with the OSIRIS camera for 18 regions, where the consolidated material is exposed on the surface, has been carried out. In terms of resol
Autor:
Olivier Groussin, Uwe Keller, Riccardo Lasagni Manghi, Matthew Taylor, Michael Küppers, Marco Zannoni, Laurent Jorda, Paolo Tortora, Stefano Mottola, P. Martin, Laurence O'Rourke, Frank Budnik, Nicolas Thomas
Following its arrival at comet 67P/Churyumov-Gerasimenko in August 2014, the Rosetta spacecraft successfully navigated in its proximity for two years, using a combination of Earth-based astrometric and radiometric tracking data as well as space-based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14b920a7718516f08935fa6ebf1f3705
https://doi.org/10.5194/egusphere-egu2020-19173
https://doi.org/10.5194/egusphere-egu2020-19173
Autor:
Horst Uwe Keller, Rosita Kokotanekova, David Marshall, Laurent Jorda, Nicholas Attree, Stefano Mottola, Yuri V. Skorov
Publikováno v:
Space Science Reviews
Space Science Reviews, 2020, 216 (1), ⟨10.1007/s11214-019-0627-5⟩
Space Science Reviews, Springer Verlag, 2020, 216 (1), ⟨10.1007/s11214-019-0627-5⟩
Space Science Reviews, 2020, 216 (1), ⟨10.1007/s11214-019-0627-5⟩
Space Science Reviews, Springer Verlag, 2020, 216 (1), ⟨10.1007/s11214-019-0627-5⟩
Nongravitational forces induced by sublimation of volatiles affect the rotational and orbital dynamics of comets. In addition to contributing to the improvement of ephemerides and of rotational models, nongravitational effects can help constrain the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86bc76369af9350013341707f45209a1
https://doi.org/10.1007/s11214-019-0627-5
https://doi.org/10.1007/s11214-019-0627-5
The observed rate of water production of comet 67P/Churyumov–Gerasimenko near its perihelion can be approximated by a very steep power function of the heliocentric distance. Widely used thermophysical models based on a static dust layer on top of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c78a2ee1b634c9d6d0d4ef58f4735c92
https://doi.org/10.1093/mnras/staa865
https://doi.org/10.1093/mnras/staa865
Autor:
Alexander T. Basilevsky, Urs Mall, Horst Uwe Keller, Stubbe F. Hviid, Yuri V. Skorov, S. S. Krasilnikov
Pinnacles are local topographic promontories of different shapes considered to be formed due to uneven surface erosion. In the case of comets, areal changes in the degree of erosion could be related to inhomogeneities of the nucleus. However, the amo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::634e262a17543938942df1ba402f7cbc
https://doi.org/10.1093/mnras/stz3093
https://doi.org/10.1093/mnras/stz3093
Autor:
M. A. Barucci, Eberhard Grün, Giampiero Naletto, Ivano Bertini, M. De Cecco, Pedro Hasselmann, S. Mottola, Wing-Huen Ip, Laurent Jorda, Bernhard Geiger, Xian Shi, Maurizio Pajola, Jouni Rynö, Gabriele Cremonese, Oliver Stenzel, J. J. Lopez Moreno, J. L. Bertaux, J. Kissel, S. Höfner, M. F. A'Hearn, Olivier Groussin, Martin Hilchenbach, B. Zaprudin, Steve Boudreault, V. Da Deppo, Alessandra Rotundi, Ludmilla Kolokolova, Dennis Bodewits, Philippe Lamy, Jessica Agarwal, Marc Hofmann, Paul D. Feldman, Horst Uwe Keller, Stefano Debei, Sihane Merouane, J. Wm. Parker, Monica Lazzarin, Stubbe F. Hviid, Michael Küppers, Stavro Ivanovski, Cesare Barbieri, Jean-Baptiste Vincent, Francesco Marzari, Detlef Koschny, Yves Langevin, Sonia Fornasier, N. Oklay, L. M. Lara, Jakob Deller, Zhong-Yi Lin, A. Koch, Andrew J. Steffl, R. Rodrigo, Björn Davidsson, J.-R. Kramm, Carsten Güttler, E. Kührt, Cecilia Tubiana, Klaus Hornung, P. J. Gutierrez, Stephen C. Lowry, Jörg Knollenberg, Holger Sierks, Henning Fischer, Marco Fulle, V. Della Corte, A. Gicquel, Harold A. Weaver, Nicolas Thomas, Lori M. Feaga
Publikováno v:
Agarwal, J.; Della Corte, V.; Feldman, P. D.; Geiger, B.; Merouane, S.; Bertini, I.; Bodewits, D.; Fornasier, S.; Grün, E.; Hasselmann, P.; Hilchenbach, M.; Höfner, S.; Ivanovski, S.; Kolokolova, L.; Pajola, M.; Rotundi, A.; Sierks, H.; Steffl, A. J.; Thomas, Nicolas; A'Hearn, M. F.; ... (2017). Evidence of sub-surface energy storage in comet 67P from the outburst of 2016 July 03. Monthly notices of the Royal Astronomical Society, 469(Suppl_2), s606-s625. Oxford University Press 10.1093/mnras/stx2386
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2017, 469 (Suppl_2), pp.s606-s625. ⟨10.1093/mnras/stx2386⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
Monthly notices of the Royal Astronomical Society
469 (2017): S606–S625. doi:10.1093/mnras/stx2386
info:cnr-pdr/source/autori:Agarwal, J.; Della Corte, V.; Feldman, P. D.; Geiger, B.; Merouane, S.; Bertini, I.; Bodewits, D.; Fornasier, S.; Grün, E.; Hasselmann, P.; Hilchenbach, M.; Höfner, S.; Ivanovski, S.; Kolokolova, L.; Pajola, M.; Rotundi, A.; Sierks, H.; Steffl, A. J.; Thomas, N.; A'Hearn, M. F.; Barbieri, C.; Barucci, M. A.; Bertaux, J. L.; Boudreault, S.; Cremonese, G.; Da Deppo, V.; Davidsson, B.; Debei, S.; De Cecco, M.; Deller, J. F.; Feaga, L. M.; Fischer, H.; Fulle, M.; Gicquel, A.; Groussin, O.; Güttler, C.; Gutiérrez, P. J.; Hofmann, M.; Hornung, K.; Hviid, S. F.; Ip, W. H.; Jorda, L.; Keller, H. U.; Kissel, J.; Knollenberg, J.; Koch, A.; Koschny, D.; Kramm, J. R.; Kührt, E.; Küppers, M.; Lamy, P. L.; Langevin, Y.; Lara, L. M.; Lazzarin, M.; Lin, Z. Y.; Lopez Moreno, J. J.; Lowry, S. C.; Marzari, F.; Mottola, S.; Naletto, G.; Oklay, N.; Wm. Parker, J.; Rodrigo, R.; Rynö, J.; Shi, X.; Stenzel, O.; Tubiana, C.; Vincent, J. B.; Weaver, H. A.; Zaprudin, B./titolo:Evidence of sub-surface energy storage in comet 67P from the outburst of 2016 July 03/doi:10.1093%2Fmnras%2Fstx2386/rivista:Monthly notices of the Royal Astronomical Society (Print)/anno:2017/pagina_da:S606/pagina_a:S625/intervallo_pagine:S606–S625/volume:469
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2017, 469 (Suppl_2), pp.s606-s625. ⟨10.1093/mnras/stx2386⟩
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2017, 469 (Suppl_2), pp.s606-s625. ⟨10.1093/mnras/stx2386⟩
Digital.CSIC. Repositorio Institucional del CSIC
instname
Monthly notices of the Royal Astronomical Society
469 (2017): S606–S625. doi:10.1093/mnras/stx2386
info:cnr-pdr/source/autori:Agarwal, J.; Della Corte, V.; Feldman, P. D.; Geiger, B.; Merouane, S.; Bertini, I.; Bodewits, D.; Fornasier, S.; Grün, E.; Hasselmann, P.; Hilchenbach, M.; Höfner, S.; Ivanovski, S.; Kolokolova, L.; Pajola, M.; Rotundi, A.; Sierks, H.; Steffl, A. J.; Thomas, N.; A'Hearn, M. F.; Barbieri, C.; Barucci, M. A.; Bertaux, J. L.; Boudreault, S.; Cremonese, G.; Da Deppo, V.; Davidsson, B.; Debei, S.; De Cecco, M.; Deller, J. F.; Feaga, L. M.; Fischer, H.; Fulle, M.; Gicquel, A.; Groussin, O.; Güttler, C.; Gutiérrez, P. J.; Hofmann, M.; Hornung, K.; Hviid, S. F.; Ip, W. H.; Jorda, L.; Keller, H. U.; Kissel, J.; Knollenberg, J.; Koch, A.; Koschny, D.; Kramm, J. R.; Kührt, E.; Küppers, M.; Lamy, P. L.; Langevin, Y.; Lara, L. M.; Lazzarin, M.; Lin, Z. Y.; Lopez Moreno, J. J.; Lowry, S. C.; Marzari, F.; Mottola, S.; Naletto, G.; Oklay, N.; Wm. Parker, J.; Rodrigo, R.; Rynö, J.; Shi, X.; Stenzel, O.; Tubiana, C.; Vincent, J. B.; Weaver, H. A.; Zaprudin, B./titolo:Evidence of sub-surface energy storage in comet 67P from the outburst of 2016 July 03/doi:10.1093%2Fmnras%2Fstx2386/rivista:Monthly notices of the Royal Astronomical Society (Print)/anno:2017/pagina_da:S606/pagina_a:S625/intervallo_pagine:S606–S625/volume:469
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2017, 469 (Suppl_2), pp.s606-s625. ⟨10.1093/mnras/stx2386⟩
On 2016 July 03, several instruments onboard ESA's Rosetta spacecraft detected signs of an outburst event on comet 67P, at a heliocentric distance of 3.32 au from the Sun, outbound from perihelion. We here report on the inferred properties of the eje
Autor:
Alice Lucchetti, M. De Cecco, R. Rodrigo, Michael Küppers, Laurent Jorda, Ivano Bertini, Nilda Oklay, W-H. Ip, Detlef Koschny, Marc Hofmann, J. L. Bertaux, Frank Scholten, Nicolas Thomas, J.-R. Kramm, V. Da Deppo, Clement Feller, P. J. Gutierrez, Dennis Bodewits, Sonia Fornasier, Carsten Güttler, I. Hall, Maurizio Pajola, Nafiseh Masoumzadeh, Francesco Marzari, Marco Fulle, A. Gicquel, M. A. Barucci, Jörg Knollenberg, Holger Sierks, Cesare Barbieri, Monica Lazzarin, Jakob Deller, Zhong-Yi Lin, David Kappel, Olivier Groussin, J. J. Lopez Moreno, Jean-Baptiste Vincent, Horst Uwe Keller, Michael F. A'Hearn, Luisa Lara, Giampiero Naletto, Pedro Hasselmann, Björn Davidsson, Cecilia Tubiana, Philippe Lamy, Antoine Pommerol, Stubbe F. Hviid, Hans Rickman, Frank Preusker, Xian Shi, Stefano Mottola, Gábor L. Kovács, Gabriele Cremonese, Ekkehard Kührt, J. D. P. Deshapriya, Stefano Debei
Publikováno v:
Oklay, N.; Mottola, S.; Vincent, J.-B.; Pajola, M.; Fornasier, S.; Hviid, S. F.; Kappel, D.; Kührt, E.; Keller, H. U.; Barucci, M. A.; Feller, C.; Preusker, F.; Scholten, F.; Hall, I.; Sierks, H.; Barbieri, C.; Lamy, P. L.; Rodrigo, R.; Koschny, D.; Rickman, H.; ... (2017). Long-term survival of surface water ice on comet 67P. Monthly notices of the Royal Astronomical Society, 469(Suppl_2), S582-S597. Oxford University Press 10.1093/mnras/stx2298
Monthly notices of the Royal Astronomical Society
469 (2017): S582–S597. doi:10.1093/mnras/stx2298
info:cnr-pdr/source/autori:Oklay, N.; Mottola, S.; Vincent, J. B.; Pajola, M.; Fornasier, S.; Hviid, S. F.; Kappel, D.; Kührt, E.; Keller, H. U.; Barucci, M. A.; Feller, C.; Preusker, F.; Scholten, F.; Hall, I.; Sierks, H.; Barbieri, C.; Lamy, P. L.; Rodrigo, R.; Koschny, D.; Rickman, H.; A'Hearn, M. F.; Bertaux, J. L.; Bertini, I.; Bodewits, D.; Cremonese, G.; Da Deppo, V.; Davidsson, B. J.R.; Debei, S.; De Cecco, M.; Deller, J.; Deshapriya, J. D.P.; Fulle, M.; Gicquel, A.; Groussin, O.; Gutiérrez, P. J.; Güttler, C.; Hasselmann, P. H.; Hofmann, M.; Ip, W. H.; Jorda, L.; Knollenberg, J.; Kovacs, G.; Kramm, J. R.; Küppers, M.; Lara, L. M.; Lazzarin, M.; Lin, Z. Y.; Lopez Moreno, J. J.; Lucchetti, A.; Marzari, F.; Masoumzadeh, N.; Naletto, G.; Pommerol, A.; Shi, X.; Thomas, N.; Tubiana, C./titolo:Long-term survival of surface water ice on comet 67P/doi:10.1093%2Fmnras%2Fstx2298/rivista:Monthly notices of the Royal Astronomical Society (Print)/anno:2017/pagina_da:S582/pagina_a:S597/intervallo_pagine:S582–S597/volume:469
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2017, 469 (Suppl_2), pp.S582-S597. ⟨10.1093/mnras/stx2298⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2017, 469 (Suppl_2), pp.S582-S597. ⟨10.1093/mnras/stx2298⟩
Monthly notices of the Royal Astronomical Society
469 (2017): S582–S597. doi:10.1093/mnras/stx2298
info:cnr-pdr/source/autori:Oklay, N.; Mottola, S.; Vincent, J. B.; Pajola, M.; Fornasier, S.; Hviid, S. F.; Kappel, D.; Kührt, E.; Keller, H. U.; Barucci, M. A.; Feller, C.; Preusker, F.; Scholten, F.; Hall, I.; Sierks, H.; Barbieri, C.; Lamy, P. L.; Rodrigo, R.; Koschny, D.; Rickman, H.; A'Hearn, M. F.; Bertaux, J. L.; Bertini, I.; Bodewits, D.; Cremonese, G.; Da Deppo, V.; Davidsson, B. J.R.; Debei, S.; De Cecco, M.; Deller, J.; Deshapriya, J. D.P.; Fulle, M.; Gicquel, A.; Groussin, O.; Gutiérrez, P. J.; Güttler, C.; Hasselmann, P. H.; Hofmann, M.; Ip, W. H.; Jorda, L.; Knollenberg, J.; Kovacs, G.; Kramm, J. R.; Küppers, M.; Lara, L. M.; Lazzarin, M.; Lin, Z. Y.; Lopez Moreno, J. J.; Lucchetti, A.; Marzari, F.; Masoumzadeh, N.; Naletto, G.; Pommerol, A.; Shi, X.; Thomas, N.; Tubiana, C./titolo:Long-term survival of surface water ice on comet 67P/doi:10.1093%2Fmnras%2Fstx2298/rivista:Monthly notices of the Royal Astronomical Society (Print)/anno:2017/pagina_da:S582/pagina_a:S597/intervallo_pagine:S582–S597/volume:469
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2017, 469 (Suppl_2), pp.S582-S597. ⟨10.1093/mnras/stx2298⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2017, 469 (Suppl_2), pp.S582-S597. ⟨10.1093/mnras/stx2298⟩
Numerous water-ice-rich deposits surviving more than several months on comet 67P/Churyumov-Gerasimenko were observed during the Rosetta mission. We announce the first-time detection of water-ice features surviving up to 2 yr since their first observa