Results 31 to 40 of about 113,206 (352)

The activity characteristics and mechanisms of long-period comets

Earth and Planetary Physics
Comets are small celestial bodies orbiting around the Sun. They are remnants left over from the formation of the solar system; their interiors store original material of the planetary disk within the solar system. They are thus "fossils" for studying the
YingQi Wu, JianChun Shi, Man-To Hui, Xian Shi   +3 more
doaj   +1 more source

Predictions of the solar wind interaction with Comet Grigg-Skjellerup [PDF]

, 2008
The planned encounter of the Giotto spacecraft with comet Grigg-Skjellerup on 10th July 1992 promises to extend our knowledge of the solar wind interaction with comets substantially.
Coates, AJ, Huddleston, DE, Johnstone, AD   +2 more
core   +1 more source

Comet Pond II: Synergistic Intersection of Concentrated Extraterrestrial Materials and Planetary Environments to Form Procreative Darwinian Ponds

Life, 2018
In the “comet pond” model, a rare combination of circumstances enables the entry and landing of pristine organic material onto a planetary surface with the creation of a pond by a soft impact and melting of entrained ices.
Benton C. Clark, Vera M. Kolb
doaj   +1 more source

The Catalogue of Cometary Orbits and their Dynamical Evolution

, 2020
The new cometary catalogue containing data for almost 300 long-period comets that were discovered before 2018 is announced (the CODE catalogue). This is the first catalogue containing cometary orbits in five stages of their dynamical evolution, covering ...
Dybczyński, Piotr A., Królikowska, Małgorzata   +1 more
core   +1 more source

The Science of Sungrazers, Sunskirters, and Other Near-Sun Comets [PDF]

, 2017
This review addresses our current understanding of comets that venture close to the Sun, and are hence exposed to much more extreme conditions than comets that are typically studied from Earth. The extreme solar heating and plasma environments that these
A. Bemporad, A. Bemporad, A. Bemporad, A. Ciaravella, A. Morbidelli, A. Vourlidas, A. Vourlidas, A.-T. Auger, A.D. Thackeray, A.G. Emslie, A.J. Steffl, A.P. Boss, A.R. Dobrovolskis, Alan Fitzsimmons, Alice Decock, B. Donn, B.G. Marsden, B.G. Marsden, B.G. Marsden, B.G. Marsden, B.G. Marsden, B.G. Marsden, B.J. Gladman, B.J.R. Davidsson, B.J.R. Davidsson, B.J.R. Davidsson, B.P. Bonev, B.T. Gänsicke, B.V. Jackson, B.Y. Welsh, C. Alcock, C. Downs, C. Evans, C. Goetz, C. Lindsey, C. Snodgrass, C. Snodgrass, C.A. Schmidt, C.D. Perrine, C.D. Slaughter, C.F. Chyba, C.J. Manser, C.J. Schrijver, C.M. Lisse, Carey Lisse, Colin Snodgrass, Cyrielle Opitom, D. Bewsher, D. Chochol, D. de Winter, D. Eichler, D. Jewitt, D. Jewitt, D. Jewitt, D. Jewitt, D. Jewitt, D. Kirkwood, D. Nesvorný, D. Veras, D. Veras, D. Vokrouhlický, D.A. Biesecker, D.A. Mendis, D.B. Seaton, D.C. Boice, D.C. Boice, D.C. Boice, D.C. Boice, D.C. Hines, D.D. Durda, D.G. Schleicher, D.P. Cox, D.W. Hughes, D.W.E. Green, Daniel C. Boice, E. Asphaug, E. Bear, E. Bear, E. Everhart, E. Grün, E. Öpik, E.A. Kramer, E.E. Becklin, E.J. Öpik, F. Kiefer, F. Leblanc, G. Cremonese, G. Cremonese, G. Cremonese, G. Gloeckler, G. Jones, G. Schumacher, G. Tancredi, G.E. Brueckner, G.H. Jones, G.H. Jones, G.J. Melnick, G.W. Curtis, G.W. Kronk, G.W. Kronk, G.W. Kronk, G.W. Kronk, G.W. Preston, Geraint H. Jones, H. Boehnhardt, H. Campins, H. Kimura, H. Kreutz, H. Kreutz, H. Lamy, H. Rickman, H. Sierks, H.-E. Froehlich, H.-E. Froehlich, H.A. Weaver, H.A. Weaver, H.A. Weaver, H.E. Schlichting, H.F. Levison, H.F. Levison, I. Konno, I. Mann, I. Mann, I. Mann, I. Toth, Ingrid Mann, J. Brown, J. Farihi, J. Li, J. Pittichová, J.-B. Vincent, J.-L. Bertaux, J.-P. Wuelser, J.-Y. Li, J.C. Brandt, J.C. Brown, J.C. Brown, J.C. Brown, J.C. Brown, J.C. Raymond, J.C. Raymond, J.C. Raymond, J.E. Bortle, J.E. Richardson, J.J. Cowan, J.K. Steckloff, J.K. Steckloff, J.K. Steckloff, J.L. Bertaux, J.L. Kohl, J.L. Kohl, J.M. Pasachoff, J.P. Cassinelli, J.R. Hill, J.R. Hill, J.R. Lemen, J.T.T. Mäkinen, J.V. Keane, John Brown, John Raymond, Jordan K. Steckloff, K. Jockers, K. Nishioka, K. Ohtsuka, K. Szegö, K. Watson, K. Wilhelm, K.A. Holsapple, K.J. England, K.J. Meech, K.J. Meech, K.J. Meech, Karl Battams, Kimberley S. Birkett, L. Golub, L. Jorda, L. Kolokolova, L. Kresák, L. O’Rourke, L.L. Williams, M. Benna, M. Bzowski, M. Drahus, M. Druckmüller, M. Fulle, M. Fulle, M. Granvik, M. Hirabayashi, M. Iseli, M. Micheli, M. Neugebauer, M. Pajola, M. Pätzold, M. Uzzo, M.-M. Mac Low, M.-T. Hui, M.-T. Hui, M.-T. Hui, M.A. Cordiner, M.A. Leake, M.B. Niedner Jr., M.B. Swift, M.E. Bailey, M.F. A’Hearn, M.J. Koomen, M.L. Lidov, M.M. Knight, M.M. Knight, M.M. Knight, M.M. Knight, M.M. Knight, M.M. Knight, M.R. Combi, M.R. Combi, M.S. Povich, M.S.P. Kelley, Maciej Bzowski, Matthew M. Knight, N. Movshovitz, N.H. Samarasinha, N.J. Fox, N.R. Sheeley Jr., O.C. St. Cyr, P. Bryans, P. Bryans, P. Farinella, P. Lamy, P. Lamy, P. Notni, P. Santos-Sanz, P.A. Isenberg, P.I. McCauley, P.L. Lamy, P.L. Lamy, P.R. Weissman, P.R. Weissman, P.R. Weissman, P.R. Weissman, P.R. Weissman, P.R. Weissman, P.R. Weissman, P.R. Weissman, P.R. Weissman, P.W. Chodas, Patrick McCauley, Paul Weissman, Q.-Z. Ye, R. Gomes, R. Howard, R. Kokotanekova, R. Lallement, R. Martín-Doménech, R. Schulz, R. Strom, R. Wegmann, R. Wegmann, R. Wegmann, R. Wegmann, R. Wegmann, R. Wegmann, R. Wegmann, R.A. Howard, R.M. MacQueen, R.M. MacQueen, S. Giordano, S. Greenstreet, S. Mancuso, S.D. Rodgers, S.F. Hönig, S.L. Montgomery, S.V. Kharchuk, Silvio Giordano, T. Heidarzadeh, T. Lovejoy, T. Page, T.A. Kuchar, T.E. Cravens, T.I. Gombosi, T.L. Farnham, T.L. Farnham, W. Curdt, W.-H. Ip, W.D. Pesnell, W.D.W. Abney, W.F. Bottke, W.F. Huebner, W.F. Huebner, W.F. Huebner, W.T. Reach, W.W. Campbell, Y. Ellinger, Y. Grynko, Y. Kozai, Y. Shinnaka, Y. Shou, Y.-D. Jia, Y.D. Jia, Y.D. Jia, Y.R. Fernández, Yudish Ramanjooloo, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekanina, Z. Sekenina   +317 more
core   +9 more sources

Comets of the Marsden and Kracht groups

Open Astronomy, 2018
Perihelion distances of Marsden and Kracht group comets fall into the range 6RS < q < 12RS (the Meyer group comets also share the same perihelion interval).
Kalinicheva Olga V.
doaj   +1 more source

Migration Groups: A Poorly Explored Point of View for Genetic Damage Assessment Using Comet Assay in Human Lymphocytes

Applied Sciences, 2021
A new point of view for genetic damage assessment using the comet assay is proposed based on the number of migration groups, the number of comets in each group, and the groups with the highest number of comets. Human lymphocytes were exposed to different
Mónica Reynoso-Silva, Carlos Álvarez-Moya, Rafael Ramírez-Velasco, Alexis Gerardo Sámano-León, Erandi Arvizu-Hernández, Hugo Castañeda-Vásquez, Mario Alberto Ruíz-Lopez   +6 more
doaj   +1 more source

Extrasolar comets : the origin of dust in exozodiacal disks?

, 2016
Comets have been invoked in numerous studies as a potentially important source of dust and gas around stars, but none has studied the thermo-physical evolution, out-gassing rate, and dust ejection of these objects in such stellar systems.
Augereau, Jean-Charles, Bonsor, Amy, Marboeuf, Ulysse   +2 more
core   +3 more sources

The CN Isotopic Ratios In Comets [PDF]

, 2009
Our aim is to determine the isotopic ratios (12)C/(13)C and (14)N/(15)N in a variety of comets and link these measurements to the formation and evolution of the solar system. The (12)C/(13)C and (14)N/(15)N isotopic ratios are measured for the CN radical
Arpigny, C., Cochran, A., Hutsemekers, D., Ilyin, I., Jehin, E., Manfroid, J., Schulz, R., Stuwe, J. A., Zucconi, J. M.   +8 more
core   +4 more sources

Ballistic regime for random walks in random environment with unbounded jumps and Knudsen billiards [PDF]

, 2010
We consider a random walk in a stationary ergodic environment in $\mathbb Z$, with unbounded jumps. In addition to uniform ellipticity and a bound on the tails of the possible jumps, we assume a condition of strong transience to the right which implies ...
Comets, Francis, Popov, Serguei
core   +4 more sources