Results 21 to 30 of about 549,270 (251)
A fully 3-dimensional thermal model of a comet nucleus [PDF]
, 2007 A 3-D numerical model of comet nuclei is presented. An implicit numerical
scheme was developed for the thermal evolution of a spherical nucleus composed
of a mixture of ice and dust. The model was tested against analytical
solutions, simplified numerical A’Hearn, Benkhoff, Benkhoff, Biver, Carslaw, Chesley, Cohen, Cowan, Dina Prialnik, Enzian, Enzian, Eric D. Rosenberg, Fanale, Ghormley, Gutiérrez, Herman, Huebner, Julian, Keller, Lamy, Prialnik, Prialnik, Schleicher, Schmitt, Sunshine +24 morecore +3 more sourcesComets beyond 4 au: How pristine are Oort nuclei? [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 Abstract The ESA mission Comet Interceptor will target an Oort or interstellar comet during its first approach to the Sun. Meanwhile, the Vera Rubin LSST Survey will observe hundreds of active comets per month beyond 4 au from the Sun, where water vapor pressure is expected to be too low to eject dust.Fulle Marco, Lazzarin M, La Forgia F, Zakharov V V, Bertini I, Epifani E Mazzotta, Ammannito E, Buzzoni A, Capria M T, Carbognani A, Da Deppo V, Corte V Della, Fiscale S, Frattin E, Inno L, Migliorini A, Pernechele C, Rotundi A, Sindoni G, Tubiana C, Milani G, Aletti A, Bacci P, Baj G, Bellini F, Bryssinck E, Di Grazia M, Facchini M, Feraco M, Guido E, Ligustri R, Kugel F, Maestripieri M, Tirelli D, Valvasori A, Snodgrass C, Jones G H +36 moreopenaire +7 more sourcesPhotometry of cometary nuclei: Rotation rates, colours and a comparison
with Kuiper Belt Objects [PDF]
, 2006 We present time-series data on Jupiter Family Comets (JFCs) 17P/Holmes,
47P/Ashbrook-Jackson and 137P/Shoemaker-Levy 2. In addition we also present
results from `snap-shot' observations of comets 43P/Wolf-Harrington,
44P/Reinmuth 2, 103P/Hartley 2 and ...A'Hearn, A'Hearn, A. Fitzsimmons, Asphaug, Boehnhardt, Britt, Brownlee, C. Snodgrass, Davidsson, Davis, Delahodde, Groussin, Harris, Howell, Hsieh, Hsieh, Hughes, Ip, Jewitt, Jewitt, Jewitt, Keller, Lacerda, Lamy, Lamy, Lamy, Landolt, Licandro, Licandro, Lowry, Lowry, Lowry, Lowry, Lowry, Luu, Luu, Ortiz, Peixinho, Pravec, Pravec, Richardson, Richardson, Russell, S. C. Lowry, Sagdeev, Schwehm, Sheppard, Snodgrass, Soderblom, Tody, Tody, Toth, Trilling, Weissman, Whipple, Whipple +55 morecore +3 more sourcesRadar Observations of Comet Nuclei and Comae [PDF]
Highlights of Astronomy, 2005 Nine comets have been detected with either the Arecibo (12.6 cm wavelength) or Goldstone (3.5 cm) radar systems. Included are six nucleus detections and five detections of echoes from coma grains. The radar backscatter cross sections measured for the nuclei correlate well with independent estimates of their sizes and are indicative of surface densities Donald B. Campbell, John K. Harmon, Micael C. Nolan, Steven J. Ostro +3 moreopenaire +1 more sourcePhotometry and polarimetry of the nucleus of comet 2P/Encke [PDF]
, 2008 Broadband imaging photometry, and broadband and narrowband linear polarimetry
was measured for the nucleus of 2P/Encke over the phase-angle range 4 - 28 deg.Bagnulo, S., Boehnhardt, H., Kolokolova, L., Muinonen, K., Nathues, A., Tozzi, G. P. +5 morecore +2 more sourcesThe 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 morecore +9 more sourcesComets and the Origin of Life: Structure of Comets Nuclei and Dust [PDF]
Symposium - International Astronomical Union, 2004 From observations of fragmentation events, clues to a gravitational aggregates structure of some comets nuclei are given. From in-situ and remote light scattering observations, a very high porosity is estimated for dust in comae. These results suggest a possible survival of cometary organics during atmospheric entry at the epoch of intense bombardment. A. Chantal Levasseur-Regourd, Emmanuel Desvoivres +1 moreopenaire +1 more source
