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A composite phase function for cometary dust comae [PDF]

Planetary and Space Science
Comets are primitive planetesimals we can study to infer knowledge about the initial stages of formation of our Solar System. Dust is the largest mass component among cometary materials. Emitted dust particles are anysotropic scatterers of the incident solar light and their nature can be investigated with remote sensing studies. Among such studies, the
Ivano Bertini, Jean–Baptiste Vincent, Raphael Marschall, Fiorangela La Forgia, Alessandra Mura, Laura Inno, Stavro Ivanovski, Michael Küppers, Cecilia Tubiana, Vladimir Zakharov   +9 more
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Cometary coma dust size distribution from in situ IR spectra [PDF]

, 2017
Dust is the most abundant component in cometary comae. Here, we investigate the dust size distribution in 67P/Churyumov-Gerasimenko (67P/CG) using data from the Rosetta spacecraft that was in close proximity to the comet from 2014 August to 2016 ...
Erard S., C. Leyrat, Taylor, F., Leyrat, C, Erard, S., Ciarniello M., G. Filacchione, Erard, S, Salatti, M, Filacchione, G, Taylor F., Filacchione G., Longobardo, A, Ciarniello, M., D’Aversa, E, Capria, Mt, Taylor, F, Della Corte, V., Rinaldi, G., Rinaldi, G, Rotundi A., S. L. Ivanovski, M. Ciarniello, Capaccioni, F., Leyrat C., Ciarniello, M, Rinaldi G., Bockelée-Morvan, D., Filacchione, G., Tozzi, G., Ivanovski, S., Fulle, M, F. Capaccioni, S. Mottola, Fulle, M., S. Erard, D’aversa, E., Tozzi G. ~P., Rotundi, A, Capria M. ~T., Salatti M., Capria, M., Capaccioni F., Della Corte V., Ivanovski S. ~L. Bockel'ee-Morvan D., Salatti, M., Palomba E., M. Salatti, Longobardo, A., Bockelée-Morvan, D, E. Palomba, V. Della Corte, A. Rotundi, Leyrat, C., Mottola, S, Mottola S., F. Taylor, Rotundi, A., Mottola, S., E. D’Aversa, Della Corte, V, D'Aversa E., Palomba, E., Tozzi, Gp, M. Fulle, Longobardo A., Ivanovski, Sl, M. T. Capria, G. Rinaldi, Fulle M., D. Bockelée-Morvan, G. P. Tozzi, Capaccioni, F, A. Longobardo, Palomba, E   +74 more
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Coma morphology and dust emission pattern of comet C/2020 F3 (NEOWISE) [PDF]

, 2021
The recent close approach of comet C/2020 F3 (NEOWISE) allowed us to study the morphology of its inner coma. From the measurement of the dust ejection velocity on spiral structures expanding around the nucleus, we estimated a mean deprojected expansion ...
Manzini, F., Ochner, P., Fardelli, G., Barbotin, E., Oldani, V., Behrend, R., BEDIN, Luigi   +6 more
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Rotating dust particles in the coma of comet 67P/Churyumov-Gerasimenko [PDF]

, 2015
Context. During September and October, 2014, OSIRIS cameras onboard ESA Rosetta mission detected millions of single particles. Many of these dust particles appear as long tracks (due to both the dust proper motion and the spacecraft motion during the ...
Lamy, P., Guettler, C., Kuehrt, E., S. Fornasier, Oklay, N.,, P. Gutierrez, BERTINI, IVANO, M. Küppers, Bertaux, J. -L., Davidsson, Björn, FULLE, Marco, B. Davidsson, Wenzel, K. -P., Thomas, Nicolas, Debei, S.,, Sabau, L., Wenzel, K. -P, Keller, H. U., G. Naletto, Sierks, H., A'Hearn, M. F.,, J. J. Lopez-Moreno, Barucci, M.A., Della Corte, V., A’Hearn, M. F., Rotundi, A.,, Ip, W., Wenzel, K. P., J.-L. Bertaux, C. Tubiana, Debei, S., Gutierrez, P.,, O. Groussin, Davidsson, B., Bertaux, J. -L, Naletto, G., MARZARI, FRANCESCO, L. Sabau, Lara, L.,, Vincent, J.-B., H. Michalik, Fulle, M., Lamy, P. L., Ip, W.,, V. Zakharov, K.-P. Wenzel, De Cecco, M.,, L. Lara, Bodewits, Dennis, Hviid, S., Knollenberg, J., Thomas, N., Guettler, C.,, DEBEI, STEFANO, Della Corte, V.,, Kührt, E., Vincent, J., Naletto, G.,, I. Bertini, Fulle, M.,, Lopez-Moreno, J., Lara, L., Groussin, O.,, R. Rodrigo, Wenzel, K., M. Lazzarin, J.-B. Vincent, V. Da Deppo, Barucci, M., Michalik, H.,, Da Deppo, V., M. De Cecco, Rotundi, A., Kueppers, M., BARBIERI, CESARE, Vincent, J. -B., Lopez Moreno, J. J., M. F. A’Hearn, Rodrigo, R., H. Rickman, Tubiana, C., C. Güttler, Rickman, H., Jorda, L.,, Groussin, O., Wenzel, K.-P., DELLA CORTE, VINCENZO, Kueppers, M.,, Güttler, C., Barucci, M. A., D. Koschny, J. Knollenberg, Barucci, M. A.,, Sabau, L.,, Vincent, J. -B, Kuehrt, E.,, Michalik, H., Bertaux, J.-L., De Cecco, M., A'Hearn, Michael F., Fornasier, S.,, H. U. Keller, N. Oklay, Koschny, D.,, Lazzarin, M., NALETTO, GIAMPIERO, Lazzarin, M.,, Bertaux, Jean-Loup, W. Ip, Barbieri, C., Lopez-Moreno, J.J., DA DEPPO, VANIA, Thomas, N.,, Koschny, D., P. L. Lamy, Oklay, N., A'Hearn, M. F., E. Kührt, Tubiana, C.,, S. L. Ivanovski, Lamy, P. L.,, R. Kramm, ROTUNDI, Alessandra, Rickman, Hans,, Bertini, I., F. Marzari, Gutierrez, P., M. A. Barucci, Ivanovski, S., Fornasier, S., L. Jorda, Zakharov, V., Kührt, Ekkehard, D. Bodewits, A'Hearn, M. F., IVANOVSKI, STAVRO LAMBROV, Bodewits, D.,, S. F. Hviid, Agarwal, J., Jorda, L., Bodewits, D., S. Debei, Zakharov, V.,, Barbieri, C.,, Kramm, R., Lopez-Moreno, J. J.,, Rodrigo, R.,, Da Deppo, V.,, Keller, H. U.,, Kramm, R.,, Bertaux, J. L., Cremonese, Gabriele, Bertaux, J., H. Sierks, C. Barbieri, Cremonese, G., G. Cremonese, Keller, H., Sierks, H.,, V. Della Corte, A. Rotundi, Marzari, F.,, Cremonese, G.,, LAZZARIN, MONICA, Ivanovski, S. L., Lopez-Moreno, J. J., Ivanovski, S. L.,, Küppers, M., A'Hearn, M., Hviid, S. F.,, M. Fulle, Agarwal, J.,, Vincent, J. B., Hviid, S. F., N. Thomas, Knollenberg, J.,, Bertini, I.,, Marzari, F., J. Agarwal   +178 more
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Parameters of dust jets in comet Encke’s coma

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACTUsing 4412 positional observations, we compute eight single apparition orbits in the period 1993–2017. The analysis of the residuals of the orbit’s fit shows their systematic deviations around perihelia. We assume that these deviations in positional observations are a result of the dust emissions from a restricted area of the nucleus, and that ...
Yu Medvedev, Yu Chernetenko
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Dust and gas emission from cometary nuclei: the case of comet 67P/Churyumov–Gerasimenko

Advances in Physics: X, 2018
Comets display with decreasing solar distance an increased emission of gas and dust particles, leading to the formation of the coma and tail. Spacecraft missions provide insight into the temporal and spatial variations of the dust and gas sources located
Tobias Kramer, Matthias Noack, Daniel Baum, Hans-Christian Hege, Eric J. Heller   +4 more
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Monte Carlo Models of Comet Dust Tails Observed from the Ground

Universe, 2022
Dust particles leaving the comet nucleus surface are entrained by the gas within the first few nuclear radius distances and are subjected to a complex hydrodynamical environment.
Fernando Moreno
doaj   +1 more source

Modelling observations of the inner gas and dust coma of comet 67P/Churyumov-Gerasimenko using ROSINA/COPS and OSIRIS data: First results [PDF]

, 2016
Context. This paper describes the initial modelling of gas and dust data acquired in August and September 2014 from the European Space Agency’s Rosetta spacecraft when it was in close proximity to the nucleus of comet 67P/Churyumov-Gerasimenko.
Lai, I.L., H. U. Keller, Wu, J. S., Kuehrt, E., Su, C. C., A. Gracia-Berná, X. Shi, NALETTO, GIAMPIERO, Liao, Y., K. Altwegg, Thomas, Nicolas, M. Rubin, Jorda, L, W.-H. Ip, Marschall, Raphael, Keller, H. U., G. Naletto, Sierks, H., Scholten, F., E. Kührt, A. Gicquel, Gracia-Berná, A., Ip, W., Y. Liao, Shi, X., Lai, I. L., Liao, Ying, J. S. Wu, Naletto, G., Gracia Berná, A., Ip, W.-H., L. Jorda, I. L. Lai, Vincent, J.-B., F. Scholten, Scholten, Frank, Vincent, J.B., Altwegg, Kathrin, R. Marschall, Jorda, L., Knollenberg, J., Preusker, F., Thomas, N., Ip, W. H., Vincent, J., Kührt, E., C. C. Su, Ip, W. -H., Y. Skorov, H. Sierks, Lai, I., Keller, H., J.-B. Vincent, Marschall, R., F. Preusker, Vincent, J. -B., Su, C., Ip, W-H., Wu, J.S., Gicquel, A., Wu, J., Preusker, Frank, Vincent, J. B., N. Thomas, Skorov, Y., Rubin, Martin, Altwegg, K., Su, C.C., J. Knollenberg, Rubin, M.   +69 more
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The dust coma of Comet P/Giacobini-Zinner in the infrared

The Astronomical Journal, 1992
We present 1-20 micrometers photometry of P/Giacobini-Zinner obtained at the NASA Infrared Telescope Facility, during 1985 June-September (r = 1.57-1.03 AU). A broad, weak 10 micrometers silicate emission feature was detected on August 26.6; a similar weak emission feature could have been hidden in the broadband photometry on other dates.
M S, Hanner, G J, Veeder, A T, Tokunaga
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A numerical model of cometary dust coma structures [PDF]

Astronomy and Astrophysics, 2010
Aims. The purpose of this study is to test our numerical model of cometary dust coma structures and to use the results to infer information about the nucleus surface activity of comet 9P/Tempel 1. Methods. Parameters on the activity were first estimated from simulations of ground-based observation acquired during the preperihelion period (January to ...
Vincent, J., Böhnhardt, H., Lara, L.
openaire   +2 more sources