Search Results - "Hoefner, S"

Summer fireworks on comet 67P by Vincent, J.-B., A'Hearn, M. F., Lin, Z.-Y., El-Maarry, M. R., Pajola, M., Sierks, H., Barbieri, C., Lamy, P. L., Rodrigo, R., Koschny, D., Rickman, H., Keller, H. U., Agarwal, J., Barucci, M. A., Bertaux, J.-L., Bertini, I., Besse, S., Bodewits, D., Cremonese,  G., Da Deppo, V., Davidsson, B., Debei, S., De Cecco, M., Deller, J., Fornasier, S., Fulle, M., Gicquel, A., Groussin, O., Gutiérrez, P. J., Gutiérrez-Marquez, P., Güttler, C., Höfner, S., Hofmann, M., Hviid, S. F., Ip, W.-H., Jorda, L., Knollenberg, J., Kovacs,  G., Kramm, J.-R., Kührt, E., Küppers, M., Lara, L. M., Lazzarin, M., Lopez Moreno, J. J., Marzari, F., Massironi, M., Mottola, S., Naletto, G., Oklay, N., Preusker, F., Scholten, F., Shi, X., Thomas, N., Toth, I., Tubiana, C.

“…During its two years mission around comet 67P/Churyumov-Gerasimenko, ESA's Rosetta spacecraft had the unique opportunity to follow closely a comet in the most…”
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Acceleration of individual, decimetre-sized aggregates in the lower coma of comet 67P/Churyumov–Gerasimenko by Agarwal, Jessica, A'Hearn, M. F., Vincent, J.-B., Güttler, C., Höfner, S., Sierks, H., Tubiana, C., Barbieri, C., Lamy, P. L., Rodrigo, R., Koschny, D., Rickman, H., Barucci, M. A., Bertaux, J.-L., Bertini, I., Boudreault, S., Cremonese,  G., Da Deppo, V., Davidsson, B., Debei, S., De Cecco, M., Deller, J., Fornasier, S., Fulle, M., Gicquel, A., Groussin, O., Gutiérrez, P. J., Hofmann, M., Hviid, S. F., Ip, W.-H., Jorda, L., Keller, H. U., Knollenberg, J., Kramm, J.-R., Kührt, E., Küppers, M., Lara, L. M., Lazzarin, M., Lopez Moreno, J. J., Marzari, F., Naletto, G., Oklay, N., Shi, X., Thomas, N.

“…We present OSIRIS/NAC observations of decimetre-sized, likely ice-containing aggregates ejected from a confined region on the surface of comet…”
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On the Evolution of Comets by Guilbert-Lepoutre, A., Besse, S., Mousis, O., Ali-Dib, M., Höfner, S., Koschny, D., Hager, P.

“…Studying comets is believed to bring invaluable clues on the formation and evolution of our planetary system. In comparison to planets, they have undergone…”
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The pebbles/boulders size distributions on Sais: Rosetta’s final landing site on comet 67P/Churyumov–Gerasimenko by Pajola, M., Lucchetti, A., Fulle, M., Mottola, S., Hamm, M., Da Deppo, V., Penasa, L., Kovacs, G., Massironi, M., Shi, X., Tubiana, C., Güttler, C., Oklay, N., Vincent, J. B., Toth, I., Davidsson, B., Naletto, G., Sierks, H., Barbieri, C., Lamy, P. L., Rodrigo, R., Koschny, D., Rickman, H., Keller, H. U., Agarwal, J., A’Hearn, M. F., Barucci, M. A., Bertaux, J. L., Bertini, I., Cremonese, G., Debei, S., De Cecco, M., Deller, J., El Maarry, M. R., Fornasier, S., Frattin, E., Gicquel, A., Groussin, O., Gutierrez, P. J., Höfner, S., Hofmann, M., Hviid, S. F., Ip, W. H., Jorda, L., Knollenberg, J., Kramm, J. R., Kührt, E., Küppers, M., Lara, L. M., Lazzarin, M., Moreno, J. J. Lopez, Marzari, F., Michalik, H., Preusker, F., Scholten, F., Thomas, N.

“…Abstract By using the imagery acquired by the Optical, Spectroscopic, and Infrared Remote Imaging System Wide-Angle Camera (OSIRIS WAC), we prepare a…”
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Meter-scale thermal contraction crack polygons on the nucleus of comet 67P/Churyumov-Gerasimenko by Auger, A.-T., Groussin, O., Jorda, L., El-Maarry, M.R., Bouley, S., Séjourné, A., Gaskell, R., Capanna, C., Davidsson, B., Marchi, S., Höfner, S., Lamy, P.L., Sierks, H., Barbieri, C., Rodrigo, R., Koschny, D., Rickman, H., Keller, H.U., Agarwal, J., A’Hearn, M.F., Barucci, M.A., Bertaux, J.-L., Bertini, I., Cremonese, G., Da Deppo, V., Debei, S., De Cecco, M., Fornasier, S., Fulle, M., Gutiérrez, P.J., Güttler, C., Hviid, S., Ip, W.-H., Knollenberg, J., Kramm, J.-R., Kührt, E., Küppers, M., Lara, L.M., Lazzarin, M., Lopez Moreno, J.J., Marzari, F., Massironi, M., Michalik, H., Naletto, G., Oklay, N., Pommerol, A., Sabau, L., Thomas, N., Tubiana, C., Vincent, J.-B., Wenzel, K.-P.

“…•Polygonal morphologies with a mean size of 3.0 m are reported on the nucleus of comet 67P.•Polygons are consistent with thermal contraction crack polygons…”
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On the Evolution of Comets Review article by A., Guilbert-Lepoutre, Besse, S., Mousis, O., Ali-Dib, M., Hoefner, S., Koschny, D., Hager, P.

“…Studying comets is believed to bring invaluable clues on the formation and evolution of our planetary system. In comparison to planets, they have undergone…”
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Sublimation of icy aggregates in the coma of comet 67P/Churyumov–Gerasimenko detected with the OSIRIS cameras on board Rosetta by Gicquel, A., Vincent, J.-B., Agarwal, J., A'Hearn, M. F., Bertini, I., Bodewits, D., Sierks, H., Lin, Z.-Y., Barbieri, C., Lamy, P. L., Rodrigo, R., Koschny, D., Rickman, H., Keller, H. U., Barucci, M. A., Bertaux, J.-L., Besse, S., Cremonese, G., Da Deppo, V., Davidsson, B., Debei, S., Deller, J., De Cecco, M., Frattin, E., El-Maarry, M. R., Fornasier, S., Fulle, M., Groussin, O., Gutiérrez, P. J., Gutiérrez-Marquez, P., Güttler, C., Höfner, S., Hofmann, M., Hu, X., Hviid, S. F., Ip, W.-H., Jorda, L., Knollenberg, J., Kovacs, G., Kramm, J.-R., Kührt, E., Küppers, M., Lara, L. M., Lazzarin, M., Moreno, J. J. Lopez, Lowry, S., Marzari, F., Masoumzadeh, N., Massironi, M., Moreno, F., Mottola, S., Naletto, G., Oklay, N., Pajola, M., Pommerol, A., Preusker, F., Scholten, F., Shi, X., Thomas, N., Toth, I., Tubiana, C.

“…Beginning in March 2014, the OSIRIS (Optical, Spectroscopic, and Infrared Remote Imaging System) cameras began capturing images of the nucleus and coma (gas…”
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Modelling of the outburst on 2015 July 29 observed with OSIRIS cameras in the Southern hemisphere of comet 67P/Churyumov–Gerasimenko by Gicquel, A., Rose, M., Vincent, J.-B., Davidsson, B., Bodewits, D., A’Hearn, M. F., Agarwal, J., Fougere, N., Sierks, H., Bertini, I., Lin, Z.-Y., Barbieri, C., Lamy, P. L., Rodrigo, R., Koschny, D., Rickman, H., Keller, H. U., Barucci, M. A., Bertaux, J.-L., Besse, S., Boudreault, S., Cremonese, G., Da Deppo, V., Debei, S., Deller, J., De Cecco, M., Frattin, E., El-Maarry, M. R., Fornasier, S., Fulle, M., Groussin, O., Gutiérrez, P. J., Gutiérrez-Marquez, P., Güttler, C., Höfner, S., Hofmann, M., Hu, X., Hviid, S. F., Ip, W.-H., Jorda, L., Knollenberg, J., Kovacs, G., Kramm, J.-R., Kührt, E., Küppers, M., Lara, L. M., Lazzarin, M., Moreno, J. J. Lopez, Lowry, S., Marzari, F., Masoumzadeh, N., Massironi, M., Moreno, F., Mottola, S., Naletto, G., Oklay, N., Pajola, M., Preusker, F., Scholten, F., Shi, X., Thomas, N., Toth, I., Tubiana, C.

“…Abstract Images of the nucleus and the coma (gas and dust) of comet 67P/Churyumov– Gerasimenko have been acquired by the OSIRIS (Optical, Spectroscopic and…”
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Dust Formation and Winds around Evolved Stars: The Good, the Bad and the Ugly Cases by Hoefner, S

“…Cool luminous giants, in particular asymptotic giant branch stars, are among the most important sources of cosmic dust. Their extended dynamical atmospheres…”
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Headwind: Modelling Mass Loss of AGB Stars, Against All Odds by Hoefner, S

“…The intricate interplay of atmospheric shock waves and a complex, variable radiation field with non-equilibrium dust formation presents a considerable…”
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(Re)Solving the dynamic atmospheres of carbon-rich giants by Hron, J., Verhoelst, Tijl, Nowotny, W., Hoefner, S., Galsteter, W.

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Synthetic radii and visibilities for pulsating red giants by Hron, Josef, Nowotny, Walter, Gautschy-Loidl, Rita, Hoefner, Susanne

“…We present synthetic radii and visibilities in the IR, based on hydrostatic and dynamic model atmospheres of carbon stars. The differences between these two…”
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VLTI-GRAVITY measurements of cool evolved stars: I. Variable photosphere and extended atmosphere of the Mira star R Peg by Wittkowski, M, Rau, G, Chiavassa, A, Hoefner, S, Scholz, M, Wood, P. R, de Wit, W. J, Eisenhauer, F, Haubois, X, Paumard, T

“…A&A 613, L7 (2018) Dynamic model atmospheres of Mira stars predict variabilities in the photospheric radius and in atmospheric molecular layers which are not…”
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Near-infrared spectro-interferometry of Mira variables and comparisons to 1D dynamic model atmospheres and 3D convection simulations by Wittkowski, M, Chiavassa, A, Freytag, B, Scholz, M, Hoefner, S, Karovicova, I, Whitelock, P. A

“…A&A 587, A12 (2016) We obtained a total of 20 near-infrared K-band spectro-interferometric snapshot observations of the Mira variables o Cet, R Leo, R Aqr, X…”
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Synthetic photometry for carbon-rich giants. III. Tracing the sequence of mass-losing galactic C-type Miras by Nowotny, W, Aringer, B, Hoefner, S, Eriksson, K

“…With the help of model calculations we aim at reproducing the observational photometric findings for a large sample of well-characterised galactic C-type Mira…”
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Line formation in AGB atmospheres including velocity effects. Molecular line profile variations of long period variables by Nowotny, W, Hoefner, S, Aringer, B

“…The atmospheres of evolved red giants are considerably influenced by pulsations of the stellar interiors and developing stellar winds. The resulting complex…”
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Winds of M- and S-type AGB stars: an unorthodox suggestion for the driving mechanism by Hoefner, S, Andersen, A. C

“…Astron.Astrophys.465:L39,2007 Current knowledge suggests that the dust-driven wind scenario provides a realistic framework for understanding mass loss from…”
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Three-component modeling of C-rich AGB star winds III. Micro-physics of drift-dependent dust formation by Sandin, C, Hoefner, S

“…Astron.Astrophys. 413 (2004) 789 A proper treatment of the non-equilibrium dust formation process is crucial in models of AGB star winds. In this paper the…”
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Three-component modeling of C-rich AGB star winds. II. The effects of drift in long-period variables by Sandin, C, Hoefner, S

“…Astron.Astrophys. 404 (2003) 789 We present three-component wind models for carbon rich pulsating AGB stars. In particular we study the effects of drift in…”
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Three-component modeling of C-rich AGB star winds I. Method and first results by Sandin, C, Hoefner, S

“…Astron.Astrophys. 398 (2003) 253-266 Radiative acceleration of newly-formed dust grains and transfer of momentum from the dust to the gas plays an important…”
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