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Related papers: Comet 67P/Churyumov-Gerasimenko rotation changes d…

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Comet 67P/Churyumov-Gerasimenko (67P) become observable for the first time in 2021 since the Rosetta rendezvous in 2014--16. Here, we present pre-perihelion polarimetric measurements of 67P from 2021 performed with the Very Large Telescope…

We present a summary of the campaign of remote observations that supported the European Space Agency's Rosetta mission. Telescopes across the globe (and in space) followed comet 67P/Churyumov-Gerasimenko from before Rosetta's arrival until…

Earth and Planetary Astrophysics · Physics 2017-05-31 C. Snodgrass , M. F. A'Hearn , F. Aceituno , V. Afanasiev , S. Bagnulo , J. Bauer , G. Bergond , S. Besse , N. Biver , D. Bodewits , H. Boehnhardt , B. P. Bonev , G. Borisov , B. Carry , V. Casanova , A. Cochran , B. C. Conn , B. Davidsson , J. K. Davies , J. de León , E. de Mooij , M. de Val-Borro , M. Delacruz , M. A. DiSanti , J. E. Drew , R. Duffard , N. J. T. Edberg , S. Faggi , L. Feaga , A. Fitzsimmons , H. Fujiwara , E. L. Gibb , M. Gillon , S. F. Green , A. Guijarro , A. Guilbert-Lepoutre , P. J. Gutiérrez , E. Hadamcik , O. Hainaut , S. Haque , R. Hedrosa , D. Hines , U. Hopp , F. Hoyo , D. Hutsemékers , M. Hyland , O. Ivanova , E. Jehin , G. H. Jones , J. V. Keane , M. S. P. Kelley , N. Kiselev , J. Kleyna , M. Kluge , M. M. Knight , R. Kokotanekova , D. Koschny , E. Kramer , J. J. López-Moreno , P. Lacerda , L. M. Lara , J. Lasue , H. J. Lehto , A. C. Levasseur-Regourd , J. Licandro , Z. Y. Lin , T. Lister , S. C. Lowry , A. Mainzer , J. Manfroid , J. Marchant , A. J. McKay , A. McNeill , K. J. Meech , M. Micheli , I. Mohammed , M. Monguió , F. Moreno , O. Muñoz , M. J. Mumma , P. Nikolov , C. Opitom , J. L. Ortiz , L. Paganini , M. Pajuelo , F. J. Pozuelos , S. Protopapa , T. Pursimo , B. Rajkumar , Y. Ramanjooloo , E. Ramos , C. Ries , A. Riffeser , V. Rosenbush , P. Rousselot , E. L. Ryan , P. Santos-Sanz , D. G. Schleicher , M. Schmidt , R. Schulz , A. K. Sen , A. Somero , A. Sota , A. Stinson , J. Sunshine , A. Thompson , G. P. Tozzi , C. Tubiana , G. L. Villanueva , X. Wang , D. H. Wooden , M. Yagi , B. Yang , B. Zaprudin , T. J. Zegmott

The process of cometary activity continues to pose a challenging question in cometary science. The activity modeling of comet 67P/Churyumov-Gerasimenko, based on data from the Rosetta mission, has significantly enhanced our comprehension of…

Earth and Planetary Astrophysics · Physics 2024-07-24 Pablo Lemos , Jessica Agarwal , Raphael Marschall , Marius Pfeifer

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,…

Astrophysics · Physics 2008-11-26 E. D. Rosenberg , D. Prialnik

As the ESA Rosetta mission approached, orbited, and sent a lander to comet 67P/Churyumov-Gerasimenko in 2014, a large campaign of ground-based observations also followed the comet. We constrain the total activity level of the comet by…

The European Space Agency Rosetta/Philae mission to Comet 67P/Churyumov-Gerasimenko in 2014-2016 is the most complete and diverse investigation of a comet carried out thus far. Yet, many physical and chemical properties of the comet remain…

Earth and Planetary Astrophysics · Physics 2022-09-14 Björn J. R. Davidsson , Nalin H. Samarasinha , Davide Farnocchia , Pedro J. Gutiérrez

Context. The first long-term in-situ observation of the plasma environment in the vicinity of a comet, as provided by the European Rosetta spacecraft. Aims. Here we offer characterisation of the solar wind flow near…

Earth and Planetary Astrophysics · Physics 2018-05-16 E. Behar , J. Lindkvist , H. Nilsson , M. Holmström , G. Stenberg Wieser , R. Ramstad , C. Goetz

The Rosetta spacecraft accompanied the comet 67P/C-G for nearly 2 years, collecting valuable data on the neutral and ion composition of the coma. The Rosetta Plasma Consortium (RPC) provided continuous measurements of the in situ plasma…

Earth and Planetary Astrophysics · Physics 2024-11-13 Sana Ahmed , Vikas Soni

Solar wind charge-changing reactions are of paramount importance to the physico-chemistry of the atmosphere of a comet. The ESA/Rosetta mission to comet 67P/Churyumov-Gerasimenko (67P) provides a unique opportunity to study charge-changing…

Reproducing the observed activity of comets with thermophysical models remains a primary challenge of cometary science. We use a pebble-based thermophysical model of gas-pressure build-up in the subsurface to reproduce the global emission…

One of the key findings of the Rosetta's mission to the Jupiter family comet 67P/Churyumov-Gerasimenko was its peculiar bilobed shape along with the apparent north/south dichotomy in large scale morphology. This has re-ignited scientific…

Earth and Planetary Astrophysics · Physics 2020-02-19 Yuhui Zhao , Ladislav Rezac , Yuri Skorov , Jian-Yang Li

The coma of comet 67P/Churyumov-Gerasimenko has been probed by the Rosetta spacecraft and shows a variety of different molecules. The ROSINA COmet Pressure Sensor and the Double Focusing Mass Spectrometer provide in-situ densities for many…

Earth and Planetary Astrophysics · Physics 2022-02-11 Matthias Laeuter , Tobias Kramer , Martin Rubin , Kathrin Altwegg

We present observations of comet 67P/Churyumov-Gerasimenko acquired in support of the $Rosetta$ mission. We obtained usable data on 68 nights from 2014 September until 2016 May, with data acquired regularly whenever the comet was…

Earth and Planetary Astrophysics · Physics 2017-11-15 Matthew M. Knight , Colin Snodgrass , Jean-Baptiste Vincent , Blair Conn , Brian A. Skiff , David G. Schleicher , Tim Lister

The Rosetta mission provided us with detailed data of the surface of the nucleus of comet 67P/Churyumov-Gerasimenko.In order to better understand the physical processes associated with the comet activity and the surface evolution of its…

Earth and Planetary Astrophysics · Physics 2021-05-26 A. Bouquety , L. Jorda , O. Groussin , A. Sejourné , S. Bouley , F. Costard

The Rosetta probe around comet 67P/Churyumov-Gerasimenko (67P) reveals an anisotropic dust distribution of the inner coma with jet-like structures. The physical processes leading to jet formation are under debate, with most models for…

Earth and Planetary Astrophysics · Physics 2016-07-14 Tobias Kramer , Matthias Noack

We present results from our 47-night imaging campaign of Comet 41P/Tuttle-Giacobini-Kresak conducted from Lowell Observatory between 2017 February 16 and July 2. Coma morphology revealed gas jets, whose appearance and motion as a function…

Earth and Planetary Astrophysics · Physics 2019-02-20 David G. Schleicher , Matthew M. Knight , Nora L. Eisner , Audrey Thirouin

The results of the photometric observations of comet 29P/Schwassmann-Wachmann 1 are analyzed. The comet demonstrates substantial activity at heliocentric distances larger than 5 AU, outside the water ice sublimation zone. The CCD images of…

Earth and Planetary Astrophysics · Physics 2020-12-17 A. V. Ivanova , V. L. Afanasiev , P. P. Korsun , A. R. Baranskii , M. V. Andreev , V. A. Ponomarenko

We analysed layering-related linear features on the surface of comet 67P/Churyumov-Gerasimenko (67P) to determine the internal configuration of the layerings within the nucleus. We used high-resolution images from the OSIRIS Narrow Angle…

Earth and Planetary Astrophysics · Physics 2019-01-03 Birko-Katarina Ruzicka , Luca Penasa , Hermann Boehnhardt , Andreas Pack , Benoit Dolives , Fabrice Souvannavong , Emile Remetean

Between 2014 December 31 and 2015 March 17, the OSIRIS cameras on Rosetta documented the growth of a 140m wide and 0.5m deep depression in the Hapi region on Comet 67P/Churyumov-Gerasimenko. This shallow pit is one of several that later…

Samarasinha & Mueller (2013) related changes of cometary rotation to other physical parameters for four Jupiter family comets defining a parameter $X$, which is approximately constant within a factor of two irrespective of the active…

Earth and Planetary Astrophysics · Physics 2018-08-29 Beatrice E. A. Mueller , Nalin H. Samarasinha