All
 
|
 
 


Churyumov—Gerasimenko Comet: Results of the Studies by «Rosetta» Mission
 
PIIS0032874X0001447-0-1
DOI10.31857/S0032874X0001447-0
Publication type Article
Status Published
Authors
A. Basilevsky 
Occupation: chief researcher of the laboratory of comparative planetology
Affiliation: Vernadsky Institute of Geochemistry and Analytical Chemistry, RAS
Address: Russian Federation, Moscow
V. Dorofeeva
Affiliation: Vernadsky Institute of Geochemistry and Analytical Chemistry, RAS
Address: Russian Federation, Moscow
Journal namePriroda
EditionIssue №10
Pages3-17
Abstract

In the images of nucleus of comet 67P Churyumov—Gerasimenko consolidated material and fine-grained regolith formed due to its weathering are observed. Within the consolidated material the fractures, layer-like forms, knobs of different sizes, pinnacles and crater-like depressions are seen. Surface of the regolith is relatively smooth, but in some places features looking as eolian dunes are seen. By a set of instruments of orbital spacecraft and lander on the nucleus surface and in coma the mineral composition of the nucleus material was determined, a number of organic compounds were identified and deuterium/hydrogen ratio was measured. The latter one turned to be very different from that of terrestrial oceans.

 

Keywordscomet, comet nucleus, consolidated nucleus material, cometary regolith, surface texture, lineaments, cometary ices, isotope composition of hydrogen and nitrogen
Received18.10.2018
Publication date18.10.2018
Number of characters718
Cite   Download pdf To download PDF you should sign in
Размещенный ниже текст является ознакомительной версией и может не соответствовать печатной

views: 1712

Readers community rating: votes 0 

1. Owen T., Bar-Nun A. From the interstellar medium to planetary atmospheres via comets. Faraday Discussions. 1998; (109): 453–462. 
2. Marty B., Yokochi R. Water in the Early Earth. Water in Nominally anhydrous Minerals. Reviews in Mineralogy and Geochemistry. 2006; 62: 421–450.
3. Fesenkov V.G. On the nature of Tunguska meteorite. Meteoritics. 1961; XX: 27–31. (In Russ.).
4. Florensky C.P. Problem of cosmic dust and the modern status of study of Tunguska meteorite. Geokhimia. 1963; (3): 284–296. (In Russ.).
5. Basilevsky A.T., Keller H.U. Craters, smooth terrains, flows, and layering on the comet nuclei. Solar System Research. 2007; 41(2): 109–117.
6. Davidsson B.J.R., Sierks H., Güttler C. et al. The primordial nucleus of comet 67P/Churyumov—Gerasimenko. Astronomy & Astrophysics. 2016; 592: A63. 
7. Taylor G.G.T., Altobelli N., Buratti B.J., Choukroun M. The Rosetta mission orbiter science overview: The comet phase. Philosophical Transactions of the Royal Society. 2017; A375: 20160262. 
8. Boehnhardt H., Bibring J.-P., Apathy I. et al. The Philae lander mission and science overview. Philosophical Transactions of the Royal Society. 2017; A375: 20160248. 
9. Sierks H., Barbieri C., Lamy P.L. et al. On the nucleus structure and activity of comet 67P/Churyumov— Gerasimenko. Science. 2015; 347(6220): aaa1044–1–5. 
10. Groussin O., Jorda L., Auger A.-T. et al. Gravitational slopes, geomorphology and material strengths of the nucleus of comet 67P/Churyumov—Gerasimenko from OSIRIS observations. Astronomy & Astrophysics. 2015; 583: A32. 
11. Basilevsky A.T., Krasil’nikov S.S., Shiryaev A.A. et al. Estimating the strength of the nucleus material of comet 67P Churyumov—Gerasimenko. Solar System Research. 2016; 50(4): 225–234.
12. Basilevsky A.T., Mall U., Keller H.U. et al. Geologic analysis of the Rosetta NavCam, Osiris and ROLIS images of the comet 67P/Churyumov—Gerasimenko nucleus. Planetary and Space Science. 2017; 137: 1–19. 
13. Biele J., Ulamec S., Maibaum M. et al. The landing(s) of Philae and inferences about comet surface mechanical properties. Science. 2015; 349(6247): aaa9816–1. 
14. Thomas N., Sierks H., Barbieri C. et al. The morphological diversity of comet 67P/Churyumov—Gerasimenko. Science. 2015; 347(6220): aaa0440–1–6. 
15. Basilevsky A.T., Skorov Yu.V., Hviid S.F. et al. Lineaments observed on the surface of the consolidated material of nucleus of comet 67P Churyumov—Gerasimenko. Solar System Research. 2018. (In press).
16. Massironi M., Simioni E., Marzari F. et al. Two independent and primitive envelopes of the bilobate nucleus of comet 67P. Nature. 2015; 526: 402–405.
17. Brownlee D.E., Horz F., Newburn R.L. et al. Surface of young Jupiter family comet 81 P/Wild 2: view from the Stardust spacecraft. Science. 2004; 304(5678): 1764–1769. 
18. Basilevsky A.T., Krasilnikov S.S., Mall U. et al. Pinnacles on the 67P comet nucleus: Evidence for large scale erosion and hierarchical agglomeration of the nucleus. Planetary and Space Science. 2017; 140: 80–85. 
19. Ip W.-H., Lai I.-L., Lee J.-C. et al. Physical properties and dynamical relation of the circular depressions on comet 67P/Churyumov—Gerasimenko. Astronomy & Astrophysics. 2016; 591: A132.
20. Thomas N., Davidsson B., El-Maarry M.R. et al. Redistribution of particles across the nucleus of comet 67P/Churyumov—Gerasimenko. Astronomy & Astrophysics. 2016; 583: A17. 
21. Jia P., Andreotti B., Claudin P. Giant ripples on comet 67P/Churyumov—Gerasimenko sculpted by sunset thermal wind. Proceedings of the Nationall Academy of Sciences of the Unated States of Amarica (PNAS). 2017; 114(10): 2509–2514.

22. Emel’yanenko V.V., Asher D.J., Bailey M.E. A Model for the Common Origin of Jupiter Family and Halley Type Comets. Earth, Moon, and Planets. 2013; 110(1–2): 105–130.
23. Rotundi A., Sierks H., Della Corte V. et al. Dust measurements in the coma of comet 67P/Churyumov— Gerasimenko in bound to the Sun. Science. 2015; 347(6220): aaa3905.
24. Wooden D.H., Ishii H.A., Zolensky M.E. Cometary dust: the diversity of primitive refractory grains. Phil. Trans. R. Soc. A. 2017; 375(2097): 20160260. 
25. Bardyn A., Baklouti D., Cottin H. et al. Carbon-rich dust in comet 67P/Churyumov—Gerasimenko measured by COSIMA/Rosetta. Mon. Not. Roy. Astron. Soc. 2017; 469(2): S712–S722. 
26. Paquette J.A., Engrand C., Stenzel O., Hilchenbach M., Kissel J. Searching for calciumaluminum-rich inclusions in cometary particles with Rosetta/COSIMA. Meteorit. Planet. Sci. 2016; 51(7): 1340–1352. 
27. Simon S.B., Joswiak D.J., Ishii H.A. et al. A refractory inclusion returned by Stardust from comet 81P/Wild 2. Meteoritics & Planetary Science. 2008; 43(11): 1861–1877. 
28. Fray N., Bardyn A., Cottin H. et al. High-molecular-weight organic matter in the particles of comet 67p/Churyumov—Gerasimenko. Nature. 2016; 538: 72–74.
29. Bockelée-Morvan D., Lis D.C., Wink J.E. et al. New molecules found in comet C/1995 O1 (Hale-Bopp). Investigating the link between cometary and interstellar material. Astron. Astrophys. 2000; 353: 1101–1114.
30. Ciesla F.J., Sandford S.A. Organic synthesis via irradiation and warming of ice grains in the solar nebula. Science. 2012; 336: 452–454. 
31. Jessberger E.K., Christoforidis A., Kissel J. Aspects of the major element composition of Halley’s dust. Nature. 1988; 332: 691. 
32. Lodders K. Solar system abundances of the elements. Principles and Perspectives in Cosmochemistry. A.Goswami, B.E.Reddy (eds). Astrophysics and Space Science Proceedings. Berlin; Heidelberg, 2010; 379–417. 
33. Fray N., Bardyn A., Cottin H. et al. Nitrogen-to-carbon atomic ratio measured by COSIMA in the particles of comet 67P/Churyumov—Gerasimenko. Mon. Not. Roy. Astron. Soc. 2017; 469: S506.
34. Le Roy L., Altwegg K., Balsiger H. et al. Inventory of the volatiles on comet 67P/Churyumov-Gerasimenko from Rosetta/ROSINA. Astron. Astrophys. 2015; 583(A1).
35. Bockelée-Morvan D., Crovisier J., Erard S. et al. Evolution of CO2, CH4, and OCS abundances relative to H2O in the coma of comet 67P around perihelion from Rosetta/VIRTIS-H observations. Monthly Notices of the Royal Astronomical Society. 2016; 462(1): S170–S183. 
36. Altwegg K., Balsiger H., Bar-Nun A. et al. 67P/Churyumov—Gerasimenko, a Jupiter family comet with a high D/H ratio. Science. 2015; 347(6220): 1261952–1. Doi:10.1126/science.1261952.
37. Oró J. Comets and the formation of biochemical compounds on the primitive Earth. Nature. 1961; 190: 389–390. 
38. Goesmann F., Rosenbauer H., Bredehöft J.H. et al. Organic compounds on comet 67P/Churyumov—Gerasimenko revealed by COSAC mass spectrometry. Science. 2015; 349(6247): aab0689–1. 
39. Wright I.P., Sheridan S., Barber S.J. et al. CHO-bearing organic compounds at the surface of 67P/Churyumov—Gerasimenko revealed by Ptolemy. Science. 2015; 349(6247): aab0673–1.

Система Orphus

Loading...
Up