WFRF:(Broiles T. W.)
Search: WFRF:(Broiles T. W.) > (2015) > ROSINA/DFMS and IES...
- 1 of 1
- Previous record
- Next record
- To hitlist
- Fuselier, S. A.SW Res Inst, Div Space Sci, San Antonio, TX 78228 USA.;Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX 78249 USA. (author)
ROSINA/DFMS and IES observations of 67P : Ion-neutral chemistry in the coma of a weakly outgassing comet
- Article/chapterEnglish2015
Publisher, publication year, extent ...
- 2015-10-30
- EDP Sciences,2015
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:uu-270603
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-270603URI
- https://doi.org/10.1051/0004-6361/201526210DOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- Context. The Rosetta encounter with comet 67P/Churyumov-Gerasimenko provides a unique opportunity for an in situ, up-close investigation of ion-neutral chemistry in the coma of a weakly outgassing comet far from the Sun. Aims. Observations of primary and secondary ions and modeling are used to investigate the role of ion-neutral chemistry within the thin coma. Methods. Observations from late October through mid-December 2014 show the continuous presence of the solar wind 30 km from the comet nucleus. These and other observations indicate that there is no contact surface and the solar wind has direct access to the nucleus. On several occasions during this time period, the Rosetta/ROSINA/Double Focusing Mass Spectrometer measured the low-energy ion composition in the coma. Organic volatiles and water group ions and their breakup products (masses 14 through 19), COP, and CO, (masses 28 and 44) and other mass peaks (at masses 26, 27, and possibly 30) were observed. Secondary ions include H3O+ and HCO+ (masses 19 and 29). These secondary ions indicate ion-neutral chemistry in the thin coma of the comet. A relatively simple model is constructed to account for the low H3O /H2O+ and HCO /CO+ ratios observed in a water dominated coma. Results from this simple model are compared with results from models that include a more detailed chemical reaction network. Results. At low outgassing rates, predictions from the simple model agree with observations and with results from more complex models that include much more chemistry. At higher outgassing rates, the ion-neutral chemistry is still limited and high HCO /CO+ ratios are predicted and observed. However, at higher outgassing rates, the model predicts high H3O /H2O+ ratios and the observed ratios are often low. These low ratios may be the result of the highly heterogeneous nature of the coma, where CO and CO2 number densities can exceed that of water.
Subject headings and genre
- NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
- NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
- comets: individual: 67P/Churyumov-Gerasimenko
- solar wind
- plasmas
- molecular processes
- methods: data analysis
Added entries (persons, corporate bodies, meetings, titles ...)
- Altwegg, K.Univ Bern, Inst Phys, CH-3012 Bern, Switzerland. (author)
- Balsiger, H.Univ Bern, Inst Phys, CH-3012 Bern, Switzerland. (author)
- Berthelier, J. J.LATMOS, F-94100 St Maur, France. (author)
- Bieler, A.Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA. (author)
- Briois, C.Univ Orleans, CNRS, UMR 6115, Lab Phys & Chim Environm & Espace LPC2E, F-45071 Orleans 2, France. (author)
- Broiles, T. W.SW Res Inst, Div Space Sci, San Antonio, TX 78228 USA. (author)
- Burch, J. L.SW Res Inst, Div Space Sci, San Antonio, TX 78228 USA. (author)
- Calmonte, U.Univ Bern, Inst Phys, CH-3012 Bern, Switzerland. (author)
- Cessateur, G.Belgian Inst Space Aeron BIRA IASB, B-1180 Brussels, Belgium. (author)
- Combi, M.Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA. (author)
- De Keyser, J.Belgian Inst Space Aeron BIRA IASB, B-1180 Brussels, Belgium. (author)
- Fiethe, B.Tech Univ Carolo Wilhelmina Braunschweig, Inst Comp & Network Engn IDA, D-38106 Braunschweig, Germany. (author)
- Galand, M.Univ London Imperial Coll Sci Technol & Med, Dept Phys, Space & Atmospher Phys Grp, London SW7 2AZ, England. (author)
- Gasc, S.Univ Bern, Inst Phys, CH-3012 Bern, Switzerland. (author)
- Gombosi, T. I.Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA. (author)
- Gune, H.Belgian Inst Space Aeron BIRA IASB, B-1180 Brussels, Belgium. (author)
- Hansen, K. C.Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA. (author)
- Haessig, M.SW Res Inst, Div Space Sci, San Antonio, TX 78228 USA. (author)
- Jaeckel, A.Univ Bern, Inst Phys, CH-3012 Bern, Switzerland. (author)
- Korth, A.Max Planck Inst Sonnensyst Forsch, D-37077 Gottingen, Germany. (author)
- Le Roy, L.Univ Bern, Inst Phys, CH-3012 Bern, Switzerland. (author)
- Mall, U.Max Planck Inst Sonnensyst Forsch, D-37077 Gottingen, Germany. (author)
- Mandt, K. E.SW Res Inst, Div Space Sci, San Antonio, TX 78228 USA. (author)
- Petrinec, S. M.Lockheed Martin Adv Technol Ctr, Palo Alto, CA 94304 USA. (author)
- Raghuram, S.Univ London Imperial Coll Sci Technol & Med, Dept Phys, Space & Atmospher Phys Grp, London SW7 2AZ, England. (author)
- Reme, H.Univ Toulouse, UPS OMP, IRAP, F-31028 Toulouse, France.;CNRS, IRAP, F-31028 Toulouse 4, France. (author)
- Rinaldi, M.SW Res Inst, Div Space Sci, San Antonio, TX 78228 USA. (author)
- Rubin, M.Univ Bern, Inst Phys, CH-3012 Bern, Switzerland. (author)
- Semon, T.Univ Bern, Inst Phys, CH-3012 Bern, Switzerland. (author)
- Trattner, K. J.Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80303 USA. (author)
- Tzou, C. -Y (author)
- Vigren, ErikUppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen(Swepub:uu)erivi300 (author)
- Waite, J. H.SW Res Inst, Div Space Sci, San Antonio, TX 78228 USA.;Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX 78249 USA. (author)
- Wurz, P.Univ Bern, Inst Phys, CH-3012 Bern, Switzerland. (author)
- SW Res Inst, Div Space Sci, San Antonio, TX 78228 USA.;Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX 78249 USA.Univ Bern, Inst Phys, CH-3012 Bern, Switzerland. (creator_code:org_t)
Related titles
- In:Astronomy and Astrophysics: EDP Sciences5830004-63611432-0746
Internet link
Find in a library
- Astronomy and Astrophysics (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Fuselier, S. A.
- Altwegg, K.
- Balsiger, H.
- Berthelier, J. J ...
- Bieler, A.
- Briois, C.
- show more...
- Broiles, T. W.
- Burch, J. L.
- Calmonte, U.
- Cessateur, G.
- Combi, M.
- De Keyser, J.
- Fiethe, B.
- Galand, M.
- Gasc, S.
- Gombosi, T. I.
- Gune, H.
- Hansen, K. C.
- Haessig, M.
- Jaeckel, A.
- Korth, A.
- Le Roy, L.
- Mall, U.
- Mandt, K. E.
- Petrinec, S. M.
- Raghuram, S.
- Reme, H.
- Rinaldi, M.
- Rubin, M.
- Semon, T.
- Trattner, K. J.
- Tzou, C. -Y
- Vigren, Erik
- Waite, J. H.
- Wurz, P.
- show less...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- and Astronomy Astrop ...
- Articles in the publication
- Astronomy and As ...
- By the university
- Uppsala University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
