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  • Fayolle, E. C.Harvard-Smithsonian Center for Astrophysics (author)

Protostellar and cometary detections of organohalogens

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • 2017-10-02
  • Springer Science and Business Media LLC,2017

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:a6786e31-1d34-4048-802c-73b518b1372c
  • https://research.chalmers.se/publication/253742URI
  • https://doi.org/10.1038/s41550-017-0237-7DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Organohalogens, a class of molecules that contain at least one halogen atom bonded to carbon, are abundant on the Earth where they are mainly produced through industrial and biological processes(1). Consequently, they have been proposed as biomarkers in the search for life on exoplanets(2). Simple halogen hydrides have been detected in interstellar sources and in comets, but the presence and possible incorporation of more complex halogen-containing molecules such as organohalogens into planet-forming regions is uncertain(3,4). Here we report the interstellar detection of two isotopologues of the organohalogen CH3Cl and put some constraints on CH3F in the gas surrounding the low-mass protostar IRAS 16293-2422, using the Atacama Large Millimeter/submillimeter Array (ALMA). We also find CH3Cl in the coma of comet 67P/Churyumov-Gerasimenko (67P/C-G) by using the Rosetta Orbiter Spectrometer for Ion and Neutral Analysis (ROSINA) instrument. The detections reveal an efficient pre-planetary formation pathway of organohalogens. Cometary impacts may deliver these species to young planets and should thus be included as a potential abiotical production source when interpreting future organohalogen detections in atmospheres of rocky planets.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Öberg, K. I.Harvard-Smithsonian Center for Astrophysics (author)
  • Jorgensen, J. K.Köpenhamns universitet,University of Copenhagen (author)
  • Altwegg, KathrinUniversität Bern,University of Bern,Köpenhamns universitet,University of Copenhagen (author)
  • Calcutt, Hannah,1988Köpenhamns universitet,University of Copenhagen(Swepub:cth)calcutt (author)
  • Muller, Holger S.P.Universität zu Köln,University of Cologne (author)
  • Rubin, M.Universität Bern,University of Bern (author)
  • van der Wiel, M. H. D.Netherlands Institute for Radio Astronomy (ASTRON) (author)
  • Bjerkeli, Per,1977Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)gu97pebj (author)
  • Bourke, T. L. (author)
  • Coutens, A.University College London (UCL) (author)
  • van Dishoeck, E. F.Universiteit Leiden (UL),Leiden University (UL),Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG) (author)
  • Drozdovskaya, M. N.Universität Bern,University of Bern (author)
  • Garrod, R. T.University of Virginia (author)
  • Ligterink, N. F. W.Universiteit Leiden (UL),Leiden University (UL) (author)
  • Persson, Magnus V.,1983Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)magnpe (author)
  • Wampfler, S. F.Universität Bern,University of Bern (author)
  • Balsiger, HansUniversität Bern,University of Bern (author)
  • Berthelier, Jean JacquesLaboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) (author)
  • De-Keyser, JohanBelgian Institute for Space Aeronomy (BIRA-IASB) (author)
  • Fiethe, BjörnTechnische Universität Braunschweig (author)
  • Fuselier, Stephen ASouthwest Research Institute (author)
  • Gasc, SébastienUniversität Bern,University of Bern (author)
  • Gombosi, TamásUniversity of Michigan (author)
  • Sémon, ThierryUniversität Bern,University of Bern (author)
  • Tzou, ChiayuUniversität Bern,University of Bern (author)
  • Harvard-Smithsonian Center for AstrophysicsKöpenhamns universitet (creator_code:org_t)

Related titles

  • In:Nature Astronomy: Springer Science and Business Media LLC1:10, s. 703-7082397-3366

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