C o M e C S  -  Project        

 

Comet and Meteorite Materials - Studied by Chemometrics of Spectroscopic Data

 

Publications - Reports - Output of Project

 

Last change 200920         [ CoMeCS Start ]

 

 

Misc

 

TU Wien Aktuelles 2015-02-09, Florian Aigner: Die Suche nach dem Sternenstaub [TU News German]

Overview poster:            I. Hoffmann, P. Filzmoser, C. Croux, S. Serneels, F.S. Kurnaz, K. Varmuza:

                                     Sparse and robust modeling for high-dimensional data.

                                     50 Years Statistics and Probability Theory at TU Wien, TU Wien, 2017-11-10  [ web ] [ PDF ]

Overview poster:            K. Varmuza, I. Hoffmann, P. Filzmoser:

                                     CoMeCS Project.

                                     50 Years Statistics and Probability Theory at TU Wien, TU Wien, 2017-11-10  [ web ] [ PDF ]

Symposium          Die Kometen-Mission Rosetta. NHM Wien, 2018-07-12. Report & Pictures  |  Lecture (in German)

Festival                Be Open Science & Society Festival (FWF Science Fund), Wien 8-12 Sep 2018 [ Contribution ]

 

 

 

 

Papers

 

Varmuza K., Filzmoser P., Fray N., Cottin H., Merouane S., Stenzel O., Paquette J., Kissel J., Briois C., Baklouti D., Bardyn A., Siljeström S., Silen J., Hilchenbach M.:

J. Chemometrics, 2020, e3218, 1-8 (2020).

Open access: https://doi.org/10.1002/cem.3218

Composition of cometary particles collected during two periods of the Rosetta mission - multivariate evaluation of mass spectral data.

Abstract.

 

Hornung K., Mellado E.M., Paquette J., Fray N., Fischer H., Stenzel O., Baklouti D., Merouane S., Langevin Y., Bardyn A., Engrand C., Cottin H., Thirkell L., Briois C., Modica P., Rynö J., Silen J., Schulz R., Siljeström S., Lehto H., Varmuza K., Koch A., Kissel J., Hilchenbach M.:

Planetary and Space Science, 182, 104758, 1-12 (2020).

DOI: https://doi.org/10.1016/j.pss.2019.104758

Electrical properties of cometary dust particles derived from line shapes of TOF-SIMS spectra measured by the ROSETTA/COSIMA instrument.

Abstract.

 

Isnard R., Bardyn A., Fray N., Briois C., Cottin H., Paquette J., Stenzel O., Alexander C., Baklouti D., Engrand C., Orthous-Daunay F.R., Siljeström S., Varmuza K., Hilchenbach M:

Astronomy & Astrophysics (A&A), 630, A27, 1-10 (2019)

Open access: https://doi.org/10.1051/0004-6361/201834797

H/C elemental ratio of the refractory organic matter in cometary particles of 67P/Churyumov-Gerasimenko.

Abstract.

 

Varmuza K.:

In Engel T., Gasteiger J. (eds), Chemoinformatics - Basic Concepts and Methods,

Wiley-VCH, Weinheim, Germany (2018) p. 399-437. ISBN: 978-3-527-33109-3.

Data Analysis and Data Handling (QSPR/QSAR) - Methods for Multivariate Data Analysis.

Aims | Contents.

 

Edita Rados, Ernst Pittenauer, Johannes Frank, Kurt Varmuza, Günter Allmaier:

Rapid Commun. Mass Spectrom., 32, 649-656 (2018)

https://doi.org/10.1002/rcm.8075

A laser desorption ionization/matrix‐assisted laser desorption ionization target system applicable for three distinct types of instruments (LinTOF/curved field RTOF, LinTOF/RTOF and QqRTOF) with different performance characteristics from three vendors.

Abstract.

 

Kurt Varmuza, Peter Filzmoser, Irene Hoffmann, Jan Walach, Hervé Cottin, Nicolas Fray, Christelle Briois, Paola Modica, Anaďs Bardyn, Johan Silén, Sandra Siljeström, Oliver Stenzel, Jochen Kissel, Martin Hilchenbach:

J. Chemometrics, 32, e3001, 1-13 (2018).

Open access: https://onlinelibrary.wiley.com/doi/epdf/10.1002/cem.3001

Significance of variables for discrimination: Applied to the search of organic ions in mass spectra measured on cometary particles.

Abstract.

 

Oliver J. Stenzel, Martin Hilchenbach, Sihane Merouane, John Paquette, Kurt Varmuza, Cécile Engrand, Franz Brandstätter, Christian Koeberl, Ludovic Ferričre, Peter Filzmoser, Sandra Siljeström:

MNRAS (Monthly Notices of the Royal Astronomical Society), 469, Suppl_2, S492-S505 (2017)

https://doi.org/10.1093/mnras/stx1908

Similarities in element content between comet 67P/Churyumov-Gerasimenko coma dust and selected meteorite samples.

Abstract.

 

Nicolas Fray, Anais Bardyn, Hervé Cottin, Donia Baklouti, Christelle Briois, Cécile Engrand, Henning Fischer, Klaus Hornung, Robin Isnard, Yves Langevin, Harry Lehto, Lena Le Roy, Eva Maria Mellado, Sihane Merouane, Paola Modica, Francois Régis Orthous-Daunay, John Paquette, Jouni Rynö, Rita Schulz, Johan Silén, Sandra Siljeström, Oliver Stenzel, Laurent Thirkell, Kurt Varmuza, Boris Zaprudin, Jochen Kissel, Martin Hilchenbach:

MNRAS (Monthly Notices of the Royal Astronomical Society), 469, S506-S516 (2017)

https://doi.org/10.1093/mnras/stx2002

Nitrogen-to-carbon atomic ratio measured by COSIMA in the particles of comet 67P/Churyumov–Gerasimenko.

Abstract.

 

Anaďs Bardyn, Donia Baklouti, Hervé Cottin, Nicolas Fray, Christelle Briois, John Paquette, Oliver Stenzel, Cécile Engrand, Henning Fischer, Klaus Hornung, Robin Isnard, Yves Langevin, Harry Lehto, Léna Le Roy, Nicolas Ligier, Sihane Merouane, Paola Modica, François-Régis Orthous-Daunay, Jouni Rynö, Rita Schulz, Johan Silén, Laurent Thirkell, Kurt Varmuza, Boris Zaprudin, Jochen Kissel, Martin Hilchenbach:

MNRAS (Monthly Notices of the Royal Astronomical Society), 469, Suppl_2, S712-S722 (2017)

https://doi.org/10.1093/mnras/stx2640

Carbon-rich dust in comet 67P/Churyumov-Gerasimenko measured by COSIMA/Rosetta.

Abstract.

 

Kepplinger D., Filzmoser P., Varmuza K.:

Preprint in arXiv repository: https://arxiv.org/abs/1711.06695 (2017)

Variable selection with genetic algorithms using repeated cross-validation of PLS regression models as fitness measure.

Abstract.

 

Nicolas Fray, Anaďs Bardyn, Hervé Cottin, Kathrin Altwegg, Donia Baklouti, Christelle Briois, Luigi Colangeli, Cécile Engrand, Henning Fischer, Albrecht Glasmachers, Eberhard Grün, Gerhard Haerendel, Hartmut Henkel, Herwig Höfner, Klaus Hornung, Elmar K. Jessberger, Andreas Koch, Harald Krüger, Yves Langevin, Harry Lehto, Kirsi Lehto, Léna Le Roy, Sihane Merouane, Paola Modica, François-Régis Orthous-Daunay, John Paquette, François Raulin, Jouni Rynö, Rita Schulz, Johan Silén, Sandra Siljeström, Wolfgang Steiger, Oliver Stenzel, Thomas Stephan, Laurent Thirkell, Roger Thomas, Klaus Torkar, Kurt Varmuza, Karl-Peter Wanczek, Boris Zaprudin, Jochen Kissel, Martin Hilchenbach:

Nature 528, 72-74 (2016). doi:10.1038/nature19320

High-molecular-weight organic matter in the particles of comet 67P/Churyumov-Gerasimenko.

Abstract. [ Nature-HTML ] [ Nature-PDF ]

 

Hoffmann I., Filzmoser P., Serneels S., Varmuza K.:

J. Chemometrics, 30, 153-162 (2016)

Sparse and robust PLS for binary classification.

Abstract.

 

M. Hilchenbach, J. Kissel, Y. Langevin, C. Briois, H. von Hoerner, A. Koch, R. Schulz, J. Silén, K. Altwegg, L. Colangeli, H. Cottin, C. Engrand, H. Fischer, A. Glasmachers, E. Grün, G. Haerendel, H. Henkel, H. Höfner, K. Hornung, E.K. Jessberger, H. Lehto, K. Lehto, F. Raulin, L. Le Roy, J. Rynö, W. Steiger, T. Stephan, L. Thirkell, R. Thomas, K. Torkar, K. Varmuza, K.P. Wanczek, N. Altobelli, D. Baklouti, A. Bardyn, N. Fray, H. Krüger, N. Ligier, Z. Lin, P. Martin, S. Merouane, F.R. Orthous-Daunay, J. Paquette, C. Revillet, S. Siljeström, O. Stenzel, B. Zaprudin:

The Astrophysical Journal Letters, 816:L32 (2016)

doi:10.3847/2041-8205/816/2/L32

Comet 67P/Churyumov–Gerasimenko: Close-up on dust particle fragments.

Abstract.

 

Silén, J., Cottin, H., Hilchenbach, M., Kissel, J., Lehto, H., Siljeström, S., Varmuza, K.:

Geosci. Instrum. Method. Data Syst., 4, 45-56 (2015). DOI:10.5194/gi-4-45-2015.

COSIMA data analysis using multivariate techniques.

Abstract. PDF.

 

Rita Schulz, Martin Hilchenbach, Yves Langevin, Jochen Kissel, Johan Silen, Christelle Briois, Cecile Engrand, Klaus Hornung, Donia Baklouti, Anaiıs Bardyn, Hervé Cottin, Henning Fischer, Nicolas Fray, Marie Godard, Harry Lehto, Léna Le Roy, Sihane Merouane, François-Régis Orthous-Daunay, John Paquette, Jouni Rynö, Sandra Siljeström, Oliver Stenzel, Laurent Thirkell, Kurt Varmuza, Boris Zaprudin:

Nature 518, 216-218 (2015)

Comet 67P/Churyumov-Gerasimenko sheds dust coat accumulated over the past four years.

Abstract. [Nature-HTML] [Nature-PDF] [TU News German]

 

Varmuza K., Filzmoser P., Hilchenbach M., Krüger H., Silén J.:

Chemom. Intell. Lab. Syst., 138, 64-71 (2014). DOI: http://dx.doi.org/10.1016/j.chemolab.2014.07.011

KNN classification - evaluated by repeated double cross validation: Recognition of minerals relevant for comet dust.

Abstract.

 

Varmuza K., Engrand C., Filzmoser P., Hilchenbach M., Kissel J., Krüger H., Silén J., Trieloff M.:

Anal. Chim. Acta., 705, 48-55 (2011)

Random projection for dimensionality reduction - Applied to time-of-flight secondary ion mass spectrometry data.

Abstract.

 

Kissel J., Altwegg K., Briois C., Clark B.C., Colangeli L., Cottin H., Czempiel S., Eibl J., Engrand C., Fehringer H.M., Feuerbacher B., Fischer H., Fomenkova M., Glasmachers A., Greenberg J.M., Grün E., Haerendel G., Henkel H., Hilchenbach M., von Hoerner H., Höfner H., Hornung K., Jessberger E.K., Koch A., Krüger H., Langevin Y., Martin P., Parigger P., Raulin F., Rüdenauer F., Rynö J., Schmid E.R., Schulz R., Silén J., Steiger W., Stephan T., Thirkell L., Thomas R., Torkar K., Utterback N.G., Varmuza K., Wanczek K.P., Werther W., Zscheeg H.:

In Schulz R., Alexander C., Boehnhardt H., Glassmeier K.H. (editors): ROSETTA: ESA's mission to the origin of the solar system, p. 201-242, Springer, New York (2009)

COSIMA: High resolution time-of-flight secondary ion mass spectrometer for the analysis of cometary dust particles onboard ROSETTA.

Abstract.

 

Kissel J., Altwegg K., Clark B.C., Colangeli L., Cottin H., Czempiel S., Eibl J., Engrand C., Fehringer H.M., Feuerbacher B., Fomenkova M., Glasmachers A., Greenberg J.M., Grün E., Haerendel G., Henkel H., Hilchenbach M., von Hoerner H., Höfner H., Hornung K., Jessberger E.K., Koch A., Krüger H., Langevin Y., Parigger P., Raulin F., Rüdenauer F., Rynö J., Schmid E.R., Schulz R., Silén J., Steiger W., Stephan T., Thirkell L., Thomas R., Torkar K., Utterback N.G., Varmuza K., Wanczek K.P., Werther W., Zscheeg H.:

Space Science Reviews 128, 823-867 (2007). DOI: 10.1007/s11214-006-9083-0

COSIMA – High resolution time-of-flight secondary ion mass spectrometer for the analysis of cometary dust particles onboard ROSETTA.

Abstract.

 

Engrand C., Kissel J., Krueger F.R., Martin P., Silén J., Thirkell L., Thomas R., Varmuza K.:

Rapid Commun. Mass Spectrom. 20, 1361-1368 (2006)

Chemometric evaluation of time-of-flight secondary ion mass spectrometry data of minerals in the frame of future in situ analyses of cometary material by COSIMA onboard ROSETTA.

Abstract.

 

 

Lectures

 

Varmuza K.:

Vienna (Austria), Natural History Museum, 2018-07-12, keynote lecture

Symposium Die Kometen-Mission Rosetta, Österreichische Akademie der Wissenschaften and Naturhistorisches Museum Wien.

Organisch-chemische Substanzen in 67P-Kometenpartikel: Zwischen Hoffnung und Realität.

Report & Pictures  |  Lecture (in German)

 

Rados E.*, Pittenauer E., Frank J., Varmuza K., Allmaier G.:

Vienna (Austria): 2018-02-20

29th Mass Spec Forum Vienna, 2018-02-20 – 22; https://mass-spec-forum-vienna.conf.tuwien.ac.at/home/

A multi-vendor applicable LDI/MALDI target system for instruments with different performance characteristics.

Abstract.

 

Varmuza K.:

Tokyo (Japan): 2015-11-26, plenary lecture

4th Autumn School of Chemoinformatics in Tokyo, The University of Tokyo, 2015-11-25 to 11-26.

Selected aspects of 40 years applied chemometrics.

PDF of the lecture (9 MB). Abstract (PDF, 4 pages). ). Picture report (Tokyo, Kamakura).

 

Hoffmann I.*, Filzmoser P., Serneels S.:

Conferentia Chemometrica 2015 (CC2015), 13 – 16 Sep 2015, Budapest, Hungary (14 Sep 2015)

http://cc2015.ttk.mta.hu/

Sparse and robust PLS for binary classification.

 

Varmuza K.*, Filzmoser P., Hoffmann I., Hilchenbach M., Silén J.:

Conferentia Chemometrica 2015 (CC2015), 13 – 16 Sep 2015, Budapest, Hungary (15 Sep 2015)

http://cc2015.ttk.mta.hu/

A breeze of chemometrics for evaluation of mass spectra - measured at comet dust particles (on-board of Rosetta) and at meteorite samples.

 

 

Posters

 

Varmuza K.:

Vienna (Austria): Austrian Chemistry Days 2022, 2022-09-20 – 22

Extraterrestrial material from a comet and from meteorites -  analyzed by TOF-SIMS and data evaluated by machine learning approaches.

PDF file | Abstract

 

Varmuza K.*, Rados E., Herzig C., Limbeck A., Pittenauer E., Allmaier G., Filzmoser P.:

Vienna (Austria): 31st Mass Spec Forum Vienna, 2020-02-25 – 26; http://mass-spec-forum-vienna.conf.tuwien.ac.at

ICP-MS of meteorite samples: Chemometric evaluation of diversity and discrimination.

PDF file

 

Isnard R., Bardyn A., Briois C.*, Fray N., Baklouti D., Cottin H., Engrand C., Fischer H., Gardner E., Hornung K., Langevin Y., Lehto H., Le Roy L., Ligier N., Merouane S., Modica P., Orthous-Daunay F.R., Paquette J., Rynö J., Schulz R., Silén J., Siljeström S., Stenzel O., Thirkell L., Varmuza K., Zaprudin B., Kissel J., Hilchenbach M.:

19th EANA Astrobiology Conference (EANA 2019), 3 - 6 Sept. 2019, Orléans, France  

67P/CG Dust particles composition as measured by the COSIMA/Rosetta mass spectrometer.

 

Varmuza K.*, Filzmoser P., Fray N., Cottin H., Merouane S., Stenzel O., Kissel J., Briois C., Baklouti D., Bardyn A., Siljeström S., Silén J., Hilchenbach M.:

Conferentia Chemometrica 2019-09-08 – 12, Karcag, Hungary, http://cc2019.ttk.mta.hu/

Composition of cometary particles versus distance to sun during sample collection - based on multivariate evaluation of mass spectral data (Rosetta/COSIMA).

PDF file

 

Varmuza K.*, Filzmoser P., Hilchenbach M., Kissel J., Stenzel O., Merouane S., Paquette J., Hornung K., Cottin H., Fray N., Isnard R., Engrand C., Briois C., Thirkell L., Modica M., Langevin Y., Baklouti D., Bardyn A., Siljeström S., Silén J., Rynö J., Lehto H., Schulz R.:

20. Tagung Festkörperanalytik (FKA20, Conference on Solid State Analysis), 1 - 3 July 2019, Vienna, Austria

Cometary particle surfaces - characterized by chemometric evaluation of secondary ion mass spectra.

PDF file with 2 pages A4.

 

Varmuza K.*, Filzmoser P., Ortner I., Hilchenbach M., Kissel J., Merouane S., Paquette J., Stenzel O., Engrand C., Cottin H., Fray N., Isnard R., Briois C., Thirkell L., Baklouti D., Bardyn A., Siljeström S.,  Schulz R., Silén J., Brandstätter F., Ferričre L., Koeberl C.:

16th Scandinavian Symposium on Chemometrics (SSC16), 17 – 20 June 2019, Nesbru / Oslo, Norway [VKP:198]

One-class classification for the recognition of relevant measurements - applied to mass spectra from cometary and meteoritic particles.

PDF file with 8 pages.

 

Rados E.*, Pittenauer E., Frank J., Varmuza K., Allmaier G.:

ANAKON 2019, Gesellschaft Deutscher Chemiker, 25 - 28 March 2019, Münster, Germany [VKP:197]

Analysis of meteorites and meteorite-like materials (terrestrial forsterite) doped with small organic molecules by LDI-MS using three different analysers and SIMS.

PDF file with 12 pages.

 

Rados E.*, Pittenauer E., Frank J., Varmuza K., Allmaier G.:

Florence (Italy): 22nd International Mass Spectrometry Conference 2018 (IMSC 2018), 2018-08-26 - 31

A multi-vendor applicable target system for (MA)LDI instruments with distinct performance characteristics for the analysis of small organic molecules related to carbonaceous chondrites.

PDF file A4. Abstract. Picture from Conference.

 

Varmuza K.*, Filzmoser P., Hoffmann I., Hilchenbach M., Kissel J., Merouane S., Paquette J., Stenzel O., Cottin H., Fray N., Isnard R., Briois C., Modica P., Thirkell L., Engrand C., Baklouti D., Langevin Y., Bardyn A., Hornung K., Siljeström S., Rynö J., Silén J., Schulz R., Brandstätter F., Ferričre L., Koeberl C.:

Vienna (Austria): 29th Mass Spec Forum Vienna, 2018-02-20 – 22; https://mass-spec-forum-vienna.conf.tuwien.ac.at/home/

Mass spectrometry near comet 67P (Rosetta/COSIMA).

PDF file A4. Abstract.

 

Varmuza K.*, Filzmoser P., Hoffmann I., Walach J., Cottin H., Fray N., Briois C., Silén J., Stenzel O., Kissel J., Hilchenbach M.:

Gyöngyös-Farkasmály (Hungary): Conferentia Chemometrica 2017, 3 - 6 Sep 2017, http://cc2017.ttk.mta.hu

Significance of variables for discrimination - applied to the search of organic ions in mass spectra measured on cometary particles.

PDF file (2.4 MB, 11 pages, incl. abstract); PDF file A4.

 

Varmuza K.*, Baklouti D., Bardyn A., Cottin H., Engrand C., Filzmoser P., Fray N., Hilchenbach M., Hoffmann I., Kissel J., Modica P., Silén J., Siljeström S., Stenzel O.:

Naantali (Finland): 15th Scandinavian Symposium on Chemometrics (SSC15), 2017-06-19 – 22, http://ssc15.metropolia.fi/

Comet dust composition explored by chemometric methods using mass spectral data from COSIMA/ROSETTA.

PDF file (5.5 MB, 9 pages, incl. abstract); PDF file A4.

 

Varmuza K.*, Brandstätter F., Cottin H., Engrand C., Ferričre L., Filzmoser P., Fray N., Hilchenbach M., Hoffmann I., Kissel J., Koeberl C., Modica P., Paquette J., Stenzel O.:

Tübingen (Germany): ANAKON 2017, Gesellschaft Deutscher Chemiker, 2017-04-03 - 06

Comet and meteorite particle surface characterization by multivariate data analyses using TOF‐SIMS data from COSIMA/Rosetta.

PDF (1.8 MB)

 

O.J. Stenzel*, J. Paquette, M. Hilchenbach, J. Kissel, Y. Langevin, C. Briois, A. Koch, R. Schulz, J. Silén, N. Altobelli, K. Altwegg, L. Colangeli, H. Cottin, D. Baklouti, A. Bardyn, C. Engrand, H. Fischer, N. Fray, A. Glasmachers, E. Grün, G. Haerendel, H. Henkel, H. Höfner, K. Hornung, E.K. Jessberger, H. Lehto, K. Lehto, N. Ligier, Z. Lin, P. Martin, S. Merouane, F.R. Orthous-Daunay, F. Raulin, C. Revillet, L. Le Roy, J. Rynö, S. Siljeström, W. Steiger, T. Stephan, L. Thirkell, R. Thomas, K. Torkar, K. Varmuza, K.P. Wanczek, B. Zaprudin:

Leiden (The Netherlands): 50th ESLAB Symposium (European Space Agency, ESA), From Giotto to Rosetta, 2016-03-14 – 18

Alkali metals in cometary particles – what is the chemical context?

Poster/abstract/info.

 

Varmuza K.*, Hoffmann I., Filzmoser P., Brandstätter F., Engrand C., Ferričre L., Hilchenbach M., Koeberl C., Paquette J., Silén J., Stenzel O.:

Vienna (Austria): Conference on Solid State Analytics (18. Tagung Festkörperanalytik - FKA18), 2015-07-06 – 07-08

Recognition of relevant spectra in TOF-SIMS measurements on meteorite and comet grain samples by a chemometric approach.

PDF (2.8 MB) of poster.

 

Varmuza K.*, Filzmoser P., Hilchenbach M., Hoffmann I., Kissel J., Silén J.:

Chia, Sardinia (Italy): 14th Scandinavian Symposium on Chemometrics (SSC14), 2015-06-14 to 06-17

Selected chemometric approaches for mass spectra from comet dust grains (Rosetta).

PDF: see similar poster listed above (Vienna).

 

Stenzel O.J.*, Varmuza K., Engrand C., Ferričre L., Brandstätter F., Koeberl C., Filzmoser P., Paquette J., Hilchenbach M.:

The Woodlands, Texas (USA): 46th Lunar and Planetary Science Conference (LPSC), 2015-03-16 to 03-20

Using meteorite samples as a test for correlation based analysis of SIMS data from cometary grains.

PDF (2.2 MB) of poster.

 

C. Engrand*, D. Baklouti, C. Briois, H. Cottin, H. Fischer, N. Fray, M. Godard, H. Henkel, M. Hilchenbach, K. Hornung, J. Kissel, A. Koch, Y. Langevin, H. Lehto, S. Merouane, F. R. Orthous-Daunay, J. Rynö, R. Schulz, J. Silén, S. Siljeström, T. Stephan, L. Thirkell, K. Varmuza:

San Francisco, CA (USA), 2014 AGU Fall Meeting of the American Geophysical Union, 2014-12-15 to 12-19

On the inorganic composition of cometary dust from comet 67P/Churyumov-Gerasimenko, as seen by COSIMA onboard Rosetta.

 

M. Hilchenbach, J. Kissel, C. Briois, H. von Hoerner, Y. Langevin, R. Schulz*, J. Silén, K. Altwegg, L. Colangeli, H. Cottin, C. Engrand, A. Glasmachers, E. Grün, G. Haerendel, H. Henkel, H. Höfner, K. Hornung, E. K. Jessberger, A. Koch, H. Lehto, K. Lehto, F. Raulin, L. Le Roy, J. Rynö, W. Steiger, T. Stephan, L. Thirkell, R. Thomas, K. Torkar, K. Varmuza, K. P. Wanczek:

Tucson, Arizona (USA): 46th Annual Meeting of the Division for Planetary Sciences of the American Astronomical Society (DPS-2014),

2014-11-09 to 11-14

COSIMA - Cometary Dust Analysis in the inner coma of Comet 67P/Churyumov-Gerasimenko.

 

Stenzel O.*, Varmuza K., Engrand C., Ferričre L., Brandstätter F., Koeberl C., Filzmoser P., Hilchenbach M.:

Helsinki (Finland): ACM 2014 (Asteroids, Comets, Meteors), 2014-06-30 to 07-04

Characterisation of meteoritic samples with the Rosetta Cosima TOF-SIMS laboratory reference model - a covariance approach.

PDF (1.7 MB) of poster.

 

Hilchenbach M.*, Briois C., Cottin H., Engrand C., Hornung K., Kissel J., Krüger H., Lehto H.J., Lehto K., Silen J., Thirkell L., Varmuza K.:

The Woodlands, Texas (USA): 44th Lunar and Planetary Science Conference (LPSC), 2013-03-18 to 03-22

Laboratory secondary ion mass spectra of cometary analog matter.

PDF (1.8 MB) of poster.

 

K. Varmuza*, P. Filzmoser, M. Hilchenbach, J. Kissel, H. Krüger, J. Silén:

Antwerp (Belgium): 12th International Conference on Chemometrics in Analytical Chemistry - CAC 2010, 2010-10-18 to 10-21

Random projection for dimensionality reduction - applied to TOF-SIMS data.

PDF (201 kB) of poster.

 

 

Theses

 

Edita Rados

Mass spectrometry of organic matter in carbonaceous chondrites.

PhD thesis, in preparation, 2020, TU Wien

 

Carim El-Cheschin:

Non-negative matrix factorization.

Diploma thesis, 2018, TU Wien

 

Irene Hoffmann:

Sparse and robust modeling for high-dimensional data.

PhD thesis, 2017, TU Wien [ Abstract & contents ]

 

Anna Sofia Kircher:

Random forest for unbalanced multiple-class classification.

Diploma thesis, 2017, TU Wien

 

Milica Petrovic:

Multivariate evaluation of mass spectra for characterizing the chemical composition of comet particles.

Bachelor thesis, 2015, TU Wien

 

Roscoe Baston:

Analysis of spectral data from meteorite samples using PCA and KNN.

Bachelor thesis, 2015, TU Wien

 

 

Reports

 

Chitarra O., Hilchenbach M., Merouane S.: Investigation of Antarctic micrometeorites by the comparison with carbonaceous chondrites and cometary particles using Raman spectroscopy, infrared spectroscopy and mass spectrometry (report), Max Planck Institute for Solar System Research, Göttingen, Germany, 2018. PDF (3.2 MB).

 

 

 

[ CoMeCS Start ]      220920