Presentations

Invited Talks / Colloquia / Summer Schools

2024

Cold and Controlled Molecules and Ions (CCMI), Vienna (Austria), September 2-6, 2024
"tbd", view website.

Huygens Colloquium, Faculty of Science, Radboud University, Nijmegen (The Netherlands), May 13, 2024
"tbd"

2023

Colloquium Physical Chemistry, University of Basel (Switzerland), December 13, 2023
"Cryogenic infrared action spectroscopy as a tool for probing gas-phase dynamics"

799. Wilhelm and Else Heraeus Seminar on "Laboratory Astrophysics in the Age of ALMA and JWST, Heidelberg (Germany), September 18-21, 2023
"Infrared action spectroscopy as a tool for probing gas-phase dynamics", view website.

IPTC-Kolloquium, Universität Würzburg (Germany), July 6, 2023
"Cryogenic infrared spectroscopy of molecular ions relevant in astrochemistry: From fingerprinting to isomerization, reactivity, and vibronic coupling", view website.

76nd International Symposium on Molecular Spectroscopy (ISMS), University of Illinois at Urbana-Champaign (USA), June 19-23 , 2023
Invited talk Mini-Symposium Spectroscopy with Cryogenic Ion Traps "Spectroscopic probing of low-temperature ion-molecule reactions", view website.

Astrochemistry at high resolution - Faraday Discussions , Baltimore (US), May 31 - June 2, 2023
"Fingerprinting fragments of fragile interstellar molecules: Dissociation chemistry of pyridine and benzonitrile revealed by infrared spectroscopy and theory", view website

LaserLab Europe Talk (online) 29 March, 2023
“Complex molecules in stellar nurseries”, view website. View on YouTube.

IMM Theme 1 Colloquium, Radboud University, Nijmegen (Netherlands) 7 February, 2023
“PAH fragmentation and formation processes probed by infrared action spectroscopy”, view website.

2022

From clouds to planets II - The astrochemical link , Berlin (Germany), October 3 - 7, 2022 - postponed from 2020
"Spectroscopic evidence of low-temperature polycyclic aromatic hydrocarbon formation", view website

The lifecycle of cosmic PAHs, Aarhus (Denmark), September 5-9, 2022 - postponed from 2020
"Vibrational spectroscopy of cold PAH ions using FELIX", view website

COSPAR 2020 Scientific Event , Athens (Greece, online), July 16-24 , 2022
"A Cryogenic Ion Trap Beamline at FELIX for Astrochemical Studies",  view website

36th International Symposium on Free Radicals, Stockholm (Sweden), July 3– 8, 2022 - postponed from 2021 
"Cryogenic infrared spectroscopy of radical cations relevant in astrochemistry: isomerization, reactivity, and vibronic coupling" , view website

2021

CLIO-FEL Workshop, Orsay (France,  online), May 28, 2021
"A Cryogenic Ion Trap Beamline at FELIX for Astrochemical Studies", view website 

MD-GAS WG1 & WG2 Meeting (online), March 15 - 19, 2021
"Low Temperature Kinetics of Interstellar Ions Unraveled by Infrared Action Spectroscopy", view website

Spectroscopy and Dynamics (SDG) Meeting (UK, online), January 11-11, 2021
"Spectroscopy and Low Temperature Kinetics of Interstellar Ions Using FELIX", view website

2020

Chemistry Seminar, University of Manitoba (Canada, online), November 24, 2020
"Spectroscopy and Low Temperature Kinetics of Interstellar Ions"

Group Seminar, Stanton Research Group (Chemistry – Quantum Theory, online), University of Florida (US), November 2, 2020
"Cold ion action spectroscopy using FELIX – from small hydrocarbons to interstellar PAHs"

XXII. Symposium on Atomic, Cluster and Surface Physics - SASP2020, St. Moritz, (Switzerland), February 02-07, 2020
"Unravelling isomers of reactive ionic intermediates", view website. and report.

Physikalisch-Chemisches Kolloquium, University Marburg (Germany), January 23, 2020
"Fingerprinting molecules for astronomy - spectroscopy in cryogenic ion trapss"

2019

43rd Annual Meeting NNV AMO Lunteren (Netherlands), October 8 & 9, 2019
"Unravelling isomers of reactive ionic intermediates using FELIX", view website.

Future Observations, Techniques and Methodology in Astrochemistry - Annual Meeting of the Astrophysical Chemistry Group RSC/RAS, Queen Mary University London (UK), June 24 & 25, 2019
"Unraveling the Isomers of Reactive Ionic Intermediates Using FELIX", view website.

2019 Gaseous Ions: Structures, Energetics, and Reactions Gordon Research Conference, Ventura (USA), February 17-22 , 2019
"Action Spectroscopy of Reactive Cations in a Cryogenic Ion Trap - Isomer Quantification using Saturation Depletion", view website.

2018

DKA ALM Summerschool, Obergurgl (Austria), September 17-21 , 2018
"Laboratory Astrophysics - High Resolution Molecular Spectroscopy", view website.

2018 Fall American Chemical Society National Meeting, Symposium "New Spectroscopic Techniques for Astrochemistry", Boston (USA), August 19-23 , 2018
"Rotational and vibrational action spectroscopy of reactive hydrocarbon cations: Intermediates in interstellar carbon chemistry", view website.

73nd International Symposium on Molecular Spectroscopy (ISMS), University of Illinois at Urbana-Champaign (USA), June 18-22 , 2018
"Plenary talk: Vibrational and rotational spectroscopy in cryogenic ion traps ", view website.

Astrophysics Colloquium, Radboud University Nijmegen (Netherlands), April 24, 2018
"Fingerprinting molecular tracers for astrophysics", view website.

IMM Colloquium, Radboud University Nijmegen (Netherlands), February 27, 2018
"Fingerprinting molecules for astronomy - spectroscopy in cryogenic ion traps", view website.

Workshop "Applications of IR Free-Electron Lasers: Latest Developments and Future Directions, Ringberg Castle (Germany), January 17-20, 2018
"Rotational and vibrational spectroscopy of reactive hydrocarbon cations", view website.

2017

Laboratory Astrophysics Workshop 2017, Bonn (Germany), November 29 - December 1, 2017
"Rotational and vibrational spectroscopy of reactive hydrocarbon cations - intermediates in interstellar carbon chemistry", view website.

FELIX User Meeting 2017, Nijmegen (The Netherlands), November 1-3, 2017
"Fingerprinting molecular tracers for astrophysics", view website.

25th Colloquium on High Resolution Molecular Spectroscopy, Helsinki (Finland), August 20-25, 2017
"Rotational and vibrational spectroscopy in cryogenic ion traps: fingerprinting molecular tracers for astrophysics", view website.

XXVII. International Symposium on Molecular Beams (ISMB) , Concert Hall De Vereeniging, Nijmegen (Netherlands), June 25-30, 2017
"Spectroscopy of Hydrocarbon Cations in Cryogenic Ion Traps", view website.

2017 Cold Molecular Ions Workshop "Spectroscopy, Danymics and Applications of Cold Molecular Ions" , Haute Savoie (France), May 28 - June 2, 2017
"Vibrational and rotational action spectroscopy of cold molecular ions relevant for astrochemistry", view website.

Faraday Joint Interest Group Conference 2017, Warwick (UK), April 11-13, 2017
"Hydrocarbon Radical Cations as Intermediates in Interstellar Carbon Chemistry", view website.

COST Action CM1401 "Our Astrochemical History" General Meeting , Faro (Portugal), January 16-20, 2017
"Spectroscopy in Cryogenic Ion Traps on Molecular Tracers for Astrophysics", view website.

2016

European Conference on Laboratory Astrophysics (ECLA2016) - "Gas on the Rocks", CSIC, Madrid (Spain), November 21-25, 2016
"High-Resolution Spectroscopy of Cold Molecular Ions", view website.

Isotopic Fractionation in the Universe, Florence (Italy), October 10-13, 2016
"Review on laboratory studies on isotopic fractionation:
From gas-phase isotope exchange reactions to isotopomer spectroscopy (and back)", view website.

Cold and controlled molecules and ions (CCMI), Weizmann Institute of Science, Rehovot (Israel), March 13-17, 2016
"High-Resolution Spectroscopy of Cold Molecular Ions", view website.

Focus Session "Molecular Astrophysics", Dutch Physics Conference (Physics@FOMVeldhoven), Veldhoven (The Netherlands), January 19-20, 2016
"
Hydrocarbon Radical Cations as Intermediates in Interstellar Carbon Chemistry", view website.

2015

From clouds to protoplanetary disks: the astrochemical link, October 5 - 8, 2015
"High-Resolution Action Spectroscopy of Cold Molecular Ions", view website.

Heidelberg Laboratory Astrophysics Workshop 2015, Heidelberg (Germany) October 1 - 2, 2015
"Action Spectroscopy in Cryogenic Ion Traps", view website.

The 6th Zermatt ISM-Symposium, Zermatt (Switzerland) September 7 - 11, 2015
"Review Talk: Laboratory Astrophysics", view website.

Defining New Directions in Cold Chemical Physics, Boulder, Colorado (USA), July 8 - 10, 2015
"Rotational State-Selective Attachment of Helium to Cold, Stored Molecular Ions", view website

The XVIIIth Symposium and School on High Resolution Molecular Spectroscopy, Tomsk (Russia), June 30 - July 4, 2015
"Rotational Action Spectroscopy in Cryogenic Ion Traps", view website

Institute for Spectroscopy, Russian Academy of Science (RAS), Troitsk (Russia), June 29, 2015
"Action Spectroscopy in Cryogenic Ion Traps", view
website

Molecular Physics Seminar, CFEL & MPSD, Hamburg (Germany), June 1, 2015
"Action Spectroscopy in Cryogenic Ion Traps", view website

DPG Frühjahrstagung, Heidelberg (Germany), March 23 - 27, 2015
"State-selective attachment of helium atoms to stored, cold molecular ions", view website, and abstract.

2014

Bothe Colloquium, MPIK Heidelberg (Germany), December 10, 2014
"Action Spectroscopy in Cryogenic Ion Traps", view website

ICAMDATA 2014, Jena (Germany), September 21 - 25, 2014
"Spectroscopy of Molecular Ions for Astrophysics", view website

2013

Laboratory Astrophysics Workshop 2013, Kassel (Germany), September 30 - October 2, 2013
"Spectroscopy in ion traps at 4K", view website

2012

ISM-SPP School: The Physics of the Interstellar Medium, Freising (Germany), October 1-5, 2012
"Spectroscopy of interstellar molecules", view website

UK-Germany National Astronomy Meeting NAM 2012, Manchester (UK), March 27-30, 2012
"Laboratory Investigations of Carbonaceous Molecules", view website

2011

Negative Ions and Molecules in Astrophysics, Gothenburg (Sweden), August 22-24, 2011
"Laboratory Astrophysics: Or, Finding an Anion in a Haystack", Part I, Part II, view website

Terahertz Science and Technology - The Castle Meeting, Rauischholzhausen (Germany), July 3-6, 2011
"Lifting the veil - THz observations in the universe and laboratory"

2010

ECAMP10, Salamanca (Spain), July 4-9, 2010
"Laboratory and Astronomical Detection of Carbon Chain Anions", view website

COST-The Chemical Cosmos, Workgroup Meeting, Boppard (Germany), May 9-12, 2010
"Spectroscopy of Molecular Anions", view website

pre 2010

433. WE-Heraeus-Seminar, ,,Anions - from the lab to the stars", Bad Honnef (Germany), June 7-11, 2009
"Laboratory and Astronomical Detection of Carbon Chain Anions", view website

PRAHA 2008, 20th International Conference on High Resolution Molecular Spectroscopy, Prague (Czech Republic), September 2-6, 2008
"Molecular Anions in the Laboratory and in Space"

10th International HITRAN Conference, Keynote Talk, Cambridge (USA), June 22-24, 2008
"High Resolution Spectroscopy and Astronomical Detection of Molecular Anions"

EPFL Lausanne (Switzerland), Group Seminar Prof. T. Rizzo, April 25, 2008
"The Search for Molecules in Space: From Biomolecules to Carbon Chain Anions"

Fritz-Haber-Institut Berlin (Germany), Group Seminar Prof. G. Meijer, April 15, 2008
"The Search for Molecules in Space: From Biomolecules to Carbon Chain Anions"

Center for Astrophysics, Cambridge (USA), RG Lunchtalk, March 7, 2008
"Where have all the electrons gone? Laboratory and astronomical detection of molecular anions"

University of Freiburg (Germany), Group Seminar AG Weidemüller, December 14, 2007
"Negatively Charged Molecules in Space"

University of Aarhus (Denmark), Physics Colloquium, December 11, 2007
"Negatively Charged Molecules in Space"

University of Fribourg (Switzerland), Chemistry Colloquium, December 7, 2007
"The Laboratory and Astronomical Detection of Molecular Anions"

University of Basel (Switzerland), Physical Chemistry Colloquium, December 5, 2007
" Molecular Anions in the Laboratory and in Space"

29th International Symposium on Free Radicals, Big Sky, Montana (U.S.A.), August 12-17, 2007
"Molecular Anions in the Laboratory and in Space"

Technische Universität Berlin (Germany), Astrophysical Colloquium, April 24, 2003
„Hochauflösende Laborspektroskopie: Die Suche nach neuen interstellaren Molekülen“, view website.

 

Conference Contributions (Presenter)

31. S. Banhatti, S. Schlemmer, A. Simon, H. Leboucher, C. Joblin, G. Wenzel, D. Rap, B. Redlich, S. Brünken
"Formation of the acenaphtylene cation as a common C2H2-loss fragment in dissociative ionization of the PAH isomers anthracene and phenanthrene"
Talk, 76nd International Symposium on Molecular Spectroscopy (ISMS), University of Illinois at Urbana-Champaign (USA), June 19-23 , 2023

30. S. Brünken, F. Lipparini, J. Gauss, A. Stoffels, B. Redlich, J. Oomens, P. Jusko, S. Schlemmer
"Hydrocarbon Radical Cations as Intermediates in Interstellar Carbon Chemistry"
Poster, The Physics of the ISM - 6 years of ISM-SPP 1573: What have we learned, Cologne, Germany, February 13-17, 2016

29. J. Harju, O. Sipilä, S. Brünken, S. Schlemmer, P. Caselli, M. Juvela, K. M. Menten, J. Stutzki, O. Asvany, T. Kaminski
"Detection of interstellar ortho-D2H+ with SOFIA"
Talk, AG-Tagung 2016 SOFIA splinter meeting, Bochum, Germany, September 15th, 2016

28. S. Brünken, F. Lipparini, J. Gauss, A. Stoffels, B. Redlich, L. van der Meer, G. Berden, J. Oomens, S. Schlemmer
"INFRARED PREDISSOCIATION SPECTROSCOPY OF THE HYDROCARBON CATIONS C3H+, C2H+, AND C3H2+"
Talk, The 71st International Symposium on Molecular Spectroscopy (ISMS), Champaign-Urbana, Illinois (U.S.A.), June 20-24, 2016

27. S. Brünken, L. Kluge, A. Stoffels, O. Asvany, S. Schlemmer
"HIGH-RESOLUTION ROTATIONAL SPECTROSCOPY IN A CRYOGENIC 22-POLE ION TRAP"
Talk, The 23rd International Conference on High Resolution Molecular Spectroscopy, Bologna, (Italy), September 2-6, 2014

26. S. Brünken, H.S.P. Müller, T. Kaminski, K.M. Menten, C.A. Gottlieb, N.A. Patel, K.H. Young, , M.C. McCarthy, J.M. Winters, L. Decin
"Radio Interferometric Detection of TiO and TiO2 in VY Canis Majoris: "Seeds" of Inorganic Dust Formation"
Talk, International Symposium on Molecular Spectroscopy, Columbus, Ohio (U.S.A.), June 17-21, 2013

25. S. Brünken, L. Kluge, S. Fanghänel, A. Potapov, O. Asvany, S. Schlemmer, J. Oomens, B. Redlich, A. Stoffels
"FELion: A Cryogenic Ion Trap Apparatus for Spectroscopic Studies with FELIX"
Talk, International Symposium on Molecular Spectroscopy, Columbus, Ohio (U.S.A.), June 17-21, 2013

24. S. Brünken, C.A. Gottlieb, M.C. McCarthy, P. Thaddeus, A. Belloche, K. Menten
"Laboratory and Astronomical Detection of Cyanic Acid, HOCN"
Talk, International Symposium on Molecular Spectroscopy, Columbus, Ohio (U.S.A.), June 15-20, 2008

23. S. Brünken, Z. Yu, C.A. Gottlieb, M.C. McCarthy, P. Thaddeus, A. Belloche, K. Menten
"Laboratory and Tentantive Astronomical Detection of Thiocyanic Acid, HSCN"
Talk, International Symposium on Molecular Spectroscopy, Columbus, Ohio (U.S.A.), June 15-20, 2008

22. S. Brünken, C.A. Gottlieb, H. Gupta, M.C. McCarthy, P. Thaddeus
"The Laboratory and Astronomical Detection of Molecular Anions"
Poster, The Molecular Universe: an International Meeting on Physics and Chemistry of the Interstellar Medium, Arcachon (France), May 5-8, 2008

21. S. Brünken, C.A. Gottlieb, H. Gupta, M.C. McCarthy, P. Thaddeus,
Rotational Spectra of the Carbon Chain Anions C2nH- (n=1, 2, 4) “,
Talk, International Symposium on Molecular Spectroscopy, Columbus, Ohio (U.S.A.), June 18-22, 2007

20. S. Brünken, H.S.P. Müller, M.C. McCarthy, P. Thaddeus,
„The rotational spectrum of titanium dioxide, TiO2, a candidate for astronomical detection “,
Poster, Molecules in Space and Laboratory , Paris (France), May 14– 18, 2007

19. Z. Yu, S. Brünken, M.C. McCarthy, P. Thaddeus,
„Laboratory detection of a new molecule: thiocyanic acid (HSCN)“,
Poster, 19th International Conference on High Resolution Molecular Spectroscopy, Prague (Czech Republic), August 19 – September 2, 2006

18. S. Brünken, H.S.P. Müller, C.P. Endres, T.F. Giesen, H. Mäder, J.C. Pearson, B.J. Drouin,
„Measurements and Analysis of High Resolution Terahertz Spectra of HDO and D2O“,
Poster, 9 th International HITRAN Conference , Cambridge (U.S.A.), June 26 - 28, 2006

17. S. Brünken, M.C. McCarthy, P. Thaddeus, R.D. Brown, P.D. Godfrey,
The Rotational Spectra of Nucleobases“,
Talk, Complex Molecules in Space, Present status and prospects with ALMA , Fuglsocentret (Denmark), May 8-11, 2006

16. S. Brünken, H.S.P. Müller, C.P. Endres, T.F. Giesen, H. Mäder, J.C. Pearson, B.J. Drouin,
„Measurements and Analysis of High Resolution Terahertz Spectra of Water“,
Poster, 19. Colloquium High Resolution Molecular Spectroscopy , Salamanca ( Spain ), September 11 – 16, 2005

15. S. Brünken, H.S.P. Müller, C.P. Endres, T.F. Giesen, H. Mäder, J.C. Pearson, B.J. Drouin,
„Measurements and Analysis of High Resolution Terahertz Spectra of Water“,
Poster, IAU Symposium No. 231 , Asilomar (U.S.A.), August 28 – September 2, 2005

14. H.S.P. Müller, S. Brünken, F. Lewen, H. Habara, und G. Winnewisser,
“Accurate Rotational Spectroscopy of O 2 3 S g and 1 ? g and of SO 2 , v 2 = 0, 1, up to 2 THz”,
Poster, 18th International Conference on High Resolution Molecular Spectroscopy, Prague ( Czech Republic ), September 8-12, 2004

13. H. Spahn, F. Lewen, S. Brünken , T. Giesen, G. Winnewisser, und A. Fayt,
“High Resolution Measurement of Pure Rotational and Vibrational Excited States of HC 3 N”,
Poster, 18th International Conference on High Resolution Molecular Spectroscopy, , Prague (Czech Republic), September 8-12, 2004

12. S. Brünken, E.A. Michael, F. Lewen, H.S.P. Müller, T. Giesen, G. Winnewisser und H. Ozeki
" Pure Rotational Transitions of Methylene (CH2) in the Terahertz Region ",
Talk, International Symposium on Molecular Spectroscopy, Columbus, Ohio (U.S.A.), June 21-25, 2004

11. S. Brünken, V. Ahrens, U. Fuchs, S. Thorwirth, F. Lewen, G. Winnewisser, M. Simeckova und Š. Urban,
" Sub-Doppler spectroscopy of hydrogen and deuterium cyanide isotopomers ",
Poster, The Eighteenth Colloquium on High Resolution Molecular Spectroscopy , Dijon (France), September 8-12, 2003

10. S. Brünken, F. Lewen, G. Winnewisser, M. Simeckova, und Š. Urban,
“Doppler-limited Rotational Spectrum of the NH Radical in the 2 THz Region”,
Poster, The Eighteenth Colloquium on High Resolution Molecular Spectroscopy , Dijon (France), September 8-12, 2003

9. S. Brünken, U. Fuchs, F. Lewen, G. Winnewisser und Š. Urban,
" High Resolution Measurements on the Rotational Spectra of Hydrogen Cyanide Isotopomers up to 2 THz ",
Talk, International Symposium on Molecular Spectroscopy , Columbus , Ohio ( U.S.A. ), June 16-20, 2003

8. S. Brünken, U. Fuchs, T. Giesen, F. Lewen, G. Winnewisser und Š. Urban ,
" Sub-Doppler Measurements on the Rotational Transitions of Isotopomers of Hydrogen Cyanide ",
Poster, 17th International Conference on High Resolution Molecular Spectroscopy, Prague (Czech Republic), September 1-5, 2002

7. S. Brünken, F. Lewen, R. Gendriesch, T. Giesen und G. Winnewisser,
"Recent Molecular Highlights at 2 THz – The Cologne Sideband Spectrometer for Terahertz Applications, COSSTA, at Work",
Poster, 17th International Conference on High Resolution Molecular Spectroscopy, , Prague (Czech Republic), September 1-5, 2002

6. K.Godehusen, S.Brünken, B.Kanngießer, P.Zimmermann, und M. Martins,
" Investigation of the 3p-3d resonances of Ti by photoion spectroscopy ",
Poster, ECAMP VII und DPG Frühjahrstagung , Berlin ( Germany ), April 2-6, 2001

5. S. Brünken, K. Godehusen, Ch. Gerth, M. Jainz, W. Malzer, A. Tutay, B. Kanngießer, und P. Zimmermann,
" Gleichzeitige Bestimmung von strahlenden und nichtstrahlenden Zerfallskanälen in der K-Schale von Natrium ",
Poster, DPG Frühjahrstagung , Bonn (Germany), April, 3-7, 2000

4. Ch. Gerth, W. Benten, S. Brünken, K. Godehusen, M. Jainz, B. Kanngießer, P. van Kampen, T. Luhmann, A. Tuta y, und P. Zimmermann,
" Photoelectron-Photoion Coincidence Spectroscopy for the Determination of the K-Shell Fluorescence Yield of Neon ",
Poster, 18th International Conference on X-ray and Inner-Shell Processes, Chicago (U.S.A.), August 23-27, 1999

3. B. Kanngießer, S. Brünken, Ch. Gerth, T. Luhmann, und P. Zimmermann
" Investigation of the Ar 2s -1 and 2p -1 and the Kr 3p -1 and 3d -1 Hole States by Photoelectron-Photoion Coincidence Spectroscopy ",
Poster, 18th International Conference on X-ray and Inner-Shell Processes, Chicago (U.S.A.), August 23-27, 1999

2. S. Brünken, Ch. Gerth, K. Godehusen, B. Kanngiesser, P. Zimmermann und M. Martins,
" Elektronenspektroskopische Untersuchungen zur Lu II 5p -1 5d Multiplettaufspaltung bei atomarem Lu ",
Poster, 63. Physikertagung der DPG , Heidelberg (Deutschland), March 15-19, 1999

1. S. Brünken, Ch. Gerth, B. Kanngiesser, T. Luhmann, und P. Zimmermann,
" Photoelektron-Photoion Koinzidenzspektroskopie zur Untersuchung der Ar 2s -1 und 2p -1 Lochzustände " ,
Poster, 63. Physikertagung der DPG , Heidelberg (Germany), March 15-19, 1999