Access content directly
LL

Léna Le Roy

42
Documents
Researcher identifiers

Presentation

Publications

Image document

Krypton isotopes and noble gas abundances in the coma of comet 67P/Churyumov-Gerasimenko

Martin Rubin , Kathrin Altwegg , Hans Balsiger , Akiva Bar-Nun , Jean-Jacques Berthelier
Science Advances , 2018, 4 (7), pp.eaar6297. ⟨10.1126/sciadv.aar6297⟩
Journal articles insu-01877545v1
Image document

Organics in comet 67P – a first comparative analysis of mass spectra from ROSINA–DFMS, COSAC and Ptolemy

Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier , André Bieler , Ursina Calmonte
Monthly Notices of the Royal Astronomical Society, 2017, 469 (Suppl_2), pp.S130 - S141. ⟨10.1093/mnras/stx1415⟩
Journal articles insu-01574263v1
Image document

Change of outgassing pattern of 67P/Churyumov–Gerasimenko during the March 2016 equinox as seen by ROSINA

Sébastien Gasc , Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier , André Bieler
Monthly Notices of the Royal Astronomical Society, 2017, 469 (Suppl_2), pp.S108 - S117. ⟨10.1093/mnras/stx1412⟩
Journal articles insu-01574257v1
Image document

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

Nicolas Fray , Anaïs Bardyn , Hervé Cottin , Donia Baklouti , Christelle Briois
Monthly Notices of the Royal Astronomical Society, 2017, 469 (Suppl_2), pp.S506-S516. ⟨10.1093/mnras/stx2002⟩
Journal articles insu-02766152v1
Image document

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

Anaïs Bardyn , Donia Baklouti , Hervé Cottin , Nicolas Fray , Christelle Briois
Monthly Notices of the Royal Astronomical Society, 2017, 469 (Suppl_2), pp.S712-S722. ⟨10.1093/mnras/stx2640⟩
Journal articles insu-02764524v1
Image document

Xenon isotopes in 67P/Churyumov-Gerasimenko show that comets contributed to Earth's atmosphere

B. Marty , Kathrin Altwegg , Hans Balsiger , A. Bar-Nun , D.V. Bekaert
Science, 2017, 356 (6342), pp.1069-1072. ⟨10.1126/science.aal3496⟩
Journal articles insu-01670669v1
Image document

Sulphur isotope mass-independent fractionation observed in comet 67P/Churyumov–Gerasimenko by Rosetta/ROSINA

Ursina Calmonte , Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier , A. Bieler
Monthly Notices of the Royal Astronomical Society, 2017, 469 (suppl_2), pp.S787-S803. ⟨10.1093/mnras/stx2534⟩
Journal articles insu-01671992v1
Image document

D2O and HDS in the coma of 67P/Churyumov–Gerasimenko

Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier , André Bieler , Ursina Calmonte
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2017, 375 (n° 2097), ⟨10.1098/rsta.2016.0253⟩
Journal articles insu-01530459v1
Image document

Evidence for depletion of heavy silicon isotopes at comet 67P/Churyumov-Gerasimenko

Martin Rubin , Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier , André Bieler
Astronomy and Astrophysics - A&A, 2017, 601, A123 (9 p.). ⟨10.1051/0004-6361/201730584⟩
Journal articles insu-01518753v1
Image document

Evidence for distributed gas sources of hydrogen halides in the coma of comet 67P/Churyumov–Gerasimenko

Johan de Keyser , Frederik Dhooghe , Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier
Monthly Notices of the Royal Astronomical Society, 2017, 469 (Suppl_2), pp.S695-S711. ⟨10.1093/mnras/stx2725⟩
Journal articles insu-02765310v1
Image document

Halogens as tracers of protosolar nebula material in comet 67P/Churyumov-Gerasimenko

Frederik Dhooghe , Johan de Keyser , Kathrin Altwegg , Christelle Briois , Hans Balsiger
Monthly Notices of the Royal Astronomical Society, 2017, 472 (2), pp.1336-1345. ⟨10.1093/mnras/stx1911⟩
Journal articles insu-01575014v1
Image document

Isotopic composition of CO2 in the coma of 67P/Churyumov-Gerasimenko measured with ROSINA/DFMS

Myrtha Hässig , Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier , André Bieler
Astronomy and Astrophysics - A&A, 2017, 605, A50 (8 p.). ⟨10.1051/0004-6361/201630140⟩
Journal articles insu-01571239v1
Image document

Prebiotic chemicals--amino acid and phosphorus--in the coma of comet 67P/Churyumov-Gerasimenko

Kathrin Altwegg , Hans Balsiger , Akiva Bar-Nun , Jean-Jacques Berthelier , Andre Bieler
Science Advances , 2016, 2 (5), e1600285 (5 p.). ⟨10.1126/sciadv.1600285⟩
Journal articles insu-01351340v1
Image document

COMET 67P/CHURYUMOV-GERASIMENKO: CLOSE-UP ON DUST PARTICLE FRAGMENTS

M. Hilchenbach , J. Kissel , Y. Langevin , Christelle Briois , H. von Hoerner
The Astrophysical journal letters, 2016, 816 (2), pp.L32. ⟨10.3847/2041-8205/816/2/L32⟩
Journal articles in2p3-01291758v1

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

Nicolas Fray , Anaïs Bardyn , Hervé Cottin , Kathrin Altwegg , Donia Baklouti
Nature, 2016, 538, pp.72-74. ⟨10.1038/nature19320⟩
Journal articles insu-01362335v1
Image document

Evolution of water production of 67P/Churyumov-Gerasimenko: an empirical model and a multi-instrument study

Kenneth C. Hansen , Kathrin Altwegg , Jean-Jacques Berthelier , André Bieler , N. Biver
Monthly Notices of the Royal Astronomical Society, 2016, 462 (Suppl. 1), pp.S491-S506. ⟨10.1093/mnras/stw2413⟩
Journal articles insu-01374507v1
Image document

First in-situ detection of the cometary ammonium ion NH4+ (protonated ammonia NH3 ) in the coma of 67P/C-G near perihelion

Arnaud Beth , Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier , Ursina Calmonte
Monthly Notices of the Royal Astronomical Society, 2016, 462 (Suppl_1), pp.S562-S572. ⟨10.1093/mnras/stw3370⟩
Journal articles insu-01427998v1
Image document

Ion chemistry in the coma of comet 67P near perihelion

S. A. Fuselier , Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier , A. Beth
Monthly Notices of the Royal Astronomical Society, 2016, 462 (Suppl. 1), pp.S67-S77. ⟨10.1093/mnras/stw2149⟩
Journal articles insu-01368192v1
Image document

Sulphur-bearing species in the coma of comet 67P/Churyumov–Gerasimenko

Ursina Calmonte , Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier , A. Bieler
Monthly Notices of the Royal Astronomical Society, 2016, 462 (Suppl 1), pp.S253 - S273. ⟨10.1093/mnras/stw2601⟩
Journal articles insu-01402761v1
Image document

Three-dimensional direct simulation Monte-Carlo modeling of the coma of comet 67P/Churyumov-Gerasimenko observed by the VIRTIS and ROSINA instruments on board Rosetta

Nicolas Fougere , Kathrin Altwegg , Jean-Jacques Berthelier , Andre Bieler , Dominique Bockelee-Morvan
Astronomy and Astrophysics - A&A, 2016, 588, A134 (11p.). ⟨10.1051/0004-6361/201527889⟩
Journal articles insu-01283022v1
Image document

High-Time Resolution In-situ Investigation of Major Cometary Volatiles around 67P/C-G at 3.1 - 2.3 AU Measured with ROSINA-RTOF

Urs Mall , Kathrin Altwegg , Hans Balsiger , A. Bar-Nun , Jean-Jacques Berthelier
The Astrophysical Journal, 2016, 819 (2), pp.126. ⟨10.3847/0004-637X/819/2/126⟩
Journal articles insu-01287167v1
Image document

Direct Simulation Monte Carlo modelling of the major species in the coma of comet 67P/Churyumov-Gerasimenko

Nicolas Fougere , Kathrin Altwegg , Jean-Jacques Berthelier , Andre Bieler , Dominique Bockelée-Morvan
Monthly Notices of the Royal Astronomical Society, 2016, 462 (suppl. 1), pp.S156-S169. ⟨10.1093/mnras/stw2388⟩
Journal articles insu-01370624v1
Image document

Photochemistry of forbidden oxygen lines in the inner coma of 67P/Churyumov-Gerasimenko

G. Cessateur , J. de Keyser , R. Maggiolo , A. Gibbons , G. Gronoff
Journal of Geophysical Research Space Physics, 2016, 121 (1), pp.804-816. ⟨10.1002/2015JA022013⟩
Journal articles insu-01318159v1
Image document

Abundant molecular oxygen in the coma of comet 67P/Churyumov–Gerasimenko

Andre Bieler , Kathrin Altwegg , Hans Balsiger , Akiva Bar-Nun , Jean-Jacques Berthelier
Nature, 2015, 526 (7575), pp.678-681. ⟨10.1038/nature15707⟩
Journal articles hal-01346075v1
Image document

Time variability and heterogeneity in the coma of 67P/Churyumov-Gerasimenko

Myrtha Hässig , Kathrin Altwegg , Hans Balsiger , A. Bar-Nun , Jean-Jacques Berthelier
Science, 2015, 347 (6220), ⟨10.1126/science.aaa0276⟩
Journal articles hal-01346055v1
Image document

Solar wind sputtering of dust on the surface of 67P/Churyumov-Gerasimenko

Peter Wurz , Martin Rubin , Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier
Astronomy and Astrophysics - A&A, 2015, 583, A22 (9 p.). ⟨10.1051/0004-6361/201525980⟩
Journal articles insu-01206313v1
Image document

Molecular nitrogen in comet 67P/Churyumov-Gerasimenko indicates a low formation temperature

Martin Rubin , Kathrin Altwegg , Hans Balsiger , A. Bar-Nun , Jean-Jacques Berthelier
Science, 2015, 348 (6231), pp.232-235. ⟨10.1126/science.aaa6100⟩
Journal articles hal-01346031v1

The capabilities of ROSINA/DFMS to measure argon isotopes at comet 67P/Churyumov-Gerasimenko

Myrtha Hässig , Kathrin Altwegg , Jean-Jacques Berthelier , U. Calmonte , J. de Keyser
Planetary and Space Science, 2015, 105, pp.175-178. ⟨10.1016/j.pss.2014.11.015⟩
Journal articles hal-01085254v1

Organic compounds on comet 67P/Churyumov-Gerasimenko revealed by COSAC mass spectrometry

Fred Goesmann , Helmut Rosenbauer , Jan Hendrik Bredehoft , Michel Cabane , Pascale Ehrenfreund
Science, 2015, 349 (6247), pp.aab0689. ⟨10.1126/science.aab0689⟩
Journal articles insu-01182551v1
Image document

ROSINA/DFMS and IES observations of 67P: Ion-neutral chemistry in the coma of a weakly outgassing comet

S. A. Fuselier , Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier , A. Bieler
Astronomy and Astrophysics - A&A, 2015, 583, A2 (13 p.). ⟨10.1051/0004-6361/201526210⟩
Journal articles insu-01199226v1

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

Rita Schulz , Martin Hilchenbach , Yves Langevin , Jochen Kissel , Johan Silen
Nature, 2015, 518 (7538), pp.216-218. ⟨10.1038/nature14159⟩
Journal articles insu-01182128v1
Image document

Inventory of the volatiles on comet 67P/Churyumov-Gerasimenko from Rosetta/ROSINA

Léna Le Roy , Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier , Andre Bieler
Astronomy and Astrophysics - A&A, 2015, 583, A1 (12 p.). ⟨10.1051/0004-6361/201526450⟩
Journal articles insu-01199178v1
Image document

Composition-dependent outgassing of comet 67P/Churyumov-Gerasimenko from ROSINA/DFMS. Implications for nucleus heterogeneity?

A. Luspay-Kuti , M. Hässig , S. A. Fuselier , K. E. Mandt , Kathrin Altwegg
Astronomy and Astrophysics - A&A, 2015, 583, A4 (8 p.). ⟨10.1051/0004-6361/201526205⟩
Journal articles insu-01206306v1
Image document

Comparison of 3D kinetic and hydrodynamic models to ROSINA-COPS measurements of the neutral coma of 67P/Churyumov-Gerasimenko

Andre Bieler , Kathrin Altwegg , Hans Balsiger , Jean-Jacques Berthelier , Ursina Calmonte
Astronomy and Astrophysics - A&A, 2015, 583, pp.A7. ⟨10.1051/0004-6361/201526178⟩
Journal articles insu-01200510v1
Image document

Correcting peak deformation in Rosetta's ROSINA/DFMS mass spectrometer

Johan de Keyser , Federik Dhooghe , Andrew Gibbons , Kathrin Altwegg , Hans Balsiger
International Journal of Mass Spectrometry, 2015, 393, pp.41-51. ⟨10.1016/j.ijms.2015.10.010⟩
Journal articles insu-01219657v1

COSIMA calibration for the detection and characterization of the cometary solid organic matter

Léna Le Roy , Anais Bardyn , Christelle Briois , Hervé Cottin , Nicolas Fray
Planetary and Space Science, 2015, 105, pp.1-25. ⟨10.1016/j.pss.2014.08.015⟩
Journal articles insu-01181240v1
Image document

Detection of argon in the coma of comet 67P/Churyumov-Gerasimenko

Hans Balsiger , Kathrin Altwegg , Akiva Bar-Nun , Jean-Jacques Berthelier , Andre Bieler
Science Advances , 2015, 1 (8), pp.E1500377 ⟨10.1126/sciadv.1500377⟩
Journal articles hal-01346022v1
Image document

67P/Churyumov-Gerasimenko, a Jupiter family comet with a high D/H ratio

Kathrin Altwegg , Hans Balsiger , A. Bar-Nun , Jean-Jacques Berthelier , Andre Bieler
Science, 2015, 347 (6220), 3 p. ⟨10.1126/science.1261952⟩
Journal articles hal-01346024v1

Formation of analogs of cometary nitrogen-rich refractory organics from thermal degradation of tholin and hcn polymer

Jean-Yves Bonnet , Eric Quirico , Arnaud Buch , Roland Thissen , Cyril Szopa
Icarus, 2015, 250, pp.53-63. ⟨10.1016/j.icarus.2014.11.006⟩
Journal articles hal-01088866v1

On the prospective detection of polyoxymethylene in comet 67P/Churyumov-Gerasimenko with the COSIMA instrument onboard Rosetta

Léna Le Roy , G. Briani , Christelle Briois , H. Cottin , N. Fray
Planetary and Space Science, 2012, 65, pp.83-92. ⟨10.1016/j.pss.2012.01.011⟩
Journal articles in2p3-00779619v1

Very high resolution mass spectrometry of HCN polymers and tholins

Véronique Vuitton , Jean-Yves Bonnet , Maeliss Frisari , Roland Thissen , Eric Quirico
Faraday Discussions, 2010, 147, pp.495-508. ⟨10.1039/C003758C⟩
Journal articles hal-00510369v1