Search Results - "Hänni, Nora"

Evidence for Abiotic Dimethyl Sulfide in Cometary Matter by Hänni, Nora, Altwegg, Kathrin, Combi, Michael, Fuselier, Stephen A., De Keyser, Johan, Ligterink, Niels F. W., Rubin, Martin, Wampfler, Susanne F.

“…Abstract Technological progress related to astronomical observatories such as the recently launched James Webb Space Telescope (JWST) allows searching for…”
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CHO-Bearing Molecules in Comet 67P/Churyumov-Gerasimenko by Schuhmann, Markus, Altwegg, Kathrin, Balsiger, Hans, Berthelier, Jean-Jacques, De Keyser, Johan, Fuselier, Stephen A, Gasc, Sébastien, Gombosi, Tamas I, Hänni, Nora, Rubin, Martin, Sémon, Thierry, Tzou, Chia-Yu, Wampfler, Susanne F

“…In 2004, the Rosetta spacecraft was sent to comet 67P/Churyumov-Gerasimenko for the first ever long-term investigation of a comet. After its arrival in 2014,…”
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Elemental and molecular abundances in comet 67P/Churyumov-Gerasimenko by Rubin, Martin, Altwegg, Kathrin, Balsiger, Hans, Berthelier, Jean-Jacques, Combi, Michael R, De Keyser, Johan, Drozdovskaya, Maria, Fiethe, Björn, Fuselier, Stephen A, Gasc, Sébastien, Gombosi, Tamas I, Hänni, Nora, Hansen, Kenneth C, Mall, Urs, Rème, Henri, Schroeder, Isaac R H G, Schuhmann, Markus, Sémon, Thierry, Waite, Jack H, Wampfler, Susanne F, Wurz, Peter

“…ABSTRACT Comets are considered to be some of the most pristine and unprocessed Solar system objects accessible to in situ exploration. Investigating their…”
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Evidence of ammonium salts in comet 67P as explanation for the nitrogen depletion in cometary comae by Altwegg, Kathrin, Balsiger, Hans, Hänni, Nora, Rubin, Martin, Schuhmann, Markus, Schroeder, Isaac, Sémon, Thierry, Wampfler, Susanne, Berthelier, Jean-Jacques, Briois, Christelle, Combi, Mike, Gombosi, Tamas I., Cottin, Hervé, De Keyser, Johan, Dhooghe, Frederik, Fiethe, Björn, Fuselier, Steven A.

“…Cometary comae are generally depleted in nitrogen. The main carriers for volatile nitrogen in comets are NH 3 and HCN. It is known that ammonia readily…”
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Ammonium Salts as a Source of Small Molecules Observed with High-Resolution Electron-Impact Ionization Mass Spectrometry by Hänni, Nora, Gasc, Sébastien, Etter, Adrian, Schuhmann, Markus, Schroeder, Isaac, Wampfler, Susanne F, Schürch, Stefan, Rubin, Martin, Altwegg, Kathrin

“…Recent high-resolution in situ mass spectrometry at comet 67P/Churyumov–Gerasimenko visited by European Space Agency’s Rosetta spacecraft raised the question,…”
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Volatiles in the H2O and CO2 ices of comet 67P/Churyumov–Gerasimenko by Rubin, Martin, Altwegg, Kathrin, Berthelier, Jean-Jacques, Combi, Michael R, De Keyser, Johan, Fuselier, Stephen A, Gombosi, Tamas I, Gudipati, Murthy S, Hänni, Nora, Kipfer, Kristina A, Ligterink, Niels F W, Müller, Daniel R, Shou, Yinsi, Wampfler, Susanne F

“…ABSTRACT European Space Agency’s Rosetta spacecraft at comet 67P/Churyumov–Gerasimenko (67P) was the first mission that accompanied a comet over a substantial…”
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Deciphering cometary outbursts: linking gas composition changes to trigger mechanisms by Müller, Daniel R, Altwegg, Kathrin, Berthelier, Jean-Jacques, Combi, Michael R, De Keyser, Johan, Fuselier, Stephen A, Garnier, Philippe, Hänni, Nora, Mall, Urs, Rubin, Martin, Wampfler, Susanne F, Wurz, Peter

“…ABSTRACT Dust and gas outbursts are recurrent cometary phenomena, playing a crucial role in shaping the coma. Proposed outburst trigger mechanisms include…”
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First in situ detection of the CN radical in comets and evidence for a distributed source by Hänni, Nora, Altwegg, Kathrin, Pestoni, Boris, Rubin, Martin, Schroeder, Isaac, Schuhmann, Markus, Wampfler, Susanne

“…ABSTRACT Although the debate regarding the origin of the cyano (CN) radical in comets has been ongoing for many decades, it has yielded no definitive answer to…”
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Low Temperature Phases of Na2Ti3Cl8 Revisited by Hänni, Nora, Frontzek, Matthias, Hauser, Jürg, Cheptiakov, Denis, Krämer, Karl

“…The low temperature phases of Na2Ti3Cl8 and their phase transitions were investigated by powder neutron diffraction, heat capacity, and magnetic susceptibility…”
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Chlorine-bearing species and the 37Cl/35Cl isotope ratio in the coma of comet 67P/Churyumov–Gerasimenko by Dhooghe, Frederik, De Keyser, Johan, Hänni, Nora, Altwegg, Kathrin, Cessateur, Gaël, Jehin, Emmanuel, Maggiolo, Romain, Rubin, Martin, Wurz, Peter

“…ABSTRACT A full-mission analysis has been conducted of Cl-bearing species in the coma of comet 67P/Churyumov–Gerasimenko as detected by the Double Focusing…”
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Low Temperature Phases of Na 2 Ti 3 Cl 8 Revisited by Hänni, Nora, Frontzek, Matthias, Hauser, Jürg, Cheptiakov, Denis, Krämer, Karl

“…The low temperature phases of Na 2 Ti 3 Cl 8 and their phase transitions were investigated by powder neutron diffraction, heat capacity, and magnetic…”
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Complex organosulfur molecules on comet 67P: Evidence from the ROSINA measurements and insights from laboratory simulations by Mahjoub, Ahmed, Altwegg, Kathrin, Poston, Michael J, Rubin, Martin, Hodyss, Robert, Choukroun, Mathieu, Ehlmann, Bethany L, Hänni, Nora, Brown, Michael E, Blacksberg, Jordana, Eiler, John M, Hand, Kevin P

“…The ROSINA (Rosetta Orbiter Spectrometer for Ion and Neutral Analysis) instrument aboard the Rosetta mission revolutionized our understanding of cometary…”
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Evidence for Abiotic Dimethyl Sulfide in Cometary Matter by Hänni, Nora, Altwegg, Kathrin, Combi, Michael, Fuselier, Stephen A, De Keyser, Johan, Ligterink, Niels F. W, Rubin, Martin, Wampfler, Susanne F

“…Technological progress related to astronomical observatories such as the recently launched James Webb Space Telescope (JWST) allows searching for signs of life…”
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Detection of volatiles undergoing sublimation from 67P/Churyumov-Gerasimenko coma particles using ROSINA/COPS. II. The nude gauge by Pestoni, Boris, Altwegg, Kathrin, Balsiger, Hans, Hänni, Nora, Rubin, Martin, Schroeder, Isaac, Schuhmann, Markus, Wampfler, Susanne

“…A&A 651, A26 (2021) In an earlier study, we reported that the ram gauge of the COmet Pressure Sensor (COPS), one of the three instruments of the Rosetta…”
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Multi-instrument analysis of 67P/Churyumov-Gerasimenko coma particles: COPS-GIADA data fusion by Pestoni, Boris, Altwegg, Kathrin, Della Corte, Vincenzo, Hänni, Nora, Longobardo, Andrea, Müller, Daniel R, Rotundi, Alessandra, Rubin, Martin, Wampfler, Susanne F

“…A&A 671, A168 (2023) The European Space Agency's Rosetta mission to comet 67P/Churyumov-Gerasimenko has offered scientists the opportunity to study a comet in…”
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Volatiles in the H$_2$O and CO$_2$ ices of comet 67P/Churyumov-Gerasimenko by Rubin, Martin, Altwegg, Kathrin, Berthelier, Jean-Jacques, Combi, Michael R, De Keyser, Johan, Fuselier, Stephen A, Gombosi, Tamas I, Gudipati, Murthy S, Hänni, Nora, Kipfer, Kristina A, Ligterink, Niels F. W, Müller, Daniel R, Shou, Yinsi, Wampfler, Susanne F

“…Monthly Notices of the Royal Astronomical Society, stad3005, 2023 ESA's Rosetta spacecraft at comet 67P/Churyumov-Gerasimenko (67P) was the first mission that…”
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Detection of volatiles undergoing sublimation from 67P/Churyumov-Gerasimenko coma particles using ROSINA/COPS. I. The ram gauge by Pestoni, Boris, Altwegg, Kathrin, Balsiger, Hans, Hänni, Nora, Rubin, Martin, Schroeder, Isaac, Schuhmann, Markus, Wampfler, Susanne

“…A&A 645, A38 (2021) The ESA Rosetta mission has allowed an extensive in-situ study of comet 67P/Churyumov-Gerasimenko. In measurements performed by the ram…”
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First in-situ detection of the CN radical in comets and evidence for a distributed source by Hänni, Nora, Altwegg, Kathrin, Pestoni, Boris, Rubin, Martin, Schroeder, Isaac, Schuhmann, Markus, Wampfler, Susanne

“…Although the debate regarding the origin of the cyano (CN) radical in comets has been ongoing for many decades, it has yielded no definitive answer to date. CN…”
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High D/H ratios in water and alkanes in comet 67P/Churyumov-Gerasimenko measured with the Rosetta/ROSINA DFMS by Müller, Daniel R, Altwegg, Kathrin, Berthelier, Jean-Jacques, Combi, Michael R, De Keyser, Johan, Fuselier, Stephen, Hänni, Nora, Pestoni, Boris, Rubin, Martin, Schroeder, Isaac R. H. G, Wampfler, Susanne F

“…A&A 662, A69 (2022) Isotopic abundances in comets are key to understanding the history and origin of material in the Solar System. Deuterium-to-hydrogen (D/H)…”
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Refractory elements in the gas phase for comet 67P/Churyumov-Gerasimenko by Rubin, Martin, Altwegg, Kathrin, Berthelier, Jean-Jacques, Combi, Michael R, De Keyser, Johan, Dhooghe, Frederik, Fuselier, Stephen, Gombosi, Tamas I, Hänni, Nora, Müller, Daniel, Pestoni, Boris, Wampfler, Susanne F, Wurz, Peter

“…A&A 658, A87 (2022) Results. We found that gas-phase silicon was present throughout the Rosetta mission. Furthermore, the presence of sodium and iron atoms…”
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