Zobrazeno 1 - 10
of 1 695
pro vyhledávání: '"De Keyser J"'
Oxygen-bearing organic molecules in comet 67P's dusty coma: first evidence for abundant heterocycles
Autor:
Hänni, N., Altwegg, K., Baklouti, D., Combi, M., Fuselier, S. A., De Keyser, J., Müller, D. R., Rubin, M., Wampfler, S. F.
Publikováno v:
A&A 678, A22 (2023)
The puzzling complexity of terrestrial biomolecules is driving the search for complex organic molecules in the Interstellar Medium (ISM) and serves as a motivation for many in situ studies of reservoirs of extraterrestrial organics from meteorites an
Externí odkaz:
http://arxiv.org/abs/2308.00343
Autor:
Altwegg, K., Combi, M., Fuselier, S. A., Hänni, N., De Keyser, J., Mahjoub, A., Müller, D. R., Pestoni, B., Rubin, M., Wampfler, S. F.
Ammonium hydrosulphide has long since been postulated to exist at least in certain layers of the giant planets. Its radiation products may be the reason for the red colour seen on Jupiter. Several ammonium salts, the products of NH3 and an acid, have
Externí odkaz:
http://arxiv.org/abs/2208.11396
Autor:
De Keyser, J., Dhooghe, F., Altwegg, K., Rubin, M., Hänni, N., Fuselier, S.A., Berthelier, J.-J., Neefs, E.
Publikováno v:
In International Journal of Mass Spectrometry October 2024 504
Autor:
De Keyser, J., Edberg, N.J.T., Henri, P., Auster, H.-U., Galand, M., Rubin, M., Nilsson, H., Soucek, J., André, N., Corte, V. Della, Rothkaehl, H., Funase, R., Kasahara, S., Van Damme, C. Corral
Publikováno v:
In Planetary and Space Science May 2024 244
Autor:
Hänni, N., Altwegg, K., Balsiger, H., Combi, M., Fuselier, S. A., De Keyser, J., Pestoni, B., Rubin, M., Wampfler, S. F.
Publikováno v:
A&A 647, A22 (2021)
The cyano radical (CN) is one of the most frequently remotely observed species in space, also in comets. Data from the high-resolution Double Focusing Mass Spectrometer (DFMS) on board the Rosetta orbiter, collected in the inner coma of comet 67P/Chu
Externí odkaz:
http://arxiv.org/abs/2102.03433
Autor:
Altwegg, K., Balsiger, H., Combi, M., De Keyser, J., Drozdovskaya, M. N., Fuselier, S. A., Gombosi, T. I., Hänni, N., Rubin, M., Schuhmann, M., Schroeder, I., Wampfler, S.
Publikováno v:
2020, Monthly Notices of the Royal Astronomical Society, 498(4), 5855-5862
The ratios of the three stable oxygen isotopes 16O, 17O and 18O on Earth and, as far as we know in the solar system, show variations on the order of a few percent at most, with a few outliers in meteorites. However, in the interstellar medium there a
Externí odkaz:
http://arxiv.org/abs/2012.05788
Autor:
Gronoff, G., Maggiolo, R., Cessateur, G., Moore, W. B., Airapetian, V., De Keyser, J., Dhooghe, F., Gibbons, A., Gunell, H., Mertens, C. J., Rubin, M., Hosseini, S.
Publikováno v:
ApJ 890 89 (2020)
Comets are small bodies thought to contain the most pristine material in the solar system. However, since their formation 4.5 Gy ago, they have been altered by different processes. While not exposed to much electromagnetic radiation, they experience
Externí odkaz:
http://arxiv.org/abs/2012.05772
Autor:
Beth, A., Altwegg, K., Balsiger, H., Berthelier, J. -J., Combi, M. R., De Keyser, J., Fiethe, B., Fuselier, S. A., Galand, M., Gombosi, T. I., Rubin, M., Sémon, T.
Publikováno v:
A&A 642, A27 (2020)
The Rosetta spacecraft escorted Comet 67P/Churyumov-Gerasimenko for 2 years along its journey through the Solar System between 3.8 and 1.24~au. Thanks to the high resolution mass spectrometer on board Rosetta, the detailed ion composition within a co
Externí odkaz:
http://arxiv.org/abs/2008.08430
Autor:
Altwegg, K., Balsiger, H., Berthelier, J. -J., Briois, C., Combi, M., Cottin, H., De Keyser, J., Dhooghe, F., Fiethe, B., Fuselier, S. A., Gombosi, T. I., Hänni, N., Rubin, M., Schuhmann, M., Schroeder, I., Sémon, T., Wampfler, S.
Cometary comae are generally depleted in nitrogen. The main carriers for volatile nitrogen in comets are NH3 and HCN. It is known that ammonia readily combines with many acids like e.g. HCN, HNCO, HCOOH, etc. encountered in the interstellar medium as
Externí odkaz:
http://arxiv.org/abs/1911.13005
Autor:
Katsiyannis, A. C., Dominique, M., Pierrard, V., Rosson, G. Lopez, De Keyser, J., Berghmans, D., Kruglanski, M., Dammasch, I. E., De Donder, E.
Publikováno v:
J. Space Weather Space Clim. 2018, 8, A01
Aims. To better understand the radiation environment in low Earth orbit (LEO), the analysis of in-situ observations of a variety of particles, at different atmospheric heights, and in a wide range of energies, is needed. Methods. We present an analys
Externí odkaz:
http://arxiv.org/abs/1710.04653