Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Luc Sagnières"'
Publikováno v:
Advances in Space Research. 65:1742-1757
This paper demonstrates active space debris removal using spaceborne laser systems. The laser beam and the surface of the target are discretised into multiple rays and finite elements, respectively, for laser-target interaction modelling, in which th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d263a57e8b55a2cbefd579b458aa8695
https://doi.org/10.1016/j.asr.2020.01.002
https://doi.org/10.1016/j.asr.2020.01.002
Autor:
Inna Sharf, Luc Sagnières
Publikováno v:
Journal of Guidance, Control, and Dynamics. 42:364-376
A new model for the analysis and prediction of the rotational motion of large space debris over a long term is outlined. A formulation for a high-order gravity-gradient torque is derived as well as...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62b620d1687dfa5a79800d1dd996029b
https://doi.org/10.2514/1.g003647
https://doi.org/10.2514/1.g003647
Publikováno v:
Advances in Space Research
Advances in Space Research, Elsevier, 2020, 65 (4), pp.1182-1195. ⟨10.1016/j.asr.2019.11.021⟩
Advances in Space Research, 2020, 65 (4), pp.1182-1195. ⟨10.1016/j.asr.2019.11.021⟩
Advances in Space Research, Elsevier, 2020, 65 (4), pp.1182-1195. ⟨10.1016/j.asr.2019.11.021⟩
Advances in Space Research, 2020, 65 (4), pp.1182-1195. ⟨10.1016/j.asr.2019.11.021⟩
Accurate knowledge of the rotational dynamics of a large space debris is crucial for space situational awareness (SSA), whether it be for accurate orbital predictions needed for satellite conjunction analyses or for the success of an eventual active
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd1917f8dd6e9e333c696a1976aa1484
https://hal.archives-ouvertes.fr/hal-03260789
https://hal.archives-ouvertes.fr/hal-03260789
Autor:
Changyong He, Han Cai, Kefei Zhang, Brett Carter, Emma Kerr, Yang Yang, Suqin Wu, Robert J. Norman, Luc Sagnières, Florent Deleflie
Publikováno v:
Progress in Aerospace Sciences
Progress in Aerospace Sciences, Elsevier, 2018, 103, pp.31-51. ⟨10.1016/j.paerosci.2018.10.003⟩
Progress in Aerospace Sciences, 2018, 103, pp.31-51. ⟨10.1016/j.paerosci.2018.10.003⟩
Progress in Aerospace Sciences, Elsevier, 2018, 103, pp.31-51. ⟨10.1016/j.paerosci.2018.10.003⟩
Progress in Aerospace Sciences, 2018, 103, pp.31-51. ⟨10.1016/j.paerosci.2018.10.003⟩
Atmospheric drag, as one of the largest non-gravitational perturbations in low Earth orbit (LEO), can dramatically decay the orbit of LEO satellites with both secular and periodic effects. Hence, it plays a critical role in orbit prediction related p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::026afd64000350d04ecc38fa5a0d50e8
https://doi.org/10.1016/j.paerosci.2018.10.003
https://doi.org/10.1016/j.paerosci.2018.10.003
Publikováno v:
Advances in Space Research. 61:1286-1297
Current efforts in active debris removal strategies and mission planning focus on removing the largest, most massive debris. It can be argued, however, that small untrackable debris, specifically those smaller than 5 cm in size, also pose a serious t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52a4c354d0ccf7f81b314b47638e40d2
https://doi.org/10.1016/j.asr.2017.12.026
https://doi.org/10.1016/j.asr.2017.12.026
Autor:
Luc Sagnières, Inna Sharf
Publikováno v:
Advances in Space Research. 59:1128-1143
Bombardment of orbital debris and micrometeoroids on active and inoperative satellites is becoming an increasing threat to space operations and has significant consequences on space missions. Concerns with orbital debris have led agencies to start de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eceacb4c528a4223173c7765f6451f29
https://doi.org/10.1016/j.asr.2016.11.030
https://doi.org/10.1016/j.asr.2016.11.030
Autor:
Martin Rubin, Jean-Pierre Lebreton, Peter Wurz, A. J. Allen, Elias Odelstad, Karl-Heinz Glassmeier, T. W. Broiles, Anders Eriksson, Luc Sagnières, Erik Vigren, Kathleen Mandt, James L. Burch, Xavier Vallières, Chia-Yu Tzou, Chris Carr, K. L. Heritier, Steven J. Schwartz, F. L. Johansson, Arnaud Beth, Thierry Sémon, Emanuele Cupido, Hans Nilsson, Pierre Henri, Marina Galand, Kathrin Altwegg, Ingo Richter
Publikováno v:
S351
S331
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2016, 462 (1), pp.S331-S351. ⟨10.1093/mnras/stw2891⟩
Galand, M.; Héritier, K. L.; Odelstad, E.; Henri, P.; Broiles, T. W.; Allen, A. J.; Altwegg, Kathrin; Beth, A.; Burch, J. L.; Carr, C. M.; Cupido, E.; Eriksson, A. I.; Glassmeier, K.-H.; Johansson, F. L.; Lebreton, J.-P.; Mandt, K. E.; Nilsson, H.; Richter, I.; Rubin, Martin; Sagnières, L. B. M.; ... (2016). Ionospheric plasma of comet 67P probed by Rosetta at 3 au from the Sun. Monthly notices of the Royal Astronomical Society, 462(Suppl 1), S331-S351. Oxford University Press 10.1093/mnras/stw2891
S331
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2016, 462 (1), pp.S331-S351. ⟨10.1093/mnras/stw2891⟩
Galand, M.; Héritier, K. L.; Odelstad, E.; Henri, P.; Broiles, T. W.; Allen, A. J.; Altwegg, Kathrin; Beth, A.; Burch, J. L.; Carr, C. M.; Cupido, E.; Eriksson, A. I.; Glassmeier, K.-H.; Johansson, F. L.; Lebreton, J.-P.; Mandt, K. E.; Nilsson, H.; Richter, I.; Rubin, Martin; Sagnières, L. B. M.; ... (2016). Ionospheric plasma of comet 67P probed by Rosetta at 3 au from the Sun. Monthly notices of the Royal Astronomical Society, 462(Suppl 1), S331-S351. Oxford University Press 10.1093/mnras/stw2891
We propose to identify the main sources of ionization of the plasma in the coma of comet 67P/Churyumov-Gerasimenko at different locations in the coma and to quantify their relative importance, for the first time, for close cometocentric distances (<
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a8fff7f8e2dbaaa49cd4138376d01f6
https://doi.org/10.1093/mnras/stw2891
https://doi.org/10.1093/mnras/stw2891
Autor:
Roger V. Yelle, Erik Vigren, Véronique Vuitton, Marina Galand, Anne Wellbrock, Andrew J. Coates, Jun Cui, Luc Sagnières, Panayotis Lavvas
Publikováno v:
Journal of Geophysical Research: Space Physics. 120:5899-5921
Titan has the most chemically complex ionosphere of the solar system. The main sources of ions on the dayside are ionization by EUV solar radiation and on the nightside include ionization by precipitated electrons from Saturn's magnetosphere and tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aefc3ec99647c0b9b538ef34a238f89b
https://doi.org/10.1002/2014ja020890
https://doi.org/10.1002/2014ja020890
Autor:
Véronique Vuitton, Anne Wellbrock, Niklas J. T. Edberg, Marina Galand, Darci Snowden, Luc Sagnières, Erik Vigren, Andrew J. Coates, Panayotis Lavvas, Jun Cui, Jan-Erik Wahlund
The dayside ionosphere of the Saturnian satellite Titan is generated mainly from photoionization of N-2 and CH4. We compare model-derived suprathermal electron intensities with spectra measured by the Cassini Plasma Spectrometer/Electron Spectrometer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d15e0d404817bc09617be2bbaa7aa39
http://hdl.handle.net/10044/1/41234
http://hdl.handle.net/10044/1/41234
A simple device for determining the azimuthal location of a source of gamma radiation, using ideas from astrophysical gamma-ray burst detection, is described. A compact and robust detector built from eight identical modules, each comprising a plate o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21e2e332c867a90cce7ea7feed116310
http://arxiv.org/abs/1506.05338
http://arxiv.org/abs/1506.05338