Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Lamy Hervé"'
Autor:
Robert Elisa, Barthelemy Mathieu, Cessateur Gael, Woelfflé Angélique, Lamy Hervé, Bouriat Simon, Gullikstad Johnsen Magnar, Brändström Urban, Biree Lionel
Publikováno v:
Journal of Space Weather and Space Climate, Vol 13, p 30 (2023)
We present an innovative method to reconstruct the characteristics of precipitated electrons in auroral regions from optical measurements. This method is based on an optimization implemented between numerical simulations of the Transsolo code and tom
Externí odkaz:
https://doaj.org/article/60ca16cba57a4adf8c6196cef013de55
Autor:
Barthelemy Mathieu, Lamy Hervé, Vialatte Anne, Johnsen Magnar Gullikstad, Cessateur Gaël, Zaourar Naïma
Publikováno v:
Journal of Space Weather and Space Climate, Vol 9, p A26 (2019)
In this paper, we provide for the first time polarisation measurements of the N+2 N 2 + $ {\mathrm{N}}_2^{+}$ band at 427.8 nm performed with Premier Cru, a dedicated spectropolarimeter to investigate the polarisation of auroral emission
Externí odkaz:
https://doaj.org/article/81d0354daf004724a6cb0d0aedfdccc7
Autor:
Lilensten Jean, Bommier Véronique, Barthélemy Mathieu, Lamy Hervé, Bernard David, Moen Joran Idar, Johnsen Magnar Gullikstad, Løvhaug Unni Pia, Pitout Frédéric
Publikováno v:
Journal of Space Weather and Space Climate, Vol 5, p A26 (2015)
In this work, we model the polarisation of the auroral red line using the electron impact theory developed by Bommier et al. (2011). This theory enables the computation of the distribution of the Degree of Linear Polarisation (DoLP) as a function of
Externí odkaz:
https://doaj.org/article/c520a657c1a041ff9cc5734995a8709c
Autor:
Moen Joran, Bommier Véronique, Wedlund Cyril Simon, Lamy Hervé, Amblard Pierre-Olivier, Barthélémy Mathieu, Lilensten Jean, Rothkaehl Hanna, Eymard Julien, Ribot Jocelyn
Publikováno v:
Journal of Space Weather and Space Climate, Vol 3, p A01 (2013)
The thermospheric atomic oxygen red line is among the brightest in the auroral spectrum. Previous observations in Longyearbyen, Svalbard, indicated that it may be intrinsically polarized, but a possible contamination by light pollution could not be r
Externí odkaz:
https://doaj.org/article/0062d5e6d15f492794da871394a4e1ba
Autor:
Drolshagen, Esther, Ott, Theresa, Koschny, Detlef, Drolshagen, Gerhard, Vaubaillon, Jeremie, Colas, Francois, Trigo-Rodriguez, Josep Maria, Zanda, Brigitte, Bouley, Sylvain, Jeanne, Simon, Malgoyre, Adrien, Birlan, Mirel, Vernazza, Pierre, Gardiol, Daniele, Nedelcu, Dan Alin, Rowe, Jim, Forcier, Mathieu, Asensio, Eloy Peña, Lamy, Herve, Ferrière, Ludovic, Barghini, Dario, Carbognani, Albino, Di Martino, Mario, Rasetti, Stefania, Valsecchi, Giovanni Battista, Volpicelli, Cosimo Antonio, Di Carlo, Matteo, Knapic, Cristina, Pratesi, Giovanni, Riva, Walter, Stirpe, Giovanna M., Zorba, Sonia, Hernandez, Olivier, Jehin, Emmanuel, Jobin, Marc, King, Ashley, Sanchez-Lavega, Agustin, Toni, Andrea, Poppe, Björn
Publikováno v:
A&A 650, A159 (2021)
In meteor physics the luminous efficiency ${\tau}$ is used to convert the meteor's magnitude to the corresponding meteoroid's mass. However, lack of sufficiently accurate verification methods or adequate laboratory tests leave this parameter to be co
Externí odkaz:
http://arxiv.org/abs/2011.06805
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In this paper we discuss the collisionless transport equations, continuity, momentum and energy conservation, derived from a kinetic exospheric model of the solar wind based on a kappa velocity distribution function of the electrons. The model is sta
Externí odkaz:
http://arxiv.org/abs/1410.3597
Autor:
Chang, Tom, Wu, Cheng-chin, Echim, Marius, Lamy, Herve, Vogelsberger, Mark, Hernquist, Lars, Sijacki, Debora
Dynamic Complexity is a phenomenon exhibited by a nonlinearly interacting system within which multitudes of different sizes of large scale coherent structures emerge, resulting in a globally nonlinear stochastic behavior vastly different from that co
Externí odkaz:
http://arxiv.org/abs/1402.6398
The mass density of dust particles that form from asteroids and comets in the interplanetary medium of the solar system is, near 1 AU, comparable to the mass density of the solar wind. It is mainly contained in particles of micrometer size and larger
Externí odkaz:
http://arxiv.org/abs/1008.1742
A survey measuring quasar polarization vectors has been started in two regions towards the North and South Galactic Poles. Here, We review the discovery of significant correlations of orientations of polarization vectors over huge angular distances.
Externí odkaz:
http://arxiv.org/abs/astro-ph/0501043