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Peer Reviewed
See detailMarrow stromal cell recovery after radiation-induced aplasia in mice
Almohamad, Khaled; Thiry, Albert ULg; Hubin, Frédérique et al

in International Journal of Radiation Biology (2003), 79(4), 259-67

Detailed reference viewed: 28 (2 ULg)
See detailMars atmospheric escape constrained using MAVEN IUVS coronal observations
Chaffin; Deighan; Chauffray et al

Conference (2015, October)

Detailed reference viewed: 15 (1 ULg)
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See detailMars aurora review
Stiepen, Arnaud ULg

Conference (2014, July)

Detailed reference viewed: 34 (4 ULg)
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See detailMars dayglow review
Stiepen, Arnaud ULg

Conference (2014, July)

Detailed reference viewed: 16 (1 ULg)
See detailThe Mars discrete aurora: Mars Express observations and modeling.
Gérard, Jean-Claude ULg

Scientific conference (2015, June)

Summary of earlier work Detection of additional ultraviolet auroral events (nadir and limb) Concurrent SPICAM-­‐ASPERA 3 observations Model results Perspectives

Detailed reference viewed: 36 (1 ULg)
See detailThe Mars discrete aurora: morphology, altitude and role of crustal magnetic field
Gérard, Jean-Claude ULg

Scientific conference (2015, December 01)

We present results obtained during 2015 in the framework of BELSPO's SCOOP/BRAIN project. They concern the morphology, frequency, structure of the Mars discrete aurora and the influence of the residual ... [more ▼]

We present results obtained during 2015 in the framework of BELSPO's SCOOP/BRAIN project. They concern the morphology, frequency, structure of the Mars discrete aurora and the influence of the residual crustal magnetic field. [less ▲]

Detailed reference viewed: 40 (5 ULg)
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See detailMars nightglow review
Stiepen, Arnaud ULg

Conference (2014, July)

Detailed reference viewed: 23 (4 ULg)
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See detailMars nighttime aurora
European Space Agency, ESA/ATG medialab; Gérard, Jean-Claude ULg; Soret, Lauriane ULg

E-print/Working paper (2015)

Press release by the European Space Agency (ESA) on the occasion of the publication in two journals of the peer-reviewed literature

Detailed reference viewed: 24 (1 ULg)
See detailMars Ozone Mapping with MAVEN IUVS
Lefèvre; IUVS team; Stiepen, Arnaud ULg

Poster (2015, December)

Detailed reference viewed: 12 (0 ULg)
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See detailMars thermospheric temperatures retrieved from SPICAM dayglow measurements
Stiepen, Arnaud ULg; Gérard, Jean-Claude ULg; Bougher, S et al

Conference (2013, September 10)

Detailed reference viewed: 24 (2 ULg)
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See detailMars Topography Investigated Through the Wavelet Leaders Method: a Multidimensional Study of its Fractal Structure
Deliège, Adrien ULg; Kleyntssens, Thomas ULg; Nicolay, Samuel ULg

Poster (2016, April)

This work examines the scaling properties of Mars topography through a wavelet-based formalism. We conduct exhaustive one-dimensional (both longitudinal and latitudinal) and two-dimensional studies based ... [more ▼]

This work examines the scaling properties of Mars topography through a wavelet-based formalism. We conduct exhaustive one-dimensional (both longitudinal and latitudinal) and two-dimensional studies based on Mars Orbiter Laser Altimeter (MOLA) data using the multifractal formalism called Wavelet Leaders Method (WLM). This approach shows that a scale break occurs at approximately 15 km, giving two scaling regimes in both 1D and 2D cases. At small scales, these topographic profiles mostly display a monofractal behavior while a switch to multifractality is observed in several areas at larger scales. The scaling exponents extracted from this framework tend to be greater at small scales. In the 1D context, these observations are in agreement with previous works and thus suggest that the WLM is well-suited for examining scaling properties of topographic fields. Moreover, the 2D analysis is the first such complete study to our knowledge. It gives both a local and global insight on the scaling regimes of the surface of Mars and allows to exhibit the link between the scaling exponents and several famous features of the Martian topography. These results may be used as a solid basis for further investigations of the scaling laws of the Red planet and show that the WLM could be used to perform systematic analyses of the surface roughness of other celestial bodies. [less ▲]

Detailed reference viewed: 19 (4 ULg)
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Peer Reviewed
See detailMars ultraviolet dayglow variability: SPICAM observations and comparison with airglow model
Cox, Cédric ULg; Gérard, Jean-Claude ULg; Hubert, Benoît ULg et al

in Journal of Geophysical Research. Planets (2010), 115

Dayglow ultraviolet emissions of the CO Cameron bands and the CO[SUB]2[/SUB][SUP]+[/SUP] doublet in the Martian atmosphere have been observed with the Spectroscopy for Investigation of Characteristics of ... [more ▼]

Dayglow ultraviolet emissions of the CO Cameron bands and the CO[SUB]2[/SUB][SUP]+[/SUP] doublet in the Martian atmosphere have been observed with the Spectroscopy for Investigation of Characteristics of the Atmosphere of Mars on board the Mars Express spacecraft. A large amount of limb profiles has been obtained which makes it possible to analyze variability of the brightness as well as of the altitude of the emission peak. Focusing on one specific season (Ls = [90,180] °), we find that the average CO peak brightness is equal to 118 ± 33 kR, with an average peak altitude of 121.1 ± 6.5 km. Similarly, the CO[SUB]2[/SUB][SUP]+[/SUP] emission shows a mean brightness of 21.6 ± 7.2 kR with a peak located at 119.1 ± 7.0 km. We show that the brightness intensity of the airglows is mainly controlled by the solar zenith angle and by solar activity. Moreover, during Martian summer of year 2005, an increase of the airglow peak altitude has been observed between Ls = 120° and 180°. We demonstrate that this variation is due to a change in the thermospheric local CO[SUB]2[/SUB] density, in agreement with observations performed by stellar occultation. Using a Monte Carlo one-dimensional model, we also show that the main features of the emission profiles can be reproduced for the considered set of data. However, we find it necessary to scale the calculated intensities by a fixed factor. [less ▲]

Detailed reference viewed: 45 (19 ULg)
See detailThe Mars ultraviolet dayglow variability: SPICAM observations and model comparison
Gérard, Jean-Claude ULg; Cox, Cédric ULg; Bougher, S. W. et al

Conference (2009, September 16)

Limb profiles of the CO Cameron and CO2+ doublet airglow have been observed over different conditions (latitude, season, SZA, F10.7). They have been individually modelled using currently accepted cross ... [more ▼]

Limb profiles of the CO Cameron and CO2+ doublet airglow have been observed over different conditions (latitude, season, SZA, F10.7). They have been individually modelled using currently accepted cross sections, and outputs from the MTGCM. They have been shown to co-vary, with a ICO/ICO2+ ratio of about 4.7, less than the modelled ratio.The peak brightness varies linearly with the F10.7 solar flux proxy, in a way compatible with the Mariner 6 and 7 observations. The intensity of both emissions is overestimated by the model (but large uncertainties exist in excitation cross sections). An increase of the altitude of both emissions has been observed during the 2005 summer season. It is a consequence of the dust load, followed by an increased thermospheric CO2 density observed with SPICAV during the same period. This density enhancement is partly predicted by GCM models. [less ▲]

Detailed reference viewed: 14 (2 ULg)
See detailLa Marseillaise, ou le devenir d'un chant révolutionnaire en Wallonie.
Raxhon, Philippe ULg

Book published by Institut Jules Destrée (1998)

Detailed reference viewed: 34 (1 ULg)
See detailMarsick (Familie)
Pirenne, Christophe ULg

in Finscher, Ludwig (Ed.) Die Musik in Geschichte und Gegenwart (2004)

Detailed reference viewed: 7 (1 ULg)
Peer Reviewed
See detailMarsilio Ficino and Political Syncretism in Ian McEwan's Black Dogs
Delville, Michel ULg

in Notes on Contemporary Literature (1996), XXIV(3), 11-12

Detailed reference viewed: 147 (17 ULg)