Abstract Several publications highlight the importance of observations bow shocks to learn more about surrounding interstellar medium and radiation field. We revisit most prominent dusty gaseous shock source, X7, close supermassive black hole, Sgr A*, using multiwavelength analysis. For purpose this study, we use Spectrograph for Integral Field Observations in Near Infrared (SINFONI) ( H + K -b...

A three-dimensional unsteady inverse model has been developed in order to compute heat fluxes and surface temperature in various configurations. Temperature measurements are taken backside using infrared thermography. The number of unknown parameters is reduced using a discrete cosine transform analysis and by canceling values lower than a prescribed level. The efficiency of the method is prove...

Le système d’élevage pastoral est critiqué pour son impact environnemental en raison des fortes émissions de gaz à effet serre par unité produit et l’effet néfaste sur le sol la végétation. Au Sénégal, stock carbone dans végétation suivi Centre écologique 24 sites du Sahel depuis 1987. Toutefois, C sol, paramètre essentiel aux processus d’humification litière arbres rhizodéposition herbacées, n...