Astrophysics of Interstellar Matter
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7 years 11 months ago
Nabila Aghanim, CNRS Directeur de Recherche at the Institut d’Astrophysique Spatiale in Orsay has just received the CNRS Silver Medal, a distinction, which « honours every year researchers for the originality, the quality, and the significance of their work, recognised both in France and internationally, contributing thus to the influence of the CNRS and to the excellence of French research »
8 years 1 day ago
Led by Nabila Aghanim, the ByoPiC project (funded by an ERC Advanced Grant) aims at solving a key issue in astrophysics and cosmology: Where are the baryons hidden today in the cosmic web?
8 years 6 months ago
By combining multi-wavelength data obtained from space with Planck and WISE, and from the ground with MegaCam on the CFHT, a team of researchers has revealed the structure of the diffuse interstellar medium over several square degrees with unprecedented details. In particular, this study reveals the statistical properties of interstellar turbulence over a wide range of scales, from 0.01 to 10 pc.
9 years 3 months ago
The stratospheric balloon carrying the PILOT instrument was launched from Timmins in Canada at 9 pm (local time) on Sunday, September 20th. The gondola, weighting more than a ton, the heaviest the CNES took in the last 25 years, was lifted by a stratospheric balloon of 800.000 m3 and reached the altitude of 39.500 m after 3 hours of ascent. After a last transfer of helium carried out just before take-off, the detectors reached nominally their operating temperature of 320 mK when the balloon reached its flight ceiling, and the scientific observations could then start.
9 years 3 months ago
To reconcile the standard cosmological model with the X-ray measured number of galaxy clusters, a team of French scientists has shown that the cluster masses should be increased by 70% compared to current estimates. These results follow the conclusions obtained by the Planck mission in 2013 from observations of galaxy clusters in the microwave domain. This huge difference is intriguing: either our understanding of the physics of galaxy clusters needs to be revised, or the standard cosmological model is incomplete.