14-17 mai 2019


Spectroscopic surveys: the French expertise leading to Maunakea Spectroscopic Explorer (MSE)


Nicolas Flagey (CFHT), Jean-Charles Cuillandre, Vanessa Hill, Christophe Yeche


Astronomy has recently entered the multi-wavelength realm of big facilities to tackle the most fundamental questions in today’s astrophysics. Collectively, these facilities represent many billions of dollars in investment and many decades of development, by large teams from the international community. Some of these facilities are already hosting scientific exploration: allowing researchers to probe questions as diverse and fundamental as the origin of life and the composition of our universe. The second data release from Gaia is already having an impact on almost all areas of astronomy; the Large Synoptic Survey Telescope (LSST) is being built; and the VLOTs are entering the construction phase. These are no longer next generation scientific ambitions; instead, they are at the cutting edge of what is happening now. Each of these facilities hosts well-defined, standalone scientific projects. Recent history has demonstrated that combining data from multiple facilities will be key to major advances. Examining this network of astronomical facilities inevitably prompts the question of whether any critical capabilities are still missing? Multiple international groups have asked this question over the past decade, and all have concluded that the vital piece of equipment needed is a dedicated, large-aperture, multi-object spectroscopic facility. Over the next few years, multiple facilities with strong support from the French community will gather their first photons (DESI, PFS, WEAVE, MOONS, 4MOST). These facilities will help us better understand subjects as diverse as the chemo-dynamical and star-formation histories of resolved stellar populations of the Milky Way and other Local Group galaxies, the growth of galaxies and large-scale structures over cosmic time, and the nature of dark matter and dark energy. MSE, a transformation of CFHT into a 10m class telescope fully dedicated to spectroscopic surveys in the optical and near-IR, will be the next big project for the French community interested in studies of the faint universe through the observations of thousands to millions of spectra. MSE will be built at one of the best locations on the planet and relies on the history of a facility that has delivered high-quality science data to a diverse community for 40 years.

Afternoon of May 14th
2:00pm-2:25pm Nicolas Martin: Galactic Archaeology
2:25pm-2:50pm Laurence Tresse: Evolution and formation of galaxies
2:50pm-3:15pm Christophe Yeche: Cosmology
3:15pm-3:40pm Nicolas Flagey: The Maunakea Spectroscopic Explorer
3:40pm-4:00pm Coffee break
4:00pm-4:15pm Vanessa Hill: WEAVE: a multi-object facility for the William Herschel Telescope
4:15pm-4:30pm Mathieu Van der swaelmen: Spectroscopic surveys: expectations and achievements
4:30pm-4:45pm Jose gregorio Fernandez trincado: The eyes of APOGEE on new stellar populations with unusual elemental abundances
4:45pm-5:00pm Emma Fernández-Alvar: Spectroscopic surveys unvealing the Galactic stellar halo origin
5:00pm-5:15pm Pieri Matthew: Growth of Massive Spectroscopic Surveys of the Intergalactic Medium
5:15pm-5:30pm Jorge Andres Villa Velez: The link between spectroscopic and photometric data for COSMOS/GOODS-S fields and the MOONS future prospectives for SED fitting studies
5:30pm-6:00pm Discussion

e-posters in this session

Fernandez trincado Jose gregorioThe interplay between radial velocity variability and Multiple Stellar Populations in Galactic Globular Clustersfile not uploaded
Villa Velez Jorge AndresThe link between spectroscopic and photometric data for COSMOS/GOODS-S fields and the MOONS future prospectives for SED fitting studiesfile not uploaded
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