Séminaire Univers / |
| « A Wide-Area iubmillimeter Imaging and spectroscopy survey with the Chajnantor sub/millimeter survey telescope » |
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Sunil Golwala |
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We are developing a project to build a 30-m telescope
operating at wavelengths as short as 850 $\mu$m with 1 degree field of view for imaging and multi-object spectroscopic surveys. With this project, we aim to: trace the evolution of dusty, star-forming galaxies from high redshift to the z $\sim 1-3$ epoch when they dominate the cosmic star formation rate; connect this population to the high-redshift rest-frame UV/optical galaxy population; use these dusty galaxies, the most biased overdensities, to guide ultra-deep followup at $z > 3.5$ and possibly $z > 7$; map the fragmentation structure of molecular clouds, its connection to the stellar initial mass function, and the episodic accretion onto protostellar cores; determine how the rate and efficiency of star formation in the Milky Way and nearby galaxies depends on stellar mass, local environment, and overall galaxy morphology; characterize the evolution of galaxy clusters via mergers, accretion, and energy injection by correlating gas pressure, internal motions, and temperature with other probes; and use galaxy clusters to measure the universe’s peculiar velocity field. We will describe the expected surveys addressing these science goals, the novel telescope design, and the planned survey instrumentation. |
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mardi 4 juillet 2017 - 11:15 Salle 281 Institut d'Astrophysique de Paris |
| Pages web du séminaire / Seminar's webpage |