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Astronomy Colloquium

Simulated CHARIS IFS Spectrum (Princeton University)
February 11, 2016
4:00PM - 5:00PM
2015 McPherson Laboratory

Date Range
Add to Calendar 2016-02-11 16:00:00 2016-02-11 17:00:00 Astronomy Colloquium Discovering and Characterizing Exoplanets with High-Contrast Spectroscopy Tim Brandt: Institute for Advanced StudyAdvances in adaptive optics and infrared instrumentation now enable us to see young expolanets millions of times faster than their host stars. By collecting photons emitted by these worlds, imaging allows us to measure the chemistry and physical states of their atmospheres. Now, a new generation of experiments is combining upgraded adaptive optics with integral-field spectrographs (IFSs) to discover and characterize fainter worlds closer to their host stars. I will present the results of recent high-contrast surveys and the scientific promise of this new generation of instruments, with a particular focus on the CHARIS IFS for the Subaru telescope. CHARIS will be the only instrument of its class in the northern hemisphere and will have the broadest spectral coverage of any high-contrast IFS; it will provide unique sensitivity to close-in exoplanets and present new data analysis challenges. CHARIS is now being built and will begin operations this summer. It will commence its first two year, 20 night survey in early 2017, taking spectra of giant exoplanets and searching about 100 stars for new companions. Coffe and Donuts served at 3:30 in 4054 McPherson Laboratory 2015 McPherson Laboratory Department of Astronomy astronomy@osu.edu America/New_York public

Discovering and Characterizing Exoplanets with High-Contrast Spectroscopy 

Tim Brandt: Institute for Advanced Study

Advances in adaptive optics and infrared instrumentation now enable us to see young expolanets millions of times faster than their host stars. By collecting photons emitted by these worlds, imaging allows us to measure the chemistry and physical states of their atmospheres. Now, a new generation of experiments is combining upgraded adaptive optics with integral-field spectrographs (IFSs) to discover and characterize fainter worlds closer to their host stars. I will present the results of recent high-contrast surveys and the scientific promise of this new generation of instruments, with a particular focus on the CHARIS IFS for the Subaru telescope. CHARIS will be the only instrument of its class in the northern hemisphere and will have the broadest spectral coverage of any high-contrast IFS; it will provide unique sensitivity to close-in exoplanets and present new data analysis challenges. CHARIS is now being built and will begin operations this summer. It will commence its first two year, 20 night survey in early 2017, taking spectra of giant exoplanets and searching about 100 stars for new companions. 

Coffe and Donuts served at 3:30 in 4054 McPherson Laboratory