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Yale Astronomy


June 24, 2014 - The Yale Exoplanets Group received full funding for the Extreme Precision Spectrograph (EXPRES). EXPRES, with a goal of 10 cm/s instrumental precision, will be built at Yale, installed on the 4.3 m Discovery Channel Telescope in Arizona, and used for the 100 Earths Project.

May 12, 2014 - Grad student Jack Moriarty leads a new study finding that Diamond planets may be more common than astronomers once thought. The researchers found that carbon-rich planets can form in disks with carbon-oxygen ratios (C/O) as low as 0.65. Previous models predicted carbon-rich planets could only form in disks with C/O higher than 0.8. This is important because there are many more stars with C/O greater than 0.65 than there are with C/O greater than 0.8.

Diamond planets may be more common than astronomers thought. 
	(Illustration by Haven Giguere)
© Haven Giguere
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About Us

Photo by Jose Velasquez

Debra Fischer's group at Yale works on the discovery of planets orbiting nearby stars.

Our research projects include Doppler planet searches, and analysis of the properties of planet-hosting stars.

We also have an active instrumentation and software development program to investigate novel designs needed for achieving better Doppler precision.