Category Archives: Exoplanet Science

Measuring Exoplanet Atmospheres with HPF

Posted on April 30, 2020 by Paul M Robertson

Introduction: Transmission Spectroscopy As we have covered in previous posts, HPF was designed and built for the goal of detecting exoplanets through the Doppler motion of their host stars.  Of course, there are other astrophysics experiments that can take advantage … Continue reading →

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HPF Commissioning: A New Standard in the Near Infrared

Posted on February 19, 2019 by Paul M Robertson

We’ve been quiet… Our last post, made about a year ago, shared our excitement at having delivered HPF to its permanent home on HET, and recording the instrument’s first data.  Since then, we have been busy doing the hard work … Continue reading →

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Stellar Activity in the Near-Infrared: We Need a New Ruler!

Posted on October 13, 2016 by Paul M Robertson

Introduction We talk about stellar activity a lot on this blog.  Once HPF gets on sky, radial velocity noise from stellar activity will likely be the biggest impediment to finding exoplanets.  Thus, if we want HPF’s chief scientific mission of … Continue reading →

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