Category Archives: Exoplanet Science

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

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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The Plot Thickens: Habitable-Zone Exoplanets around Proxima Centauri and TRAPPIST-1

Introduction As the time approaches to commission HPF on the Hobby-Eberly Telescope, we are learning that the spectrograph will be coming online in truly exciting times for exoplanet science!  The detection of habitable-zone exoplanets around two nearby M dwarf stars—including … Continue reading

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More on stellar activity: an investigation of Gliese 667C

A few posts back, we explored how even with a highly precise planet-hunting instrument such as HPF, radial velocity noise from magnetic activity on our target stars may hinder our ability to detect exoplanet signals.  In that post, we used … Continue reading

Posted in Exoplanet Science, HPF Science, Stellar Science | 5 Comments