Category Archives: Exoplanet Science

HPF discovers a Jupiter transiting the cool star TOI-1899

HPF has confirmed the planetary nature of a single-transiting Jupiter-sized planet (1.15 Jupiter radii) orbiting a nearby low mass M dwarf star on an orbital period of ~29 days. The paper has been published in the Astronomical Journal and is available on … Continue reading

Posted in Exoplanet Science, HPF Science | Comments Off on HPF discovers a Jupiter transiting the cool star TOI-1899

HPF discovers a warm super Neptune – TOI-1728b

The Discovery A component of HPF’s on-sky time is used to follow up on potential planets discovered by NASA’s Transiting Exoplanet Survey Satellite (TESS), launched in 2018. TESS is nominally a 2-year mission designed to conduct an all-sky survey to … Continue reading

Posted in Exoplanet Science, HPF Science | Comments Off on HPF discovers a warm super Neptune – TOI-1728b

Eternal spotshine of the spinning red suns

Introduction Much of our time on sky with HPF is dedicated to discovering exoplanets, and measuring their detailed properties.  To do this, we concentrate our efforts on older, magnetically quiet stars to minimize noise and make the planets easier to … Continue reading

Posted in Exoplanet Science, HPF Science, Stellar Science | Comments Off on Eternal spotshine of the spinning red suns