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Ongoing Projects

Stellar Activity

In order to understand the mature exoplanet population seen today, it is important to understand the environments in which they grew and evolved in. In particular, young stars (< 800 Myr) are much more magnetically active compared to their main sequence counterparts. My most recent work evaluated flare rate as a function of stellar age using TESS 2-minute observations. I created and trained a convolutional neural network to identify flare events. These methods assign a probability that an event is a flare or not. We found that stars with effective temperatures > 4000 K show a decrease in flare rate beyond 50 Myr, while cooler stars remain consistently active across the first 800 Myr of their lives. We also found that planets lose 4-7% more atmosphere when accounting for flares.

Relevant Links: Exoplanets 3 Poster; Software Documentation; AAS Paper; JOSS Paper

Exoplanet Detection & Characterization

I am the lead developer of an open-source Python package, eleanor, can be used to explore the TESS Full-Frame Images (FFIs). Light curves for every star in the TESS Input Catalog (TIC) brighter than Tmag = 16, for which 1% photometry is achievable, will be hosted on MAST and newly identified exoplanet candidates will be posted on ExoFOP-TESS as Community TESS Objects of Interest (CTOIs). Users can create custom light curves for any source in the TESS field of view (e.g. solar system objects, extragalactic sources).

Relevant Links: Software Documentation; PASP paper; MAST products.