UNIVERSITY PARK, Pa. – Researchers from Penn State helped to identify a planet too big for its sun last year, leading to questions about the formation of planets within solar systems. The discovery, led by Suvrath Mahadevan, Verne M. Willaman Professor of Astronomy and Astrophysics, included work from students – like third-year graduate student researcher Megan Delamer and undergraduate student Abigail Minnich.
Delamer analyzed data and was co-author of the paper, which ran in the journal Science last year. Minnich, who double majors in planetary science and film communications, helped to craft models and visuals that would explain the discovery to the public. Both students will speak to their research experiences in a Board of Trustees meeting on Friday, May 3. They each met with Penn State News for a Q&A ahead of the presentation.
Q: How did you get involved in this research project?
Minnich: I'm connected with both the planetary science astronomy department and the Bellisario College of Communications, and what I want to do with both of those is take a harder concepts and explain it in a way that it can make sense for other people. Within the research side of it, we’re presenting an exoplanet, and not a lot of people know what an exoplanet is. A small graphic or an explanation and a video has helped people a lot. What I've done with the research group is, I recreated this really cool planet they found in a 3D model called Blender. That helps to show people what it would look like if we saw it, and just how big it is.
Delamer: I had taken one year of classes, and I was asked, ‘Do you want to look through this data?’ I started looking through it, and then I ended up being involved in the work on a paper. Based on my portion of the data, the very early stages of the work, we discovered an exoplanet, which is a planet that orbits any star that's not our sun. We found a really big planet – unexpectedly so. The star is one ninth the size of our sun, and the planet is 13 times the mass of the earth. We don't expect there to be that much material to form planets around these really small stars, and it opens up some new questions. How we think planets form works pretty well under a lot of circumstances, but it's pointing out that there are holes in our understanding. It's exciting to know that even when you're just learning, you can make really big, impactful discoveries.
Q: Why were you interested in working on this project?
Minnich: I've always wanted to do science communication. I actually had no idea that I was going to go down the graphics route, because I wanted to be like Carl Sagan or Bill Nye and educate people. I thought I was going to go through that row of education, doing stand-up videos rather than graphics. It's new to me, but it's so exciting.
Delamer: I actually majored in biology as an undergrad. I realized once I worked in the medical field, I didn't actually want to go to medical school. My favorite class as an undergrad was actually an astronomy and astrophysics course. I ended up getting a master's degree in astronomy. I worked on Circumstellar disks, which are what planets form out of, and I really enjoyed my research on that. Then, when I got here to Penn State, I could continue working on disks or I could try something a little bit new. Trying something new has worked out really well for me, and I like a lot.