Team Members
Team Members
Rachel Bowens-Rubin is a postdoctoral researcher who studies exoplanets. Rachel completed their undergraduate degree in Physics & Earth, Atmospheric, and Planetary Science at MIT and their PhD in Astronomy & Astrophysics at UC Santa Cruz. They worked as a mechanical engineer with the BICEP/Keck Telescope Array from 2014 - 2016 and served as the winterover Lab Technician at McMurdo Station Antarctica in 2018. For their dissertation work, they developed adaptive optics instrumentation and led high-contrast imaging surveys using the W. M. Keck Observatory as a member of the UCSC Lab for Adaptive Optics. Rachel is currently leading a JWST direct imaging program with the goal of discovering exoplanets orbiting 6 of our nearest neighbors (GO 6122: Cool Kids on the Block)
I am currently the ELT Post-doctoral Fellow at the University of Michigan Astronomy Depatment. I study exoplanet formation and evolution, particularly in binary star systems, through direct imaging and high-contrast imaging ground-based observations. I'm a part of the MagAO-X team, the extreme adaptive optics instrument on the Magellan Clay telescope in Chile. I have also worked with Keck/NIRC2 images, and with unresolved companions in stellar binaries in Gaia.
Brooke is an NSF Graduate Research Fellow at the University of Michigan, where she searches for transiting secondary companions to substellar worlds using JWST and Roman. In addition to her research, she works as a planetarium operator at the UMich Museum of Natural History and organizes Ann Arbor Astronomy on Tap.
Max is a second year Astronomy PhD student and Rackham Merit Fellow at U of M. They are interested in studying exoplanets around white dwarf stars, such as using JWST data to look for thermal variability of WD 1856 b. Outside of research, they enjoy being involved in teaching and outreach.
Sean is a first year Astronomy PhD student at the University of Michigan. His work involves searching for transiting exomoons around free floating planets and characterizing substellar variability in the Orion Nebula Cluster. As an undergraduate at the University of British Columbia, Sean worked on the discovery and characterization of a multi-planet warm Jupiter system displaying mean motion resonance.
Kunal is a first year Astronomy PhD student and Rackham Merit Fellow at the University of Michigan, where he works on using stellar and substellar variability in JWST imaging as a membership criterion to explore the initial mass function in the Orion Nebula Cluster. Outside of research, he enjoys reading, playing recreational sports, and being involved in astronomy outreach.
Sam is a post-bacc who graduated in May 2026 from U of M. He is currently working on high-contrast imaging with Rachel Bowens-Rubin. His prior research revolves around exploring the detectability of exomoons and exorings with JWST and the Habitable Worlds Observatory (HWO). Specifically, he focuses on the detectability of icy moons and rings, as well as Earth-like moons. Outside of research, Sam also works for U of M’s Detroit Observatory, where he is involved in public outreach and program development for astronomy and historical astronomy.
Elizabeth is a fourth-year undergraduate student double majoring in Astronomy & Astrophysics and Interdisciplinary Physics at the University of Michigan working with Logan Pearce and Mary Anne Limbach. Their research focuses on detecting rings around exoplanets using the CGI on the Roman Space Telescope.
Alisha Vasan is a third-year undergraduate at the University of Michigan. She plans to pursue a dual degree in Physics and Astronomy/Astrophysics. In high school, she conducted research on dark matter recognition and gravitational lensing in galaxy clusters. Currently, she is working with Dr. Mary Anne Limbach on research focusing on flux deficits and the persistence of white dwarfs using data from the JWST. Outside of academics, she enjoys playing musical instruments, exploring Ann Arbor, and painting.
Nishanth Ramanujam is a third-year undergraduate student at the University of Michigan double majoring in Astronomy & Astrophysics and Interdisciplinary Physics with a focus in Chemical Physics, and minoring in Data Science. Currently, he has been working on Roman astrometric detection of companions to brown dwarfs with Kyle Franson and Mary Anne Limbach. Previously he was researching young star-forming regions with high exosatellite transit yields around brown dwarfs in the hopes of characterizing the atmospheric variability of these brown dwarfs and detecting exosatellite transits using the Wide Field Instrument on the Nancy Grace Roman Space Telescope.
Katherine Neigh is a third-year undergraduate at the University of Michigan pursuing a Space Science Engineering degree with a specification in space instrumentation as well as a double minor in Astronomy/Astrophysics and Physics. She is working with Dr. Limach on the detectability of cold exoplanets (Neptune-analogs) around white dwarf (and main sequence stars) with future mid- to far-IR observatories. In her free time, Katherine enjoys reading anything and everything, starting a new crochet project, or exploring new cities!
Postdocs & Students Collaborating Closely with our Group:
Kyle Franson is an NHFP Sagan Fellow at the University of California, Santa Cruz. His research combines astrometry from Gaia with ground- and space-based high-contrast imaging to study giant planet formation, evolution, and atmospheres. He is currently preparing to use Gaia DR4 to efficiently discover new giant planets and measure their dynamical masses with next-generation exoplanet imaging instruments.
Sydney Jenkins is a fifth year PhD student at the Massachusetts Institute of Technology. Her work focuses on the discovery and characterization of planets around white dwarf stars.
Mikayla Wilson is a fourth year Astronomy and Astrophysics PhD student at the University of California Santa Cruz. Her work focuses on exomoon detection around free-floating planetary mass objects with JWST.
Emi is a third-year undergraduate double majoring in Astronomy & Astrophysics and Interdisciplinary Physics, and minoring in B/C/S Literature and Culture at the University of Michigan. Emi is working with Dr. Logan Pearce on high-contrast imaging of faint stellar companions with MagAO-X, an extreme adaptive optics instrument on the Magellan Clay Telescope. Outside of research and academics, Emi enjoys being with family and friends, and is involved in education outreach.
Previous group members:
Harper Rosenthal as a post-bac from 2025-2026, now a graduate student at PSU
Andrew Householder as UMich undergraduate from 2024-2026, now a graduate student at ASU
Matson Garza as a MIT undergrad from 2025-2026, now a graduate student at Harvard
Jeffrey C. Mason as a Texas A&M undergrad, 2019-2021, now a graduate student at New Mexico Institute of Mining and Technology
Anna Sage Ross-Browning as a Texas A&M REU student, summer 2019, now a graduate student at University of Idaho