Affiliated Postdocs/Research Scientists
Melinda Soares-Furtado Melinda is a NASA Hubble Postdoctoral Fellow working jointly at MIT and the University of Wisconsin-Madison. She is investigating anomalous stellar signatures that arise from the accretion/engulfment of substellar companions. Such signatures include chemical enrichment and rotational enhancement. One of her major objectives is to detect a star that has engulfed a planetary companion. Such a star could provide valuable constraints on the bulk composition of the companion, which would have far-reaching implications in the theory of planet formation. Melinda also applies image subtraction reduction techniques to photometric surveys (Kepler/K2) in an effort to search for periodic variability in open clusters. This includes the search for transiting exoplanets in these systems. When she is not glued to her terminal, you may find her hunting for vintage astronomy textbooks, making time-lapse videos of the birds in her garden, or competing in a Beat Saber battle with her children (she always loses). |
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Javier Viaña Javier Viaña is currently a Postdoc Associate at MIT Kavli Institute of Astrophysics and Space Research. He obtained his Ph.D. in Explainable Artificial Intelligence applied to the Aerospace Engineering at the University of Cincinnati. His doctoral research revolved around the conception of novel transparent algorithms that not only provide accurate predictions but also human-understandable justifications of the results. His current research is focused on the design of deep neural network architectures that automatically classify TESS transiting planet candidates. Previously, Javier developed tailored AI solutions for different aerospace organizations such as Aurora Flight Sciences, Boeing, Satlantis Microsatellites, NASA, ESA, Genexia, and the Northern Kentucky International Airport. He graduated from his Bachelor's in Mechanical Engineering at the University of the Basque Country, and Master’s in Aerospace Engineering at the University of Cincinnati. His main research topics and interest include transparency in AI, deep fuzzy networks, genetic fuzzy systems, bio-inspired evolutionary optimization, white dwarf spectral characterization, exoplanet detection, and black holes. |
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Mary Anne Limbach Mary Anne Limbach is a research scientist in the Astronomy department at the University of Michigan. Her research is focused on exomoon detection techniques and white dwarf exoplanet discovery and characterization. Her ultimate objective is to gain insights into the prevalence, diversity, evolution, and potential habitability of these these elusive worlds. In pursuit of her research goals, she predominantly leverages space-based observatories, previously Spitzer and currently JWST. Additionally, she is actively engaged in developing new methodologies for detecting exomoons, utilizing upcoming observatories like the Roman Space Telescope and the Habitable Worlds Observatory. She also develops new instrumentation to achieve her research goals when they cannot be accomplished with existing facilities. She has served as the optical engineer and/or instrument scientist on several large facility exoplanet instruments including Subaru/CHARIS and the GPI2.0 IFS. |
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Juliana García-Mejía Dr. Juliana García-Mejía (hOO - lee - AH - nuh, Gahr - see - ah, meh - HEE - ah) is a 51 Pegasi b and MIT Pappalardo postdoctoral fellow at the MIT Kavli Institute for Astrophysics and Space Research. Juliana is broadly interested in developing novel astronomical instrumentation to enable the study of exoplanets, their atmospheres, and their low mass stellar hosts. She is the PI of The Tierras Observatory, a new 1.3-m ultra-precise fully automated photometer located atop Mt. Hopkins, Arizona. Having spent her entire Ph.D. building Tierras, she is currently focused on using the facility to uncover temperate terrestrial planets, search for moons around exoplanets, and study their low mass stellar hosts. Juliana is also pursuing the design of a high throughput, extremely high resolution pathfinder spectrograph to enable narrow-wavelength atmospheric structure and velocity dynamic studies of exoplanets, and to expand cosmochronological and magnetic field studies of stars of varied spectral types. In the future, this instrument could enable the detection of molecular oxygen in a terrestrial exoplanet atmosphere. |
Graduate Students
Mariona Badenas-Agusti I am a fifth-year Ph.D. candidate in Planetary Sciences at MIT, where I work with Prof. Andrew Vanderburg and Prof. Sara Seager on ancient exoplanetary systems around white dwarfs (i.e. the final evolutionary stage of intermediate-mass stars such as our Sun). In particular, I am developing new machine learning and statistical tools to characterize the properties of rocky extra-solar bodies that accrete onto the atmospheres of white dwarfs. Before joining MIT, I earned a Bachelor's degree in Astrophysics from Yale University and a Master’s degree in Astrophysics, Cosmology, and High Energy Physics from Universitat Autònoma de Barcelona and the Institute of Space Studies of Catalonia. Outside of academia, I am very interested in the aerospace industry and I am a member of the Space Generation Advisory Council and of Women in Aerospace Europe. |
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Bob Aloisi I am returning to UW - Madison to earn an Astronomy PhD after initially earning a BS Chemical Engineering degree many years ago. I am working with Professor Vanderburg on Exoplanet research, initially searching for hot Jupiter planets orbiting white dwarf stars. I recently earned a second major in Physics at UW – Milwaukee, where my research projects included: building payloads to launch on NASA sounding rockets; finding timing solutions to constrain the properties of several pulsars; updating the Census of the Local Universe (CLU) galaxy catalog, which is referenced when gravitational waves are observed; and traveling to the University of Sydney, where I searched for radio bright supernovae using the first survey images from a new radio telescope array called the Australian SKA Pathfinder. I enjoy stargazing, campfires, fishing and other outdoor activities. |
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Lizhou Sha I am a fourth-year PhD student in astronomy at the University of Wisconsin–Madison. I use advanced computational techniques to uncover unusual planetary system architectures. I graduated from the Massachusetts Institute of Technology in 2018 with an SB in physics. My first job after graduation was with NASA’s TESS space telescope, whose mission is to search most of the sky for nearby transiting exoplanets. Under the guidance of Dr. Chelsea X. Huang, I helped build, maintain, and execute one of the mission’s two planet detection pipelines. |
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Zoë de Beurs Zoë is a third-year PhD student studying Planetary Science at MIT as an NSF Graduate Research Fellow. Her research interests include using machine learning for exoplanet detection, planetary atmospheres, and mitigating stellar activity in radial velocity measurements to become sensitive to the signals of earth-twins. When Zoë is not searching for exoplanets, she can be found drinking copious amounts of coffee, watering her plants, or advocating for making science more accessible through outreach and equity and inclusion initiatives. |
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Sydney Jenkins Sydney is a third-year NSF Graduate Research Fellow in the MIT Department of Physics. She previously earned a BA in physics and BS in computer science at the University of Chicago. During her time at UChicago, she worked on projects studying ultra-faint dwarf galaxies and developing machine learning tools for the classification of galaxy mergers and variable stars. She is currently using TRES to measure the primordial metallicity of white dwarfs in binary systems. This will place constraints on how planets are perturbed toward their host stars. Outside of astronomy, she enjoys hiking, tending to her indoor garden, and exploring Boston. |
Affiliated graduate students
Undergraduate Students
Former group members
- Malena Rice (Fall 2022-Summer 2023 as a 51 Pegasi b postdoctoral fellow)
- Elyse Incha (Summer 2020-Summer 2023 as a UW-Madison undergraduate)
- Warit Wijitworasart (Fall 2021-Summer 2023 as an MIT undergraduate student)
- Sarah Kubiak (Winter 2021-Spring 2023 as a UW-Madison undergrad and a Colorado State grad student)
- Panupong Phoompuang (Fall 2021-Spring 2022 as an MIT undergraduate)
- Maura Lally (Summer 2019-Spring 2022 originally as a Northwestern University undergraduate and a Cornell graduate student)
- Ben Havlicek (Fall 2020 as a UW-Madison undergraduate)
- Ben Steck (Fall 2020-Summer 2021 as a University of Wisconsin-Madison undergraduate)
- Anne Dattilo (Fall 2017-Summer 2019 as a University of Texas undergraduate.)
- Aditya Shah (Fall 2018-Spring 2019 as a University of Texas undergraduate).
- Gerlinder Difo Cheri (Summer 2018 as a University of the Virgin Islands undergraduate)
- Rayna Rampalli (Summer 2017 - Spring 2019 as a Wellesley undergraduate and a Columbia bridge student)
- Clea Schumer (Summer 2017 as a Harvard undergraduate)
- Andy Mayo (Spring 2014-Summer 2017 as a Harvard undergraduate.)