Group
Astroweiss Group
The astroweiss group includes postdoctoral scholars, graduate students, and undergraduate students who are studying diverse topics related to exoplanet system architectures and planetary compositions and formation. Group members are currently supported at two sites: University of Notre Dame and University of Hawaii, Manoa.
Astroweiss Group, 2023 (Notre Dame)
L to R: Lauren Weiss, Matthias He, Aaron Householder, Alex Thomas, Jared Kolecki, Carlos Jurado, Matthew Doty, David Shaw. Not pictured: Casey Brinkman, Jingwen Zhang.
Astroweiss Group, 2021 (U. Hawaii)
L to R: Dan Huber, Jingwen Zhang, Lauren Weiss, Casey Brinkman.
Postdoctoral Scholars
Dr. Matthias Yang He (2022-), Notre Dame
Determining the Most Common Planetary System Architectures
Graduate Students
Jared Kolecki (2023-), Notre Dame
Elemental Abundances of Planet-Hosting Stars
Alex Thomas (2022-), Notre Dame
Mass and Composition Uniformity in the Kepler-323 and Kepler-104 Multi-planet Systems
David Shaw (2022-), Notre Dame
Masses and orbits in Kepler's Highest Multiplicity System from RVs and TTVs
Mass Diversity in the Kepler-90 eight-planet system (AAS Chambliss Award, 2023)
Casey Brinkman (2019-), U. Hawaii, PhD candidate
Jingwen Zhang (2019-), U. Hawaii
PhD Thesis: Dynamical Architectures of Planets in S-Type Binary Star Systems from Radial Velocities, Astrometry, Direct Imaging, and Transits
Long-period Jovian Tilts the Orbits of Two sub-Neptunes Relative to Stellar Spin Axis in Kepler-129 (published in The Astronomical Journal)
Jack Lubin (2020-2022), UC Irvine
TESS-Keck Survey V: Masses of Three Sub-Neptunes Orbiting HD 191939 and the Discovery of Two Outer Jovians (published in The Astronomical Journal)
Emma Turtelboom (2020-2022), UC Berkeley
TESS-Keck Survey XI: Mass diversity in four similarly sized sub-Neptunes (published in The Astronomical Journal)
Sarah Blunt (2018-2019) , Caltech
Radial Velocity Discovery of an Eccentric Jovian World Orbiting at 18 AU (published in The Astronomical Journal)
Undergraduate Students
Carlos Jurado (2023-), Notre Dame REU
Upper Limits on Companions to Kepler's Circumbinary Planets from a Decade of RVs
Matthew Doty (2023-), Notre Dame
Orbital Stability of High-Multiplicity Planetary Systems with Various Architectures
Aaron Householder (2022-2023), Notre Dame REU
Mass and radius diversity of the sub-Neptune sized planets in Kepler-105 revealed through RVs and TTVs, The Inconsistent Use of Angles in the RV Equation (manuscript available here)
Andrew Langford (2021-2023), Notre Dame
A Dynamical Systems Approach to the Theory of Circumbinary Orbits in the Circular Restricted Problem (published in The Astronomical Journal)
Thomas Vandal (2018), U. Montreal
Masses and Orbits of the Beta Pictoris Planets
Merrin Peterson (2017), U. Montreal
Upper limits on spectral features from water in 51 Pegasi b from archival Keck-HIRES spectra (summer project)
Laura Daclison (2018), Waipahu High School
Maunakea Scholars Program: Properties of the Kepler Circumbinary Systems from Keck Observations
Keck Planet Hunter Collaboration
My extended research group includes investigators from various universities who are using the W. M. Keck Observatory to discover and characterize exoplanets and their host stars with high-resolution spectroscopy. Group activities include frequent observing on Keck, observer training, data management, and of course, analysis of the planets and stars that are so dear to us!
Keck Planet Hunters, 2019
Back row, L to R: Howard Isaacson, Sean Mills, Lee Rosenthal, Erik Petigura, Andrew Howard, Dan Huber, BJ Fulton. Front row, L to R: Lauren Weiss, Lea Hirsch, Ryan Rubenzahl, Molly Kosiarek, Aida Behmard, Sam Grunblatt
Resources
Are you interested in joining our group? Check out our student-advisor research contract!
Student-Advisor Research Contract
grad_student_contract.pdfPrevious Group Photos
Astroweiss Group, 2022
L to R: Andrew Langford, Matthias He, Alex Thomas, Lauren Weiss, Aaron Householder, Casey Brinkman, David Shaw.