Faculty Profiles
Marwan Gebran
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I am an observational astrophysicist. My research interests include the chemical composition of stars in open clusters and in the field, synthetic spectra, binary stars, HgMn stars, and model atmospheres.
I got my PhD from Universite de Montpellier II in 2007. My thesis was entitled "Chemical abundances determination in A/F dwarfs members of open clusters. Constraints on the evolutionary models including transport processes."
I joined the Gaia team from December 2008 till September 2010 at the University of Barcelona (UB) where I worked on the calibration of the photometric instrument of the Gaia space telescope. In fall 2010, I joined the Department of Physics and Astronomy at Notre-Dame University-Louaize (NDU), Lebanon.
In fall 2021, I joined the Department of Chemistry and Physics at Saint Mary's College, Notre Dame, Indiana. I am currently the physics program director.
Education
PhD in Astrophysics, University Montpellier II, France
MS in Astrophysics , University Paul Sabatier, Toulouse, France
BS in Physics, University Saint Joseph, Lebanon
Areas of Expertise
- Stellar astrophysics
- Chemical abundances
- Stellar atmospheres
- Spectroscopy
- Deep learning
Research Interests
- Chemical composition and fundamental parameters of stars in different clusters and age-anomaly relation in A/F stars
- Automated spectral classification, application to large survey.
- Peculiar stars
- Machine and Deep Learning
- Chemical tagging
Courses Recently Taught
- Heat Vibrations and Waves
- Mathematical Methods for Physics
- Thermal and Statistical Physics
- Discovering Astronomy
- Introduction to Astronomy and Astrophysics
- Fundamental of Astrophysics
- Stellar Astrophysics
- Variable Phenomena in Astrophysics
- Electricity and Magnetism
- Artificial intelligence in Science and everyday life
- Computational physics
Professional Experience
- Physics program director at Saint Mary’s College, Notre Dame, IN, USA. 2022 - present
- Associate professor at the Department of Chemistry and Physics, Saint Mary’s College, Notre Dame, IN, USA. 2021 - present
- Chairperson Department of Physics & Astronomy NDU, FNAS–Lebanon. 2018 - 2021
- Fulbright Visiting Scholar Program, Columbia University, NYC-USA. Spring, 2018
- Associate Professor NDU, FNAS–Lebanon. 2016 - 2021
- Assistant Professor NDU, FNAS–Lebanon. 2010 - 2016
- Postdoctoral Fellow University of Barcelona, Departament, DAM), BCN-Spain. 2008 - 2010
Creative and Scholarly Work
- 2022: The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products
- 2022: The Gaia-ESO Public Spectroscopic Survey: Implementation, data products, open cluster survey, science, and legacy
- 2022: The Gaia-ESO Survey: The analysis of the hot-star spectra
- 2022: Deep Learning application for stellar parameters determination: I- Constraining the hyperparameters.
- 2021: The use of Deep Learning in stellar classification
- 2021: The Gaia spectrophotometric standard stars survey - IV. Results of the absolute photometry campaign
- 2019: The Chemical Compositions of the Two New HgMn Stars HD 30085 and HD 30963: Comparison to χ Lupi A, ν Cap, and HD 174567
- 2019: Sliced Inverse Regression: application to fundamental stellar parameters
- 2019: Pushing Automated Abundance Derivations into the Cool Dwarf Regime: A Test Using Three G and Two K Stars in Praesepe
- 2018: An empirical recipe for inelastic hydrogen-atom collisions in non-LTE calculations
- 2018: A and F stars as probes of outer Galactic disc kinematics
Professional Memberships
International Astronomical Union, IAU
The American Physics Society, APS
The American Astronomical Society, AAS
Sigma-Pi-Sigma Honor Society