MIT Kavli Institute Directory

Rana Ezzeddine

Postdoctoral Scholar

I am a JINA-CEE postdoc researcher. I obtained my Bachelor's degree in physics from the Lebanese university in Beirut, Lebanon in 2008. In 2012, I got my masters degree in Astrophysics from Notre Dame University (NDU) and Université de Saint Joseph in Lebanon (USJ). I was the first student to graduate from this new joint astrophysics program at the time. I obtained a joint graduate fellowship between the University of Montpellier and CNRS-Lebanon in 2012, and I got my PhD degree from the Laboratoire Univers et Particules de Montpellier (LUPM) at the Université de Montpellier in Montpellier, France on December 2015. My PhD thesis was co-supervised by Bertrand Plez from LUPM and Marwan Gebran from NDU.







 

Research interests: 

During my PhD, I worked on determining high precision iron abundances by accurately modeling stellar spectra of cool stars using non-Local Thermodynamic Equilibrium (non-LTE) approach. I worked on proposing a new method to estimate the inelastic hydrogen collisional rates with iron in the lack of quantum calculations. At MIT, I will continue working on determining accurate abundances of r-process elements in metal-poor stars in the Milky way and dwarf galaxies. This would help us better understand their chemical evolution and eventually untangle the formation processes of the Milky Way.

Representative publications: 

The role of inelastic hydrogen collisions in iron abundance of cool stars: Introducing the Quantum Fitting Method (QFM)- in prep.
Non-LTE iron abundances in cool stars: The role of hydrogen collisions- Rana Ezzeddine, Thibault Merle, Bertrand Plez 2015

Contact Information

t: 617-253-2354
e: ranae@mit.edu

Education

2008, Bachelor's degree in Physics, Lebanese University, Beirut, Lebanon; 2012, Masters degree in Astrophysics, Notre Dame University (NDU) and Université de Saint Joseph, Lebanon (USJ); 2015, Laboratoire Univers et Particules de Montpellier (LUPM) at the Université de Montpellier in Montpellier, France.