MY RESEARCH
I am currently working studying the atmospheric variability in brown dwarfs from spectral type L to T. I use data from the HST and some terrestrial telescopes to determine spectral indices that can provide us with a priori information on the atmospheric variability in these objects. We also want to compare our results with synthetic spectra designed with computational models such as PHOENIX.
Brown dwarfs
Master Thesis | Modeling of brown dwarf atmospheres
We seek to reproduce the spectral variability we observe, with theoretical models, to understand the physics of brown dwarf atmospheres, and to confirm the spectral index method designed in Ashraf et al. (2022) and Oliveros-Gomez et al. (2022).
Supervisors:
PhD. Dennis Jack
Brown dwarfs
Project | Variability in T-type brown dwarfs
Within the framework of the RECA 2021 Internship, this project began with the supervision of Dr. Elena Manjavacas. We designed a method to detect variability in T-type brown dwarfs, with the spectral indices method, from a single spectrum, without the need for a photometric analysis that requires a long observation time in telescopes.
Zeta
Aurigae
Project | binary star system
In the framework of my undergraduate thesis in physics, the columnar mass density at different atmospheric heights of the chromosphere of the giant star of the binary system Zeta Aurigae was calculated. Its variations in the last chromospheric eclipse of autumn 2019 were analyzed and the results were compared with old eclipses of this system (+70 years of observations).
Supervisors:
Dr. Klaus-Peter Schröder
Publications
An Informed and Systematic Method to Identify Variable mid-L dwarfs
Submitted
Natalia Oliveros-Gomez , Elena Manjavacas, Daniella C. Bardalez-Gagliuffi, Johanna M. Vos, Jacqueline K. Faherty, Theodora Karalidi