Welcome to my GitHub profile. I am currently pursuing an MA in Physics at Stony Brook University, where I conduct research in Dr. Vivian Miranda’s Cosmology group within the C.N. Yang Institute for Theoretical Physics. My academic journey began at Vassar College with a BA in Astronomy and Physics, and a minor in Mathematics, where I wrote my thesis on spectroscopic analysis of a novel wavelength regime of protoplanetary disks with novel data from JSWT. Throughout, I have been guided by a passion for unraveling the mysteries of our universe through both observation and theory.

• Current Role: MA Physics Student, C.N. Yang Institute for Theoretical Physical, Stony Brook University
• Research Group: Vivian Miranda's Cosmology Research Group
• Undergraduate Degree: BA in Astronomy & Physics (Minor in Mathematics)
• Research Focus: Cosmology, dark energy, and the application of computational techniques to fundamental questions in physics.

• Scientific Computing: Python (data analysis, simulations), C (CLASS Boltzmann solver), Bash/Shell scripting, LaTeX (scientific writing), C++/Fortran (coursework, CAMB).
• Data Science: Spectroscopic data analysis from the James Webb Space Telescope (JWST), SQL (data ingestion and wrangling).
• Research Tools: CLASS (C), CAMB (Fortran), ROOT.

• Dark Energy: Coupled, Dynamical, Smooth, Early/Late DE, DESI DR2 BAO DE models (Thawing, Emergent, Mirage)
• Modified Recombination & Modified Gravity
• Parameterized Post-Friedmann Signatures
• Comparative analysis of CLASS and CAMB cosmology codes
• Machine learning techniques for cosmological parameter inference
• Transfer learning for cosmological emulators

Spectroscopic Water Signature Analysis with JWST: Exploring New Wavelength Regimes
I analyzed spectroscopic data from JWST to search for water signatures in previously unexplored wavelength regimes.
Read my undergraduate thesis here: Senior_Thesis

• Classically trained ballet dancer for 12 years
• Former Captain of the Vassar College Men’s Rowing Team
• Enthusiast of philosophy and open scientific inquiry
• Deeply connected to nature—plants are a constant companion in my life
• Admirer of Carl Sagan and his wisdom

“For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.”
— Carl Sagan, The Demon-Haunted World: Science as a Candle in the Dark

• Email: bela.arwen@stonybrook.edu
• LinkedIn: linkedin.com/in/belaarwen

Thank you for visiting my profile. If you share an interest in cosmology, scientific computing, or simply want to talk about science, nature, or philosophy—I am always happy to connect.