I am an Astroparticle Physicist specializing in indirect dark matter searches, high-energy astrophysics and observational cosmology. My expertise centers on Bayesian statistical modeling, dark matter phenomenology, and analyzing data from ground- and space-based observatories.

I recently completed my M.Sc. at the University of Oslo, where I conducted research within the MAGIC Collaboration focused on constraining dark matter density distributions using advanced computational and statistical methods. I am currently preparing my profile and sharing my research portfolio as I pursue a PhD in Astroparticle Physics, Cosmology, or High-Energy Physics.

🌐 Personal Webpage: https://ivanvillegas7.github.io/

• Astroparticle Physics & Dark Matter: Indirect dark matter detection, dark matter halo modeling (Einasto, Burkert, Zhao-Hernquist), and J-factor computations.
• Cosmology & Astrophysics: Cosmic Microwave Background (CMB) power spectrum analysis, CMB polarization experiments, exoplanet transit modeling, galaxy formation and evolution, quasars, AGNs and blackholes.
• Statistical Inference & Computation: Bayesian analysis, Markov chain Monte Carlo (MCMC) methods, and Monte Carlo simulations.
• Instrumentation & Signal Processing: Telescope operations, detector response optimization, and systematic noise characterization.

• Languages: Python, C++, MATLAB, Linux/Unix Shell and LaTeX.
• Libraries & Frameworks: NumPy, SciPy, Matplotlib, pandas, ROOT, CLUMPY.
• Data Analysis & Modeling: Bayesian Jeans analysis, spherical harmonic decomposition, time-series analysis.

• Description: The open-source pipeline for my Master's Thesis project. Features the numerical implementation and comparison of various dark matter density profiles (Einasto, NFW, cored models) and the calculation of astrophysical J-factors for the globular cluster M15 using CLUMPY. It includes stellar kinematics modeling and a study of tidal effects on expected $\gamma$-ray fluxes.
• Keywords: Astroparticle Physics, Bayesian Inference, MCMC, CLUMPY, Python.

• Description: A numerical implementation for computing the CMB temperature angular power spectrum using public cosmological data. Features spherical harmonic decomposition and direct comparison with theoretical predictions.
• Keywords: Python, Cosmology, Numerical Modeling, Data Analysis.

• Description: The full Python pipeline developed for my Bachelor's Thesis. Implements transit detection algorithms and data-cleaning median filters to isolate exoplanet transit signals from Kepler space mission photometric data. Characterizes planetary parameters and models systematic noise sources or stellar variability.
• Keywords: Astrophysics, Transit Photometry, Signal Processing, Data Analysis, Python.

• Description: Undergraduate research project developed during my internship at the Instituto de Física de Cantabria (IFCA). Focused on the design, characterization, and systematic effect reduction of an on-board calibration source for CMB polarization experiments.
• Keywords: Instrumentation, Calibration, Signal Processing, Cosmology.

• Description: Python-based numerical solvers for the time-independent Schrödinger equation in a box across single, double, and triple-slit configurations. Includes custom scientific visualization tools for wavefunctions and energy spectra.
• Keywords: Computational Physics, Quantum Mechanics, Visualization.

• 🎓 M.Sc. in Nuclear and Particle Physics – University of Oslo (Thesis: Analysis of the dark matter density profile of the globular cluster M15; J-factor estimation utilizing Einasto, Burkert, and Zhao-Hernquist profiles).
• 🎓 B.Sc. in Fundamental Physics – University of Cantabria (Thesis: Simulación, detección y caracterización de tránsitos de exoplanetas con la misión espacial Kepler).
• 📝 Publications: Co-author & Corresponding Author of the forthcoming MAGIC Collaboration manuscript: "Searches for annihilating dark matter signals from the globular cluster M15 with MAGIC" (In preparation).
• 🗣️ Selected Talks: Contributed oral presentations at the MAGIC+LST F2F Science Meeting 2025 (Garching), 28th Nordic Particle Physics Meeting 2025 (Svingvoll), and MAGIC General Meeting 2024 (Łódź).
• 🔭 Operations: Completed a 6-week technical shift at the Observatorio del Roque de los Muchachos (La Palma), contributing to MAGIC telescope operations, data-taking, and troubleshooting.

• 💼 Thesis Links: M.Sc. Thesis | B.Sc. Thesis
• 📧 Email: [email protected]
• 🔗 LinkedIn: linkedin.com/in/ivánvillegaspérez
• 🆔 ORCID: 0009-0001-2300-603X