M.Sc. Astrophysics & Cosmology Student at Università degli Studi di Padova (UNIPD) • Padua, Italy
B.Sc. Physics (Theoretical & Computational) from Universitas Gadjah Mada (UGM) • Yogyakarta, Indonesia

🪐 Interactive Portfolio Workspace: Explore the Windows 98 Scientific Desktop Site

I am an astrophysicist and graduate researcher based in Padua, Italy, pursuing my Master of Science in Astrophysics and Cosmology at the Università degli Studi di Padova (Department of Physics and Astronomy "Galileo Galilei"). Previously, I completed my Bachelor of Science in Physics at Universitas Gadjah Mada (UGM) in Indonesia, concentrating on theoretical, computational physics, and astronomical data analysis.

My academic trajectory centers on:

• Observational Astrophysics & AGN: Investigating Active Galactic Nuclei (AGN), relativistic jets, and positional stability of reference quasars.
• Astronomical Interferometry: Multi-element aperture synthesis, UV-plane spatial frequency sampling, van Cittert-Zernike theorem, and high-resolution instrumentation (ALMA, VLTI, and Intensity Interferometry).
• Radio Astronomy & Instrumentation: Sub-millimeter detection devices and radio continuum/spectral line data reduction.
• Statistical Signal Analysis: Frequency and positional stability metrics using Overlapping Allan Standard Deviation $\sigma(\tau)$ to isolate white noise, flicker noise, and random-walk processes.

Implementation of Allan Standard Deviation Technique in Stability Analysis of 4C31.61 Quasar Position
Muthmaina, J. S., Huda, I. N., & Palupi, D. S. (2024)
Journal of Physics: Conference Series, Volume 2773, 012007. IOP Publishing.
🔗 DOI: 10.1088/1742-6596/2773/1/012007  |  🔗 arXiv: 2401.12325 [astro-ph.GA]

• Evaluated 33 years of Very Long Baseline Interferometry (VLBI) observations (1990–2023, 6,342 sessions) from the International VLBI Service for Geodesy and Astrometry (IVS).
• Modeled ICRF-3 reference coordinates using Vienna VLBI and Satellite Software (VieVS) and validated against the Paris Observatory Geodetic VLBI Center.
• Demonstrated white noise dominance ($\tau^{-1/2}$ slope) at short sampling intervals ($\tau \lesssim 10^3$ days), establishing the core positional stability of Quasar 4C31.61 (2201+315) for International Celestial Reference Frame realizations.

• Former Research Intern: National Research and Innovation Agency (BRIN), Research Center for Computation (Bandung/Bogor, Indonesia)
  VLBI astronomical time-series processing, coordinate transformation, and reference frame kinematics.
• Graduate Coursework at UNIPD:
  • Astronomical Interferometry (Spatial coherence, synthesis imaging, visibility calibration, interferometric arrays)
  • Astrophysics Laboratory 1: High Energy Instrumentation (X-ray/gamma-ray detectors, calibration, spectral timing analysis)
  • Stellar Astrophysics (Stellar structure, nucleosynthesis, stellar evolution)
  • General Relativity & Mathematical Methods (Curved spacetime, tensor calculus, numerical modeling)

ASTROPHYSICAL DATA PIPELINE
├── Languages & Computing : Python 3, C, Shell, POSIX
├── Astronomical Libraries: Astropy, NumPy, SciPy, Matplotlib, Polars, Pandas
├── Machine Learning      : Scikit-learn, clustering (K-Means), regression
├── Astrometry & Geodesy  : VieVS (Vienna VLBI Software), IVS/Paris Observatory pipelines
├── Typesetting & Math    : LaTeX (moderncv, revtex, mnras, iopart), BibTeX, MathJax
└── Knowledge Synthesis   : Obsidian Zettelkasten, Maps of Content (MOC), Graph Analysis

• Substack — yourastrophysicist
  Essays weaving observational astrophysics, history and philosophy of science, epistemological reflections, and cultural discourse.
• YouTube Channel — Observationally Speaking (@obspeaking)
  Video essays bringing warm, visually immersive cosmological storytelling and physics explanations to curious minds worldwide.
• Community Advocacy — Sadar Setara (Garut, Indonesia)
  Founder and community coordinator advocating for gender equality, social equity, education access, and collaborative grassroots empowerment.
• Creative & Arts: Electronic music production and DJing, literature study (especially Fyodor Dostoevsky), and photography for narrative advocacy.

• 🌐 Interactive Portfolio: yourastrophysicist.github.io/yourastro
• 📝 Substack: yourastrophysicist.substack.com
• 🎥 YouTube: @obspeaking
• 📸 Instagram: @your.astrophysicist
• 💼 LinkedIn: in/syafaqmuth
• ✉️ Academic Email: jessicasyafaq.muthmaina@studenti.unipd.it

[SYSTEM STATUS: ONLINE] [ICRF POINT: 2201+315] [VLBI BAND: 8.4 GHz] [HOST: UNIPD PADOVA]