About Me
Hello, and welcome! I am a Research Software Engineer and Solar Physicist working in the Rosseland Centre for Solar Physics at Oslo University.
My general areas of interest are Bayesian statistics, Deep Learning and Solar Physics. My research focuses on understanding solar phenomena and their origin through the analysis of spectropolarimetric observations. Thanks for stopping by!
I also develop open interactive tools — try Solar SIR, a browser-based LTE spectral synthesis app built on the SIR inversion code.
News
- [May 20, 2026] New preprint: Accelerating 3D Non-LTE Synthesis with Graph Neural Networks [arXiv] [project].
- [May 15, 2026] New preprint: IRIS NUV diagnostics for Ellerman bombs: spectral properties, thermodynamics, and formation height [arXiv] [project].
- [April 15, 2026] Accepted paper: Thermodynamic and magnetic evolution of an eruptive C-class solar flare observed with SST/TRIPPEL-SP [Journal] [arXiv] [project].
- [February 20, 2026] Accepted paper: Active chromospheric fibril singularity: Coordinated observations from Solar Orbiter, SST, and IRIS [Journal] [arXiv] [project].
- [February 10, 2026] New preprint: Inspectorch: Efficient rare event exploration in solar observations [arXiv] [project].
Publications
Accelerating 3D Non-LTE Synthesis with Graph Neural Networks
Numerical modeling of 3D non-local thermodynamic equilibrium (non-LTE) radiative transfer is a significant computational bottleneck in …
IRIS NUV diagnostics for Ellerman bombs: spectral properties, thermodynamics, and formation height
We establish robust diagnostics for identifying Ellerman bombs (EBs) using Near-Ultraviolet (NUV) spectra from the Interface Region …
Thermodynamic and magnetic evolution of an eruptive C-class solar flare observed with SST/TRIPPEL-SP
We investigate the physical processes driving a C5.1-class solar flare and filament eruption in active region NOAA 12561 on July 7, …
Active chromospheric fibril singularity: Coordinated observations from Solar Orbiter, SST, and IRIS
We report the discovery of a ‘chromospheric fibril singularity,’ a new feature observed in the solar chromosphere using …
Recent Talks
Presentation
October 27-30, 2025
How can machine learning and inversion techniques help with understanding the low solar atmosphere?
Joint MUSE/IRIS science team meeting
•
SETI Institute, Mountain View (CA), USA
Presentation
13 - 21 July 2024
Advances in machine learning applications on photospheric and chromospheric studies
45th COSPAR Scientific Assembly
•
Busan, South Korea
Presentation
2024
The Force Awakens: Unleashing Deep Learning in Solar Physics
Oslo AI Product Lab
•
Oslo, Norway, May 25
Presentation
2024
Deep Learning 2.0: Combining physics-based models with data-driven solutions
Lockheed Martin Solar and Astrophysics Laboratory (LMSAL)
•
California, USA, May 16
Presentation
2023
Deep Learning 2.0: Combining physics-based models with data-driven solutions
Instituto de Astrofísica de Canarias (IAC)
•
Tenerife, Spain, October 15
Presentation
2023
Deep Learning 2.0: Combining physics-based models with data-driven solutions
Leibniz-Institut für Sonnenphysik (KIS)
•
Freiburg, Germany, June 5
Presentation
2023
The Potential of Machine Learning for Efficient Analysis of Solar Observations and simulations
ITA Colloquium 2023
•
Oslo, Norway, March 17
Presentation
2023
Differentiable programming for spectra modeling and inference
RoCMI 2023
•
Longyearbyen, Svalbard, February 26 - March 2
Presentation
2023
Unleashing the Potential of Machine Learning for Efficient Analysis of Solar Observations
Universitat de les Illes Balears
•
Spain, February 17
Presentation
2022
Application of machine learning and neural networks to data processing in solar physics
Solar Space Plasma seminar
•
National Astronomy Observatory of Japan, Tokyo, Japan, December 2
Presentation
2022
Unlocking the potential of deep learning for the analysis of spectropolarimetric observations
Solar Polarization Workshop 10 (SPW10)
•
Kyoto, Japan, November 7-11
Presentation
2022
Application of machine learning and neural networks to data processing
Hinode-15 / IRIS-12
•
Czech Republic, Prague, September 19-23
Experience
Research Software Engineer in Solar Physics
Rosseland Centre for Solar Physics, RoCS
Postdoctoral researcher
Rosseland Centre for Solar Physics, RoCS
Postdoctoral researcher
Institute for solar physics, ISP
PhD in Astrophysics
Universidad de La Laguna
Master in Astrophysics
Universidad de La Laguna
Degree in Physics
Universidad de La Laguna
Thesis & Dissertations
Ph.D. Thesis
Sep 2018
Analysis of the magnetic and dynamic structure of solar filaments
Universidad de La Laguna
•
Tenerife, Spain
M.Sc. Thesis
Jun 2015
Inversion techniques and their application to spectropolarimetric data of the solar photosphere and chromosphere
Universidad de La Laguna
•
Tenerife, Spain
Fellowship Thesis
Jun 2014
Inversion of spectropolarimetric data
Universidad de La Laguna
•
Tenerife, Spain
B.Sc. Thesis
Jun 2013
Introduction to solar spectropolarimetric data
Universidad de La Laguna
•
Tenerife, Spain
Contact
- carloskdb@gmail.com | carlos.diaz@astro.uio.no