Umut Burgaz — Astrophysicist

Research

Type Ia supernovae physics - I study the diversity of explosion mechanisms by analysing spectral and light curve features, ejecta velocity structures, and radiative transfer models to understand how these events originate and evolve.
Host galaxy environment - My work connects supernova properties to their environments by examining host-galaxy stellar masses, star-formation histories, and metallicity trends across different populations.
Precision cosmology - I investigate biases in standardization, Hubble residual systematics, and calibration effects to improve the use of Type Ia supernovae as reliable distance indicators.

ZTF SN Ia DR2 follow-up: Exploring the origin of the Type Ia supernova host galaxy step through Si II velocities Burgaz, U., et al. 2025, Astronomy & Astrophysics (accepted) https://arxiv.org/abs/2509.02687
ZTF SN Ia DR2: Properties of the low-mass host galaxies of Type Ia supernovae in a volume-limited sample Burgaz, U., et al. 2025, Astronomy & Astrophysics https://doi.org/10.1051/0004-6361/202452571
ZTF SN Ia DR2: The spectral diversity of Type Ia supernovae in a volume-limited sample Burgaz, U., et al. 2025, Astronomy & Astrophysics https://doi.org/10.1051/0004-6361/202450386
Light-curve properties of SN 2017fgc and HV SNe Ia Burgaz, U., et al. 2023, Monthly Notices of the Royal Astronomical Society https://doi.org/10.1093/mnras/stab254

You can find all of my publications on NASA-ADS.

You can email me at burgazu [at] tcd.ie