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Faculty of Mathematics

 

Career

  • 2025- to date: Research Professor, DAMTP, University of Cambridge
  • 2024- to date: Honorary Professor, University of Leicester
  • 2012-2025:  Senior Research Associate, DAMTP, University of Cambridge
  • 2008-2012: STFC Advanced Fellow, DAMTP, University of Cambridge
  • 2007-2008: PPARC/STFC  Advanced Fellow, MSSL, University College London
  • 2004-2007: Research Fellow, MSSL, University College London
  • 2002-2004:  Research Associate, DAMTP, University of Cambridge
  • 2001:  Research Associate,  University of Florence, Italy
  • 1999-2001:  Research Associate, DAMTP, University of Cambridge

Research

I am a member of the Department of Applied Mathematics and Theoretical Physics  Atomic Astrophysics research group. My current research interests are on energy transfer processes in the solar corona.

Atomic physics calculations and plasma diagnostic techniques applied to XUV spectroscopic observations allow the measurements of plasma parameters such as electron density, temperature, chemical abundances. In conjunction with modeling, they can help us in understanding how magnetic energy is transferred into heat in all varieties of solar coronal features, from active region loops to solar flares.

I have also been working on measuring the solar EUV irradiance and its variations during the last solar cycle, and how these variations can be modeled and models applied to other stars.

I contributed to atomic data calculations (within the UK APAP network), to line identifications and benchmarking atomic data against laboratory and astrophysical spectra, to atomic data distribution via the CHIANTI atomic database and VAMDC.

I have been PI of STFC grants for a while. 

I am the PI for Cambridge of the STFC large award "The Solar Atmospheric Modelling Suite" (SAMS),  aiming to model stellar chromospheres, see  https://sams-project-uk.github.io/about/

 

 

Publications

Modelling Stellar Irradiances – II. Correlations of solar irradiances with proxies of activity along a cycle
E Deliporanidou, G Del Zanna, TN Woods, D Woodraska
– Monthly Notices of the Royal Astronomical Society
(2025)
540,
1765
Evidence of Extreme-ultraviolet Resonant Excitation in the Middle Corona during a Solar Flare
DB Seaton, C Downs, G Del Zanna, MJ West, EMB Thiemann, A Caspi, EE DeLuca, L Golub, JP Mason, R Patel, KK Reeves, YJ Rivera, SL Savage
– Astrophysical Journal
(2025)
985,
89
UK APAP R-Matrix Electron-Impact Excitation Cross-Sections for Modelling Laboratory and Astrophysical Plasma
G Del Zanna, G Liang, J Mao, NR Badnell
– Atoms
(2025)
13,
44
UK APAP R-matrix electron-impact excitation cross-sections for modelling laboratory and astrophysical plasma
GD Zanna, G Liang, J Mao, NR Badnell
(2025)
Reduced atomic models for large-scale computations: Fe XIII near-infrared lines
GD Zanna, SH Dayananda
(2025)
Hinode EIS: Updated In-flight Radiometric Calibration
G Del Zanna, MJ Weberg, HP Warren
– The Astrophysical Journal Supplement Series
(2025)
276,
42
Density-dependent ionization equilibria for carbon with kappa distributions
E Dzifčáková, RP Dufresne, J Dudík, G Del Zanna
– Astronomy and Astrophysics
(2024)
690,
A340
Modelling stellar irradiances I: the transition regions of FGKM stars
E Deliporanidou, G Del Zanna
– Monthly Notices of the Royal Astronomical Society
(2024)
534,
3989
CHIANTI-An Atomic Database for Emission Lines-Paper. XVIII. Version 11, Advanced Ionization Equilibrium Models: Density and Charge Transfer Effects
RP Dufresne, G Del Zanna, PR Young, KP Dere, E Deliporanidou, WT Barnes, E Landi
– The Astrophysical Journal
(2024)
974,
71
Satellite lines from auto-ionizing states of Fe XVI and the problems with the X-ray Fe XVII lines
G Del Zanna, NR Badnell, PJ Storey
– Monthly Notices of the Royal Astronomical Society
(2024)
532,
305
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Research Groups

Astrophysics
Atomic Astrophysics

Room

F1.05

Telephone

01223 337916