Publications [LaTeX]
Papers
International Journals
1 - Rapidly spinning dark matter-admixed neutron stars
L. Cipriani, E. Giangrandi, V. Sagun, D.D. Doneva, S.S. Yazadjiev
Phys. Rev. D 111(12), 123005 (2025)
2 - The Impact of Asymmetric Dark Matter on the Thermal Evolution of Nucleonic and Hyperonic Compact Stars
E. Giangrandi, A. Avila, V. Sagun, O. Ivanytskyi, C. Providencia
Particles 7 (1), 179-200 (2024)
3 - Impact of dark matter on tidal signatures in neutron star mergers with the Einstein Telescope
H. Koehn, E. Giangrandi, N. Kunert, R. Somasundaram, V. Sagun, T. Dietrich,
Phys. Rev. D 110 (10), 103033 (2024)
4 - General relativistic magnetohydrodynamic simulations with BAM: Implementation and code comparison
A. Neuweiler, T. Dietrich, B. Brügmann, E. Giangrandi, K. Kiuchi, F. Schianchi, P. Mösta, S. Shankar, B. Giacomazzo, M. Shibata
Phys. Rev. D 110 (8), 084046 (2024)
5 - Rapid neutron star cooling triggered by dark matter
A. Ávila, E. Giangrandi, V. Sagun, O. Ivanytskyi, C. Providência
Mon. Not. R. Astron. Soc. 528(4), 6319-6328 (2024)
6 - The effect of self-interacting bosonic dark matter on neutron star properties
E. Giangrandi, V. Sagun, O. Ivanytskyi, C. Providência, Dietrich T.
Astrophys. J. 953 (1), 115 (2023)
7 - The Effects of Self-interacting Bosonic Dark Matter on Neutron Star Properties
E Giangrandi, V Sagun, O Ivanytskyi, C Providencia, T Dietrich
Astrophys. J. 953(1), 115 (2023)
8 - What Is the Nature of the HESS J1731-347 Compact Object?
V Sagun, E Giangrandi, T Dietrich, O Ivanytskyi, R Negreiros, C Providencia
Astrophys. J. 958 (1), 49 (2023)
Proceedings
International Conferences
9 - How does dark matter affect compact star properties and high density constraints of strongly interacting matter
Violetta Sagun, E. Giangrandi, O. Ivanytskyi, C. Providência, T. Dietrich
EPJ Web Conf., Proceedings of the 15th Quark Confinement and the Hadron Spectrum Conference (QConf) 274, 07009 (2022)
10 - Constraints on the fermionic dark matter from observations of neutron stars
Violetta Sagun, E. Giangrandi, O. Ivanytskyi, I. Lopes, K. A. Bugaev
Proceedings of Science (PoS), Proceedings of the Particles and Nuclei International Conference (PANIC2021) 380, 313 (2022)
Communications
Invited
11 - Probing dark matter with neutron stars
Violetta Sagun, Tim Dietrich, Mattia Emma, Edoardo Giangrandi, Oleksii Ivanytskyi, Ilidio Lopes, Francesco Pannarale, Constança Providência, Federico Schianchi
at the IPA2022: Interplay between Particle and Astroparticle physics 2022, Vienna University of Technology, Vienna, Austria, 5 - 9 September (2022)
12 - Constraints on dark matter from observations of neutron stars and their mergers
Violetta Sagun, Tim Dietrich, Mattia Emma, Edoardo Giangrandi, Oleksii Ivanytskyi, Ilidio Lopes, Francesco Pannarale, Constança Providência, Federico Schianchi
Invited seminar at the Gr@v group, University of Aveiro, Portugal, 19 October (2022)
13 - Impact of dark matter on compact stars and their merger dynamics
Violetta Sagun, Tim Dietrich, Mattia Emma, Edoardo Giangrandi, Oleksii Ivanytskyi, Ilidio Lopes, Francesco Pannarale, Constança Providência, Federico Schianchi
Invited seminar at the Laboratoire de Physique des 2 infinis Irène Joliot-Curie – IJCLab, Université Paris-Saclay, France, 5 November (2022)
Oral
14 - Probing dark matter with neutron stars and their mergers
V. Sagun, T. Dietrich, M. Emma, E. Giangrandi, O. Ivanytskyi, I. Lopes, F. Pannarale, C. Providência, H. Rüter, F. Schianchi, W. Tichy
at the Dark Matter 2023: From the Smallest to the Largest Scales conference, Santander, Spain, May 29 - June 2, 2023. (2023)
15 - The effect of dark matter on the properties of neutron stars
V. Sagun, T. Dietrich, M. Emma, E. Giangrandi, O. Ivanytskyi, I. Lopes, F. Pannarale, C. Providência, H. Rüter, F. Schianchi, W. Tichy
at the XXXIII National Meeting of Astronomy and Astrophysics (ENAA), University of Coimbra, Coimbra, Portugal, 7-9 September, 2023. (2023)
16 - What is the nature of the HESS J1731-347 compact object? Does it confirm the early deconfinement phase transition?
V. Sagun, E. Giangrandi, T. Dietrich, O. Ivanytskyi, R. Negreiros, C. Providência
at the 19th International Conference on QCD in Extreme Conditions (XQCD 2023), University of Coimbra, Coimbra, Portugal, 26 - 28 July 2023. (2023)
17 - Probes of dark matter with neutron stars and their mergers
V. Sagun, A. Ávila, T. Dietrich, M. Emma, E. Giangrandi, O. Ivanytskyi, I. Lopes, C. Providência, H. Rüter, W. Tichy
at the Department of Physics at Royal Holloway University of London, London, United Kingdom, 30 November 2023. (2023)
18 - Probes of dark matter with neutron stars and their mergers
V. Sagun, A. Ávila, T. Dietrich, M. Emma, E. Giangrandi, O. Ivanytskyi, I. Lopes, C. Providência, H. Rüter, W. Tichy
at the Theory Astrophysics and Gravity (STAG) Research Centre, University of Southampton, Southampton, United Kingdom, 7 December 2023. (2023)
19 - Impact of asymmetric fermionic and bosonic dark matter on neutron star properties
Violetta Sagun, Oleksii Ivanytskyi, Edoardo Giangrandi
at the Institute for Nuclear Theory workshop (INT-20R-1B) “The r-process and the nuclear EOS after LIGO-Virgo’s third observing run”, Institute for Nuclear Theory, Seattle, USA, 23 - 27 May (2022)
20 - Compact stars as dark matter probes
Violetta Sagun, T. Dietrich, M. Emma, E. Giangrandi, O. Ivanytskyi, I. Lopes, F. Pannarale, C. Providência, F. Schianchi
at the Kashiwa Dark Matter symposium,
University of Tokyo, Tokyo, Japan, November 29 - December 2 (2022)
21 - Effect of dark matter on observable neutron star’s properties and its discrimination from the strongly interacting matter equation of state
Violetta Sagun, Tim Dietrich, Mattia Emma, Edoardo Giangrandi, Oleksii Ivanytskyi, Ilidio Lopes, Francesco Pannarale, Constança Providência, Federico Schianchi
at the 18th International Conference on QCD in Extreme Conditions (XQCD 2022), Norwegian University of Science and Technology, Trondheim,
Norway, 27 - 29 July (2022)
22 - How dark matter affects compact star’s properties and constraints we put on strongly interacting matter at high densities
Violetta Sagun, Tim Dietrich, Mattia Emma, Edoardo Giangrandi, Oleksii Ivanytskyi, Ilidio Lopes, Francesco Pannarale, Constança Providência, Federico Schianchi
at the “XVth Quark Confinement and the Hadron Spectrum” conference, University of Stavanger, Stavanger, Norway, 1 - 6 August (2022)
23 - The effect of dark matter on compact stars and constraints we put on strongly interacting matter at high densities
Violetta Sagun, Tim Dietrich, Mattia Emma, Edoardo Giangrandi, Oleksii Ivanytskyi, Ilidio Lopes, Francesco Pannarale, Constança Providência, Federico Schianchi
at the Institute for Nuclear Theory workshop (INT-22-2b) “Dark Matter in Compact Objects, Stars, and Low-Energy Experiments ”, Institute for Nuclear Theory, Seattle, USA, 1 August - 2 September (2022)
24 - The impact of dark matter on compact stars
Edoardo Giangrandi, Violetta Sagun, Constança Providência, Tim Dietrich
at the 10th IDPASC School - IDPASC (Nazarè, Portugal), online, 6-17 September (2021)
25 - Impact of asymmetric bosonic dark matter on neutron star properties
Edoardo Giangrandi, Violetta Sagun, Oleksii Ivanytskyi, Constança Providência, Tim Dietrich
XII Conference of Young Scientists "Problems of Theoretical Physics" - Bogolyubov Institute for Theoretical Physics (Kyiv, Ukraine), online, 21-23 December (2021)
26 - Probing strongly interacting matter properties with compact objects
Edoardo Giangrandi, Violetta Sagun, Oleksii Ivanytskyi, Constança Providência, Tim Dietrich
at the 21th Zimányi School, Winter Workshop on Heavy-Ion Physics, Budapest, Hungary, 6-10 December (2021)
Poster
27 - The effect of dark matter on neutron stars and their merger dynamics
Violetta Sagun, E. Giangrandi, O. Ivanytskyi, T. Dietrich, C. Providência
at the Gravitational Wave Physics and Astronomy Workshop 2022 (GWPAW), Melbourne, Australia, 5-9 December (2022)
28 - GW190814 secondary component as a dark matter admixed neutron star
Violetta Sagun, Oleksii Ivanytskyi, Edoardo Giangrandi
at the PHAROS Conference 2022, Rome, Italy, 16 - 19 May (2022)
29 - Probing dark matter with neutron stars
Violetta Sagun, O. Ivanytskyi, D. R. Karkevandi, S. Shakeri, E. Giangrandi, I. Lopes
at the Gravitational Wave Physics and Astronomy Workshop (GWPAW 2021),
Hannover, Germany, 14-17 December (2021)
Thesis supervised
Knowledge Transfer
Projects
Management
Outreach
- Simulating Neutron Stars Oscillations (20/Jan/2022)
- Spritz: Simulating Isolated Neutron Stars with Neutrino Emission (21/Oct/2021)
