We are part of the Department of Theoretical Physics and Astrophysics at Masaryk University.
We are processing the Gaia Data Release 3 to study the kinematical and structural characteristics of a statistically significant sample of Galactic open clusters. By analyzing astrometric and photometric data, we aim to refine member lists and investigate key cluster parameters, including distance, age, reddening, and metallicity.
Our focus is on understanding the Galactic paths and structural properties, such as cluster mass, core and tidal radii, and ellipticities. Additionally, we are identifying tidal tails and lost members to better estimate Present Day Mass and Initial Mass Functions. Our dataset includes 780 open clusters across a broad range of ages, allowing us to explore their evolution and contribution to the Galactic field.
The fate of Galactic open clusters 1/2023 – 12/2024 We will analyse the structures and contents of Galactic open clusters. The project is funded by the Czech Science Foundation.
Recent Publications
2025
Neumannová, K.; Kueß, L.; Paunzen, E.; Bernhard, K.
@article{2025NewA..12002409N,
title = {Lightcurves of stars in the Chamaeleon I association},
author = {K. Neumannová and L. Kueß and E. Paunzen and K. Bernhard},
doi = {10.1016/j.newast.2025.102409},
year = {2025},
date = {2025-11-01},
urldate = {2025-11-01},
journal = {New Astronomy},
volume = {120},
pages = {102409},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
@article{2025Astro...4...15K,
title = {The Status of the Astrophysical Parameters of Upper Main Sequence Stars},
author = {L. Kueß and E. Paunzen},
doi = {10.3390/astronomy4030015},
year = {2025},
date = {2025-08-01},
urldate = {2025-08-01},
journal = {Astronomy},
volume = {4},
number = {3},
pages = {15},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Bertone, E.; Hümmerich, S.; Chávez, M.; Paunzen, E.; Bernhard, K.; Olmedo, D.; Olmedo, M.; Mamajek, E. E.; Portilla-Narvaez, O. M.; Sabala, J. L.; Castro, A. S.
@article{2025MNRAS.538.3247Bb,
title = {GALEX UV survey of magnetic chemically peculiar stars in the Kepler prime field},
author = {E. Bertone and S. Hümmerich and M. Chávez and E. Paunzen and K. Bernhard and D. Olmedo and M. Olmedo and E. E. Mamajek and O. M. Portilla-Narvaez and J. L. Sabala and A. S. Castro},
doi = {10.1093/mnras/staf310},
year = {2025},
date = {2025-04-01},
urldate = {2025-04-01},
journal = {Monthly Notices of the RAS},
volume = {538},
number = {4},
pages = {3247-3262},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
@article{2025CoSka..55a..60R,
title = {Ultraviolet photometry and reddening estimation of 105 galactic open clusters},
author = {T. Ramezani and E. Paunzen and A. Gorodilov and O. I. Pintado},
doi = {10.31577/caosp.2025.55.1.60},
year = {2025},
date = {2025-02-01},
journal = {Contributions of the Astronomical Observatory Skalnate Pleso},
volume = {55},
number = {1},
pages = {60-68},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
@article{2025MNRAS.536...72F,
title = {Chemically peculiar stars as members of open clusters},
author = {N. Faltová and D. Jadlovský and L. Kueß and M. Labaj and M. Mesarč and P. Mondal and K. Neumannová and E. Paunzen and M. Prišegen and T. Ramezani and J. Supíková and K. Svačinková and G. Szász and M. Vítková and C. Xia},
doi = {10.1093/mnras/stae2563},
year = {2025},
date = {2025-01-01},
journal = {Monthly Notices of the RAS},
volume = {536},
number = {1},
pages = {72-78},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
