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@article{2412800,
author = {Ramezani, Tahereh and Paunzen, Ernst and Piecka, Martin and Kajan, Michal},
article_number = {2024},
keywords = {radiative transfer; convection; Hertzsprung–Russell and colour–magnitude diagrams; open clusters and associations: general},
language = {eng},
issn = {1313-2709},
journal = {Bulgarian Astronomical Journal},
title = {A New Approach to Find the Böhm-Vitense gap},
url = {https://ui.adsabs.harvard.edu/abs/2024arXiv240109264R/abstract},
volume = {41},
year = {2024}
}
TY - JOUR
ID - 2412800
AU - Ramezani, Tahereh - Paunzen, Ernst - Piecka, Martin - Kajan, Michal
PY - 2024
TI - A New Approach to Find the Böhm-Vitense gap
JF - Bulgarian Astronomical Journal
VL - 41
IS - 2024
SP - 3-18
EP - 3-18
PB - Institute of Astronomy and NAO
SN - 13132709
KW - radiative transfer
KW - convection
KW - Hertzsprung–Russell and colour–magnitude diagrams
KW - open clusters and associations: general
UR - https://ui.adsabs.harvard.edu/abs/2024arXiv240109264R/abstract
N2 - This paper discusses the Böhm-Vitense gap, a gap in the colours of stars that occurs when the atmosphere changes from radiative to convective in deep layers. We are using different algorithms for detecting gaps in colour-magnitude diagrams (CMDs), including the k-nearest neighbours (k-NN) and UniDip algorithms. We propose using a combination of the k-NN algorithm and the UniDip algorithm and manual verification to identify gaps unlikely to be of a statistical origin. Using the Gaia photometric system, i.e. BP − RP, we took the data of 130 star clusters and searched for gaps in the ranges of 0.40 to 0.47 mag, and 0.56 to 0.60 mag, respectively. We analysed all data statistically and identified the gaps in the individual clusters. Finally, we applied the kernel density estimator to see how the gaps are distributed.
ER -
RAMEZANI, Tahereh, Ernst PAUNZEN, Martin PIECKA a Michal KAJAN. A New Approach to Find the Böhm-Vitense gap. \textit{Bulgarian Astronomical Journal}. Institute of Astronomy and NAO, 2024, roč.~41, č.~2024, s.~3-18. ISSN~1313-2709.
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