A New Approach to Find the Böhm-Vitense gap

J 2024

A New Approach to Find the Böhm-Vitense gap

RAMEZANI, Tahereh, Ernst PAUNZEN, Martin PIECKA a Michal KAJAN

Základní údaje

Originální název

A New Approach to Find the Böhm-Vitense gap

Autoři

RAMEZANI, Tahereh (364 Írán, domácí), Ernst PAUNZEN (40 Rakousko, domácí), Martin PIECKA (703 Slovensko) a Michal KAJAN (703 Slovensko, domácí)

Vydání

Bulgarian Astronomical Journal, Institute of Astronomy and NAO, 2024, 1313-2709

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Bulharsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL URL

Impakt faktor

Impact factor: 0.400 v roce 2022

Organizační jednotka

Přírodovědecká fakulta

UT WoS

001266892300001

Klíčová slova anglicky

radiative transfer; convection; Hertzsprung–Russell and colour–magnitude diagrams; open clusters and associations: general

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 20. 9. 2024 11:03, Tahereh Ramezani

Anotace

V originále

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.

Návaznosti

GA23-07605S, projekt VaV

Název: Osud galaktických otevřených hvězdokup

Investor: Grantová agentura ČR, Osud galaktických otevřených hvězdokup

Citovat

RAMEZANI, Tahereh, Ernst PAUNZEN, Martin PIECKA a Michal KAJAN. A New Approach to Find the Böhm-Vitense gap. Bulgarian Astronomical Journal. Institute of Astronomy and NAO, 2024, roč. 41, č. 2024, s. 3-18. ISSN 1313-2709.

@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.

Podrobný výpis o publikaci