A Census of Chemically Peculiar Stars in Stellar Associations
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00143580" target="_blank" >RIV/00216224:14310/25:00143580 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2674-0346/4/4/20" target="_blank" >https://www.mdpi.com/2674-0346/4/4/20</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/astronomy4040020" target="_blank" >10.3390/astronomy4040020</a>
Alternative languages
Result language
angličtina
Original language name
A Census of Chemically Peculiar Stars in Stellar Associations
Original language description
The pre-main-sequence evolution of the chemically peculiar (CP) stars on the upper main sequence is still a vast mystery and not well understood. Our analysis of young associations and open clusters aims to find (very) young CP stars to try to put a lower boundary on the age of such objects. Using three catalogues of open clusters and associations, we determined membership probabilities using HDBSCAN. The hot stars from this selection were submitted to synthetic Δa photometry, spectral, and light curve classification to determine which ones are CP stars and candidates. Subsequently, we used spectral energy distribution fitting and emission line analysis to check for possible PMS CP stars. The results were compared to the literature. We detected 971 CP stars and candidates in 217 clusters and associations. A relatively large fraction, ∼10% of those, show characteristics of PMS CP stars. This significantly expands the known list of candidate PMS CP stars, bringing us closer to solving the mystery of their origin.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy
ISSN
2674-0346
e-ISSN
2674-0346
Volume of the periodical
4
Issue of the periodical within the volume
4
Country of publishing house
CH - SWITZERLAND
Number of pages
29
Pages from-to
1-29
UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-105025901058