Gaia's view of the lambda Boo star puzzle

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F17%3A00099897" target="_blank" >RIV/00216224:14310/17:00099897 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1093/mnras/stw3141" target="_blank" >http://dx.doi.org/10.1093/mnras/stw3141</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/stw3141" target="_blank" >10.1093/mnras/stw3141</a>

Result language
angličtina
Original language name
Gaia's view of the lambda Boo star puzzle
Original language description
The evolutionary status of the chemically peculiar class of. Boo stars has been intensely debated. It is now agreed that the. Boo phenomenon affects A stars of all ages, from star formation to the terminal age main sequence, but the cause of the chemical peculiarity is still a puzzle. We revisit the debate of their ages and temperatures in order to shed light on the phenomenon, using the new parallaxes in Gaia Data Release 1 with existing Hipparcos parallaxes and multicolour photometry. We find that no single formation mechanism is able to explain all the observations, and suggest that there are multiple channels producing lambda Boo spectra. The relative importance of these channels varies with age, temperature and environment.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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