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@article{1406896, author = {Murphy, Simon and Paunzen, Ernst}, article_location = {Oxford}, article_number = {1}, doi = {http://dx.doi.org/10.1093/mnras/stw3141}, keywords = {accretion; accretion discs; asteroseismology; stars: chemically peculiar; circumstellar matter; stars: distances; ISM: clouds}, language = {eng}, issn = {0035-8711}, journal = {Monthly Notices of the Royal Astronomical Society}, title = {Gaia's view of the lambda Boo star puzzle}, volume = {466}, year = {2017} }
TY - JOUR ID - 1406896 AU - Murphy, Simon - Paunzen, Ernst PY - 2017 TI - Gaia's view of the lambda Boo star puzzle JF - Monthly Notices of the Royal Astronomical Society VL - 466 IS - 1 SP - 546-555 EP - 546-555 PB - OXFORD UNIV PRESS SN - 00358711 KW - accretion KW - accretion discs KW - asteroseismology KW - stars: chemically peculiar KW - circumstellar matter KW - stars: distances KW - ISM: clouds N2 - 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. ER -
MURPHY, Simon a Ernst PAUNZEN. Gaia's view of the lambda Boo star puzzle. \textit{Monthly Notices of the Royal Astronomical Society}. Oxford: OXFORD UNIV PRESS, 2017, roč.~466, č.~1, s.~546-555. ISSN~0035-8711. Dostupné z: https://dx.doi.org/10.1093/mnras/stw3141.
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