Detailed Information on Publication Record
2017
Gaia's view of the lambda Boo star puzzle
MURPHY, Simon and Ernst PAUNZENBasic information
Original name
Gaia's view of the lambda Boo star puzzle
Authors
MURPHY, Simon (36 Australia) and Ernst PAUNZEN (40 Austria, guarantor, belonging to the institution)
Edition
Monthly Notices of the Royal Astronomical Society, Oxford, OXFORD UNIV PRESS, 2017, 0035-8711
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 5.194
RIV identification code
RIV/00216224:14310/17:00099897
Organization unit
Faculty of Science
UT WoS
000398112400037
Keywords in English
accretion; accretion discs; asteroseismology; stars: chemically peculiar; circumstellar matter; stars: distances; ISM: clouds
Tags
Tags
International impact, Reviewed
Změněno: 13/11/2018 11:14, doc. Ernst Paunzen, Dr.rer.nat
Abstract
V originále
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.
Links
| 7AMB17AT030, research and development project |
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