Near-infrared excess and emission characteristics of classical Be stars

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

Classical Be (CBe) stars are fast-rotating emission-line stars associated with infrared excess often attributed to plasma free-free emission. A few with exceptionally large near-infrared excess, namely with (J - H) and (H - K s) both greater than 0.6 mag, however, must be accounted for by thermal emission from circumstellar dust. From 2007 to 2009, spectra of more than 100 CBe stars have been collected. We present some of these spectra and discuss how temporal correlation (or lack of) among spectral features would provide possible diagnosis of the origin of the CBe phenomena.

原文???core.languages.en_GB???
主出版物標題Active OB stars
主出版物子標題structure, evolution, mass loss, and critical limits
發行者Cambridge University Press
頁面404-405
頁數2
版本S272
ISBN(列印)9780521198400
DOIs
出版狀態已出版 - 7月 2010

出版系列

名字Proceedings of the International Astronomical Union
號碼S272
6
ISSN(列印)1743-9213
ISSN(電子)1743-9221

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