C,N,O in lambda Boo stars and in composite spectra

Faraggiana, R.; Bonifacio, Piercarlo

doi:10.1051/0004-6361:20042109

C,N,O in lambda Boo stars and in composite spectra

Apr, 2005

Published in:

Astron.Astrophys. 436 (2005) 697

e-Print:

astro-ph/0504102 [astro-ph]

DOI:

10.1051/0004-6361:20042109

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Abstract: (arXiv)

The selective abundance of C, N, O (almost solar) with respect to that of other elements (underabundant) in lambda Boo stars has been interpreted as a characteristic peculiarity of these objects, when considered as single stars. We show here that a similar selective abundance is predicted from the composite spectra resulting from two unresolved stars in the same temperature range as the lambda Boo stars.

STELLAR ATMOSPHERES
CHEMICALLY PECULIAR STARS
SPECTROSCOPIC BINARIES

References(10)

Figures(0)

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L. Girardi
(
- Padua U. and
- INFN, Padua
)
,
G. Bertelli
(
- Padua U. and
- INFN, Padua and
- Trieste U., Astron. Dept. and
- IAS, Rome and
- Padua U., Astron. Dept. and
- Leuven U. and
- European Southern Observ. and
- Garching, Max Planck Inst.
)
,
A. Bressan
(
- Padua U. and
- INFN, Padua and
- Trieste U., Astron. Dept. and
- IAS, Rome and
- Padua U., Astron. Dept. and
- Leuven U. and
- European Southern Observ. and
- Garching, Max Planck Inst.
)
,
C. Chiosi
(
- Padua U. and
- INFN, Padua and
- Trieste U., Astron. Dept. and
- IAS, Rome and
- Padua U., Astron. Dept. and
- Leuven U. and
- European Southern Observ. and
- Garching, Max Planck Inst.
)
,
M.A.T. Groenewegen
(
- Padua U. and
- INFN, Padua and
- Trieste U., Astron. Dept. and
- IAS, Rome and
- Padua U., Astron. Dept. and
- Leuven U. and
- European Southern Observ. and
- Garching, Max Planck Inst.
)

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