Free Access
Issue
A&A
Volume 576, April 2015
Article Number A128
Number of page(s) 15
Section Stellar atmospheres
DOI https://doi.org/10.1051/0004-6361/201424885
Published online 17 April 2015

Online material

Appendix A: List of infrared OH lines for oxygen abundance determination

In this work we used a number of vibrational-rotational lines (X-2Π) from the first-overtone sequence (Δv = 2) located in

the spectral range between 15141548 and 15951632 nm. The atomic parameters of the IR OH lines and their equivalent widths measured in the target EMP giants and also the derived oxygen abundances are provided in Table A.1.

Table A.1

OH spectral lines used in the abundance analysis.

Appendix B: 3D–1D abundance corrections for IR OH lines and the forbidden oxygen line

In Tables B.1B.4 we provide 3D–1D abundance corrections that were computed for all OH lines and forbidden oxygen line, in each EMP giant studied here.

Table B.1

Abundance corrections for HD 122563.

Table B.2

Same as in Table B.1 but for HD 186478.

Table B.3

Same as in Table B.1 but for BD–18:5550.

Table B.4

Same as in Table B.1 but for CS 31082-001.

thumbnail Fig. B.1

Excerpts from CRIRES spectra centred on IR OH lines in HD 122563 (black dots). Gaussian best-fits to the observed IR OH line profiles are shown as red lines. Blue solid lines show the synthetic telluric spectrum computed with the TAPAS online service (Bertaux et al. 2014) which is shifted downwards by 0.01 for better readability. Rest frame wavelengths (λ0) and measured equivalent width values (EW) of the IR OH lines are provided at the bottom of each panel.

Open with DEXTER

thumbnail Fig. B.2

The same as in Fig. B.1 but for HD 186478.

Open with DEXTER

thumbnail Fig. B.3

The same as in Fig. B.1 but for BD –18:5550.

Open with DEXTER

thumbnail Fig. B.4

The same as in Fig. B.1 but for CS 31082-001.

Open with DEXTER


© ESO, 2015

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