J/MNRAS/447/492 Line lists (Galan+, 2015)
Chemical abundance analysis of symbiotic giants -
II. AE Ara, BX Mon, KX TrA, and CL Sco.
Galan C., Mikolajewska J., Hinkle K.H.
<Mon. Not. R. Astron. Soc., 447, 492-502 (2015)>
=2015MNRAS.447..492G 2015MNRAS.447..492G (SIMBAD/NED BibCode)
ADC_Keywords: Spectra, infrared ; Atomic physics
Keywords: stars: abundances - binaries: symbiotic -
stars: individual: AE Ara - stars: individual: BX Mon -
stars: individual: KX TrA - stars: individual: CL Sco
Abstract:
Knowledge of the elemental abundances of symbiotic giants is essential
to address the role of chemical composition in the evolution of symbiotic
binaries, to map their parent population, and to trace their mass transfer
history. However, there are few symbiotic giants for which the photospheric
abundances are fairly well determined. This is the second in a series
of papers on chemical composition of symbiotic giants determined from
high-resolution (R∼50000) near-IR spectra. Results are presented for the
late-type giant star in the AE Ara, BX Mon, KX TrA, and CL Sco systems.
Spectrum synthesis employing standard local thermal equilibrium (LTE)
analysis and stellar atmosphere models were used to obtain photospheric
abundances of CNO and elements around the iron peak (Sc, Ti, Fe, and Ni).
Our analysis resulted in sub-solar metallicities in BX Mon, KX TrA, and
CL Sco by [Fe/H]~-0.3 or -0.5 depending on the value of microturbulence.
AE Ara shows metallicity closer to solar by ∼0.2 dex. The enrichment
in 14N isotope found in all these objects indicates that the giants
have experienced the first dredge-up. In the case of BX Mon first
dredge-up is also confirmed by the low 12C/13C isotopic ratio of ∼8.
Description:
High-resolution (R=λ/Δλ∼50000), high-S/N ratio
(≳100), near-IR spectra were observed with the Phoenix cryogenic echelle
spectrometer on the 8 m Gemini South telescope in 2003-2006. All the
spectra cover narrow spectral intervals (∼100 Å) located in the H and
K photometric bands at mean wavelengths 1.563, 2.225, and 2.361 µm
(hereafter H-, K-, and Kr-band spectra, respectively). The spectra were
extracted and wavelength calibrated using standard reduction techniques
(Joyce 1992ASPC...23..258J 1992ASPC...23..258J ). The wavelength scales of all spectra were
heliocentric corrected.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tableb1.dat 109 43 List of atomic lines selected for calculations
together with gf-values and excitation potentials
tableb2.dat 109 213 List of molecular lines selected for calculations
together with gf-values and excitation potentials
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See also:
J/A+AS/146/407 : Symbiotic stars catalogue (Belczynski+, 2000)
J/AJ/153/35 : Infrared spectroscopy of symbiotic stars. XI. (Fekel+, 2017)
J/ApJS/240/21 : Symbiotic stars with 2MASS, WISE + Gaia data (Akras+, 2019)
Byte-by-byte Description of file: tableb1.dat tableb2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- ID Element species
12- 21 F10.4 0.1nm Wave [15590/23642.4] Wavelength in air (Å)
23 A1 --- n_Wave [a] Note on Wave (only in tableb1) (1)
25- 30 F6.4 eV EP [0.0048/6.41] Excitation potential
32- 38 F7.4 [-] loggf [-8.264/0.36] Log oscillator strength
40- 63 A24 --- Ref Reference
65- 83 A19 --- Bibcode Bibcode of reference
85-109 A25 --- Com Comment on reference
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Note (1): Note as follows:
a = Not used for the chemical composition determination.
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History:
From electronic version of the journal
References:
Mikolajewska et al. Paper I. 2014MNRAS.440.3016M 2014MNRAS.440.3016M
Galan et al. Paper III. 2016MNRAS.455.1282G 2016MNRAS.455.1282G
(End) Tiphaine Pouvreau [CDS] 15-Oct-2019