J/A+A/586/A120 Grid of 1D models for Mg line formation (Osorio+, 2016)
Mg line formation in late-type stellar atmospheres:
II. Calculations in a grid of 1D models.
Osorio Y., Barklem P.S.
<Astron. Astrophys. 586, A120 (2016)>
=2016A&A...586A.120O 2016A&A...586A.120O (SIMBAD/NED BibCode)
ADC_Keywords: Models, atmosphere ; Abundances ; Equivalent widths
Keywords: line: formation - stars: abundances
Abstract:
Mg is the alpha element of choice for Galactic population and chemical
evolution studies as it is easily detectable in all late-type stars.
Such studies require precise elemental abundances, and thus departures
from LTE need to be accounted for.
Description:
Table mgnlte.dat provides equivalent widths in LTE and non-LTE for 19
MgI spectral lines calculated in 3859 stellar atmospheres and using 21
Mg abundance per star. These data can be used to calculate abundance
corrections in a broad variety of stellar models and Mg enhancements
in a consistent way.
The tables in data/* provides departure coefficients of the LEVEL in
10563 stellar atmospheres at 56 depth points in the atmosphere and
using 21 Mg abundance values per star. These data can be used to
calculate abundance corrections in a broad variety of stellar models
and Mg enhancements in a consistent way.
The format of the departure coefficients is the unit-less value of the
ratio between the nlte and lte population of the level LEVEL of Mg.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
mgnlte.dat 430 225275 Mg LTE and non-LTE equivalent widths (w)
for 19 MgI lines
list.dat 75 126 List of individual files
data/* . 126 Individual files for departure coefficients
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See also:
VI/73 : Atomic Spectral Lines Data OII, Mg, Al, S, Sc (NIST 1993)
J/A+AS/117/127 : Solar MgI lines Stark broadening (Dimitrijevic+, 1996)
J/A+A/487/1203 : Electron-impact excitation of Be-like Mg (Del Zanna+, 2008)
J/MNRAS/414/1227 : Mg/Fe ratio of MILES stars (Milone+, 2011)
J/MNRAS/418/863 : NLTE corrections for Mg and Ca lines (Merle+ 2011)
J/A+A/554/A24 : Infra-red transitions of Ca and Mg (Civis+, 2013)
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Byte-by-byte Description of file (#): mgnlte.dat
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Bytes Format Units Label Explanations
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1- 4 I4 K Teff Effective temperature
11- 15 F5.2 [cm/s2] logg Surface gravity
21- 25 F5.2 [Sun] [Fe/H] Metallicity
31- 34 F4.2 km/s Vturb Microturbulent velocity
41- 44 F4.2 [Sun] A(Mg) Mg abundance (log[Mg/H]+12)
53- 60 F8.4 [-] 3829LTE log(wlte/lambda) for 3829Å (1)
63- 70 F8.4 [-] 3829NLTE log(w/lambda) for 3829Å (1)
73- 80 F8.4 [-] 3832LTE log(wlte/lambda) for 3832Å (1)
83- 90 F8.4 [-] 3832NLTE log(w/lambda) for 3832Å (1)
93-100 F8.4 [-] 3838LTE log(wlte/lambda) for 3838Å (1)
103-110 F8.4 [-] 3838NLTE log(w/lambda) for 3838Å (1)
113-120 F8.4 [-] 4167LTE log(wlte/lambda) for 4167Å (1)
123-130 F8.4 [-] 4167NLTE log(w/lambda) for 4167Å (1)
133-140 F8.4 [-] 4571LTE log(wlte/lambda) for 4571Å (1)
143-150 F8.4 [-] 4571NLTE log(w/lambda) for 4571Å (1)
153-160 F8.4 [-] 4703LTE log(wlte/lambda) for 4703Å (1)
163-170 F8.4 [-] 4703NLTE log(w/lambda) for 4703Å (1)
173-180 F8.4 [-] 5167LTE log(wlte/lambda) for 5167Å (1)
183-190 F8.4 [-] 5167NLTE log(w/lambda) for 5167Å (1)
193-200 F8.4 [-] 5172LTE log(wlte/lambda) for 5172Å (1)
203-210 F8.4 [-] 5172NLTE log(w/lambda) for 5172Å (1)
213-220 F8.4 [-] 5183LTE log(wlte/lambda) for 5183Å (1)
223-230 F8.4 [-] 5183NLTE log(w/lambda) for 5183Å (1)
233-240 F8.4 [-] 5528LTE log(wlte/lambda) for 5528Å (1)
243-250 F8.4 [-] 5528NLTE log(w/lambda) for 5528Å (1)
253-260 F8.4 [-] 5711LTE log(wlte/lambda) for 5711Å (1)
263-270 F8.4 [-] 5711NLTE log(w/lambda) for 5711Å (1)
273-280 F8.4 [-] 7691LTE log(wlte/lambda) for 7691Å (1)
283-290 F8.4 [-] 7691NLTE log(w/lambda) for 7691Å (1)
293-300 F8.4 [-] 8710LTE log(wlte/lambda) for 8710Å (1)
303-310 F8.4 [-] 8710NLTE log(w/lambda) for 8710Å (1)
313-320 F8.4 [-] 8712LTE log(wlte/lambda) for 8712Å (1)
323-330 F8.4 [-] 8712NLTE log(w/lambda) for 8712Å (1)
333-340 F8.4 [-] 8718LTE log(wlte/lambda) for 8718Å (1)
343-350 F8.4 [-] 8718NLTE log(w/lambda) for 8718Å (1)
353-360 F8.4 [-] 8736LTE log(wlte/lambda) for 8736Å (1)
363-370 F8.4 [-] 8736NLTE log(w/lambda) for 8736Å (1)
373-380 F8.4 [-] 8806LTE log(wlte/lambda) for 8806Å (1)
383-390 F8.4 [-] 8806NLTE log(w/lambda) for 8806Å (1)
393-400 F8.4 [-] 21059LTE log(wlte/lambda) for 21059Å (1)
403-410 F8.4 [-] 21059NLTE log(w/lambda) for 21059Å (1)
413-420 F8.4 [-] 21061LTE log(wlte/lambda) for 21061Å (1)
423-430 F8.4 [-] 21061NLTE log(w/lambda) for 21061Å (1)
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Note (1): w is the equivalent width calculated for the line with wavelength
lambda.
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- FileName Name of the file in data subdirectory
13- 75 A63 --- Title Title of the file
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Byte-by-byte Description of file (#): data/*
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Bytes Format Units Label Explanations
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1- 4 I4 K Teff Effective temperature
11- 15 E5.2 [cm/s2] logg Surface gravity
21- 25 E5.2 [Sun] [Fe/H] Metallicity
31- 34 F4.2 km/s Vturb Microturbulent velocity
41- 48 E8.4 --- tau500 Optical depth at 500nm
51- 62 A12 --- DC2.6 Departure coefficients at A(Mg)=2.6 (1)
63- 74 A12 --- DC3.0 Departure coefficients at A(Mg)=3.0 (1)
75- 86 A12 --- DC3.6 Departure coefficients at A(Mg)=3.6 (1)
87- 98 A12 --- DC4.0 Departure coefficients at A(Mg)=4.0 (1)
99-110 A12 --- DC4.6 Departure coefficients at A(Mg)=4.6 (1)
111-122 A12 --- DC5.0 Departure coefficients at A(Mg)=5.0 (1)
123-134 A12 --- DC5.3 Departure coefficients at A(Mg)=5.3 (1)
135-146 A12 --- DC5.6 Departure coefficients at A(Mg)=5.6 (1)
147-158 A12 --- DC6.0 Departure coefficients at A(Mg)=6.0 (1)
159-170 A12 --- DC6.3 Departure coefficients at A(Mg)=6.3 (1)
171-182 A12 --- DC6.6 Departure coefficients at A(Mg)=6.6 (1)
183-194 A12 --- DC6.8 Departure coefficients at A(Mg)=6.8 (1)
195-206 A12 --- DC7.0 Departure coefficients at A(Mg)=7.0 (1)
207-218 A12 --- DC7.1 Departure coefficients at A(Mg)=7.1 (1)
219-230 A12 --- DC7.3 Departure coefficients at A(Mg)=7.3 (1)
231-242 A12 --- DC7.5 Departure coefficients at A(Mg)=7.5 (1)
243-254 A12 --- DC7.6 Departure coefficients at A(Mg)=7.6 (1)
255-266 A12 --- DC7.8 Departure coefficients at A(Mg)=7.8 (1)
267-278 A12 --- DC8.0 Departure coefficients at A(Mg)=8.0 (1)
279-290 A12 --- DC8.1 Departure coefficients at A(Mg)=8.1 (1)
291-302 A12 --- DC8.3 Departure coefficients at A(Mg)=8.3 (1)
303-314 A12 --- DC8.5 Departure coefficients at A(Mg)=8.5 (1)
315-326 A12 --- DC8.6 Departure coefficients at A(Mg)=8.6 (1)
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Note (1): The format is F12.3, but it can have *** or NaN for no value,
and Inf for infinity.
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Acknowledgements:
Yeisson Osorio, yeisson.osorio(at)physics.uu.se
(End) Y. Osorio, P.S. Barklem [Uppsala Univ.], P. Vannier [CDS] 17-Dec-2015