J/A+A/400/1043 Spectroscopic atlas of Deneb 3826-5212Å (Albayrak+, 2003)
A Spectroscopic atlas of Deneb (A2 Iae) λλ 3826-5212.
Albayrak B., Gulliver A.F., Adelman S.J., Aydin C., Kocer D.
<Astron. Astrophys. 400, 1043 (2003)>
=2003A&A...400.1043A 2003A&A...400.1043A
ADC_Keywords: Stars, early-type ; Stars, supergiant ; Spectroscopy
Keywords: atlases - stars: early-type - stars: individual: Deneb -
stars: supergiants
Abstract:
We present a spectroscopic atlas of Deneb (A2 Iae) obtained with the
long camera of the 1.22-m telescope of the Dominion Astrophysical
Observatory using Reticon and CCD detectors.
For λλ3826-5212 the inverse dispersion is 2.4Å/mm
with a resolution 0.072Å. At the continuum the mean signal-to-noise
ratio is 1030. The wavelengths in the laboratory frame, the equivalent
widths, and the identifications of the various spectral features are
given. This atlas should provide useful guidance for studies of other
stars with similar spectral types. The stellar and synthetic spectra
with their corresponding line identifications can be examined at
http://www.brandonu.ca/physics/gulliver/atlases.html .
Description:
The table 2 presents the full line identifications of Deneb for the
range 3826-5212Å. The far left column contains the letters L and R
are a guide to the range of lines whose wings are at least somewhat
blended together. The columns are the measured stellar wavelength in
Å, the equivalent width (EW) in mÅ, the line depth as a fraction
of the continuum height, the line width (FWHM) in Å, the laboratory
wavelength in Å, which is the stellar wavelength as corrected for
the stellar radial velocity of each spectrum, and the identified
atomic lines which cause the observed feature. The stellar and the
laboratory wavelengths should be close, but blending and errors can
produce discrepancies. Possible identifications are given in
parentheses and brackets indicate that an identified line may be
contributing to two measured stellar feature.
Objects:
-----------------------------------------
RA (2000) DE Designation(s)
-----------------------------------------
20 41 25.9 +45 16 49 Deneb = HR 7924
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 47 51 Deneb spectrograms
table2.dat 142 1294 Line measurements of Deneb
region.dat 61 25 Region designations
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See also:
J/A+A/364/237 : Elemental abundances of Deneb (Albayrak+, 2000)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Exp Exposure number
15- 27 F13.5 d HJD ? Heliocentric Julian Date
29- 32 I4 0.1nm lambda Wavelength
34- 37 F4.1 km/s RV ? Radial velocity
39- 41 F3.1 km/s e_RV ? rms uncertainty on RV
43- 46 I4 --- S/N Signal-to-noise ratio
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 0.1nm Region Region, see region.dat file
7 A1 --- Blend [LR] L and R indicators of the lines whose
wings are blended together
9- 16 F8.3 0.1nm Lambda ? Stellar wavelength
18- 23 F6.1 0.1pm EW ? Equivalent width in milliÅ
26- 30 F5.3 --- Depth ? The line depth as a fraction of the
continuum height
33- 36 F4.2 0.1nm FWHM ? Full width at half maximum
39- 46 F8.3 0.1nm LambdaLab ? Laboratory wavelength which is the stellar
wavelength corrected for the stellar radial
velocity of each section
47 A1 --- Link [a-o] Flag for common line identification (1)
49-142 A94 ---- Ident Line identifications, separated by comma (2)
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Note (1): When the line identification is associated to 2 LambdaLab,
a letter links the two lines, i.e.
3860 L 3852.291 2.9 0.005 0.58 3852.343a Fe I(73)3852.5727(6)
3860 3852.650 4.3 0.011 0.43 3852.702a Fe I(73)3852.5727(6)
Note (2): Line identification, in the form
Ion(Multiplet Number) wavelength in Angstroms(laboratory intensity)
i.e., in the Fe I(45)3841.0480(80r),
Fe I is atomic species, (45) is multiplet number,
3841.0480 is the laboratory wavelength, (80r) is intensity.
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Byte-by-byte Description of file: region.dat
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Bytes Format Units Label Explanations
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1- 4 I4 0.1nm Region Region code (wavelength)
6- 18 A13 --- Exp1 First exposure number, see table1.dat
21- 33 A13 --- Exp2 Second exposure number, see table1.dat
36- 48 A13 --- Exp3 Third exposure number, see table1.dat
51- 63 A13 --- Exp4 Fourth exposure number, see table1.dat
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Acknowledgements: Saul Adelman
(End) Patricia Bauer [CDS] 09-Jan-2003