J/A+A/375/591 SUMER Spectral Atlas of Solar Disk Features (Curdt+, 2001)
The SUMER Spectral Atlas of Solar Disk Features.
Curdt W., Brekke P., Feldman U., Wilhelm K., Dwivedi B.N., Schuhle U.,
Lemaire P.
<Astron. Astrophys. 375, 591 (2001)>
=2001A&A...375..591C 2001A&A...375..591C
ADC_Keywords: Sun ; Spectra, ultraviolet
Mission_Name: SOHO
Keywords: Sun: UV radiation - Sun: chromosphere - Sun: transition region -
Sun: corona - line: identification - atlases
Description:
List of spectral lines in the wavelength range from 668Å to
1611Å identified in SUMER (Solar Ultraviolet Measurements of
Emitted Radiation, spectrograph on the spacecraft SOHO) spectra of the
average quiet Sun (QS), a coronal hole (CH) and a sunspot on disk
(SS). Spectral lines observed in second order of diffraction which are
also given here, extend the lower wavelength limit to below 500Å.
For each entry we give the observed wavelengths in angstrom, the
identification, the transition, the peak of spectral radiance,
Lpeak, in mW/(sr*m2*Å) (incl. background), and a
cross-reference to other line lists available in the literature (cf.,
Sect. 5.1). For second-order lines radiance entries are generally not
provided, since the background separation in both orders of
diffraction is a non-trivial task, which can not be automated. Only a
few radiance values of strong second-order lines with negligible
first-order contribution are given, which are marked by an asterisk
(*).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 114 1393 Line list
tablea1.tex 140 1463 LaTeX version of tablea1
tablea1.pdf 1 139068 pdf version of tablea1
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See also:
J/A+AS/126/281 : Solar disk spectrum (660-1175Å) (Curdt+ 1997)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- n_Lambda flag for blended lines (1)
4- 10 F7.2 0.1nm Lambda Observed wavelength
12- 23 A12 --- Line Ion or atom or temperature code (2)
25- 52 A28 --- Transu Transition, upper level
53 A1 --- --- [-] dash
55- 82 A28 --- Transl Transition, lower level
83 A1 --- f_L(QS) [*] *: Strong second-order line (3)
84- 90 F7.1 10mW/m2/sr/nm L(QS) ? Average quiet Sun peak of spectral
radiance
92 A1 --- f_L(CH) [*] *: Strong second-order line (3)
93- 99 F7.1 10mW/m2/sr/nm L(CH) ? Coronal hole peak of spectral radiance
101 A1 --- f_L(SS) [*] *: Strong second-order line (3)
102-110 F9.1 10mW/m2/sr/nm L(SS) ? Sunspot on disk peak of spectral radiance
112 I1 --- Ref [0,4] Reference (4)
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Note (1): For blended lines, the same symbol (ex. dd) is before the lines.
Note (2): Ion or atom are specified within [square brackets]; temperature
code (within parentheses) are from Feldman et al. (1997ApJS..113..195F 1997ApJS..113..195F):
a: below 3x105K
b: approx. 3x105K
c: approx. 4x105K
d: 6x105K to 9x105K
e: approx. 1.4x106K
f: approx. 1.8x106K
In the case of line blends, the contributions are connected
by the n_Lambda value
Note (3): For second-order lines radiance entries are generally not provided,
since the background separation in both orders of diffraction is a
non-trivial task, which can not be automated.
Only a few radiance values of strong second-order lines with
negligible first-order contribution are given, which are marked by
an asterisk (*).
Note (4): References:
(0) Curdt et al. (1997, Cat. J/A+AS/126/281)
(1) Feldman et al. (1997ApJS..113..195F 1997ApJS..113..195F)
(3) new line or new identification
(4) Kelly (1987, J. Phys. Chem. Ref. Data 16, 1) or
Cohen (1978ApJS...37..393C 1978ApJS...37..393C) or Sandlin (1986ApJS...61..801S 1986ApJS...61..801S).
This line list complements Fig.4 of the SUMER Spectral Atlas.
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Acknowledgements: Dr Werner Curdt
References:
Curdt et al., 2004A&A...427.1045C 2004A&A...427.1045C
(End) Patricia Bauer [CDS] 11-May-2001