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J/A+AS/108/561 P Cygni spectrum in 1985 (Markova, 1994)
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How did the spectrum of P Cygni look in 1985? Spectral atlas with complete line
identifications in the wavelength range from 3550 to 4800A
Markova N.
<Astron. Astrophys. Suppl. Ser. 108, 561 (1994)>
=1994A&AS..108..561M (SIMBAD/NED Reference)
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ADC_Keywords: Stars, emission; Spectra, ultraviolet
Keywords: stars: P Cygni - line identification - stars: mass loss - atlases
Abstract:
Using the coude spectrograph of the NAO 2m RCC telescope at the Rodopa
mountains, Bulgaria, nine spectra in the wavelength range from 3550 to 4800A
of P Cygni were obtained during the year of 1985. By averaging these
spectra we achieved a S/N -ratio of about 45. Here we present a spectral
atlas with complete line identifications. Apart from the lines listed by de
Groot (1969) many new lines of OII, NII and FeIII ions are identified. Few
lines of NIII and SIII mainly from higher excitation levels are also
observed. The most intensive lines of OIII and CIII are seen in absorption.
In addition to the forbidden lines discovered by Stahl et al. (1991, 1993)
a number of further forbidden lines are identified. A special feature of
our spectrum is the appearance of AlIII lines in emission.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1 69 707 P Cygni spectrum - wavelengths and
identifications
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Byte-by-byte Description of file: table1
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Bytes Format Units Label Explanations
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2- 8 F7.2 0.1nm LamObs Observational wavelengths
10 A1 --- u_LamObs [? ] '?' indicates an uncertain feature
13 A1 --- a/e [ae ] Nature of the line:
a = absorption, e = emission
14 A1 --- n_LamObs [ )] When two or more spectral features are
believed to be formed by the same line or
lines, the different features are connected
by round brackets.
17- 21 F5.2 0.1nm LamLab []? Laboratory wavelengths
25- 36 A12 --- Ion Ion identification
37 A1 --- n_Ion [* ] '*' marks the most important contributor
to a blend
41- 43 A3 --- Rem1 Remarks (1)
47- 48 A2 --- Rem2 Additional remarks (2)
52- 53 A2 --- Overlap "--" marks the area of overlapping of
forbidden and permitted line
55- 69 A15 --- Forbidden Identification of forbidden lines
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Note (1): new = newly identified line
1 = line observed by de Groot (1969)
2 = line observed by Stahl et al. (1993)
Note (2): IS = interstellar line
bl = blend
1 = first absorption component
2 = second absorption component
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References: De Groot, M., 1969, Bull. Astron. Inst. Net., 20, 225
Stahl, O., Mandel, H., Wolf, B., 1993, A&AS, 99, 167
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(End) Patricia Bauer [CDS] 26-Jul-1994