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J/A+A/304/347 40 field red supergiants in the SMC (Meliani+, 1995)
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Metallicities and carbon abundances of 40 field red supergiants in the Small
Magellanic Cloud
Meliani M.T., Barbuy B., Richtler T.
<Astron. Astrophys. 304, 347 (1995)>
=1995A&A...304..347M (SIMBAD/NED BibCode)
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ADC_Keywords: Spectrophotometry
Keywords: Magellanic Clouds - stars: abundances - galaxies: abundances
Description:
Low-resolution spectra (~5A) for 40 red supergiants in the Small
Magellanic Cloud were compared with synthetic spectra, and their
metallicities were derived. A mean metallicity of [Fe/He]=-0.71 is
found for 38 stars cooler than T_eff_<4500K.
Using the stellar parameters derived, the carbon abundances were
determined by comparing synthetic spectra at the G-band region to the
observed spectra. A mean {epsilon}(C)=7.85 is found, clearly higher
than the low values suggested in the literature for the H II regions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
p5.dat 20 1153 Relative spectrum of PMMR 5 (1)
p10.dat 20 1153 Relative spectrum of PMMR 10 (1)
p12.dat 20 1153 Relative spectrum of PMMR 12 (1)
p27.dat 20 1153 Relative spectrum of PMMR 27 (1)
p28.dat 20 1153 Relative spectrum of PMMR 28 (1)
p43.dat 20 1153 Relative spectrum of PMMR 43 (1)
p47.dat 20 1153 Relative spectrum of PMMR 47 (1)
p48.dat 20 1153 Relative spectrum of PMMR 48 (1)
p56.dat 20 1153 Relative spectrum of PMMR 56 (1)
p62.dat 20 1153 Relative spectrum of PMMR 62 (1)
p89.dat 20 1153 Relative spectrum of PMMR 89 (1)
p102.dat 20 1153 Relative spectrum of PMMR 102 (1)
p106.dat 20 1153 Relative spectrum of PMMR 106 (1)
p118.dat 20 1153 Relative spectrum of PMMR 118 (1)
p119.dat 20 1153 Relative spectrum of PMMR 119 (1)
p122.dat 20 1152 Relative spectrum of PMMR 122 (1)
p123.dat 20 1153 Relative spectrum of PMMR 123 (1)
p126.dat 20 1153 Relative spectrum of PMMR 126 (1)
p131.dat 20 1153 Relative spectrum of PMMR 131 (1)
p134.dat 20 1153 Relative spectrum of PMMR 134 (1)
h13.dat 20 1153 Relative spectrum of [S78d] 13 (1)
h15.dat 20 1152 Relative spectrum of [S78d] 15 (1)
h21.dat 20 1153 Relative spectrum of [S78d] 21 (1)
h30.dat 20 1152 Relative spectrum of [S78d] 30 (1)
h36.dat 20 1152 Relative spectrum of [S78d] 36 (1)
h37.dat 20 1152 Relative spectrum of [S78d] 37 (1)
h39.dat 20 1153 Relative spectrum of [S78d] 39 (1)
h44.dat 20 1153 Relative spectrum of [S78d] 44 (1)
h47.dat 20 1153 Relative spectrum of [S78d] 47 (1)
h51.dat 20 1153 Relative spectrum of [S78d] 51 (1)
h52.dat 20 1153 Relative spectrum of [S78d] 52 (1)
h58.dat 20 1153 Relative spectrum of [S78d] 58 (1)
h67.dat 20 1153 Relative spectrum of [S78d] 67 (1)
h71.dat 20 1153 Relative spectrum of [S78d] 71 (1)
h78.dat 20 1153 Relative spectrum of [S78d] 78 (1)
h90.dat 20 1153 Relative spectrum of [S78d] 90 (1)
h91.dat 20 1153 Relative spectrum of [S78d] 91 (1)
h92.dat 20 1153 Relative spectrum of [S78d] 92 (1)
h96.dat 20 1153 Relative spectrum of [S78d] 96 (1)
h100.dat 20 1153 Relative spectrum of [S78d] 100 (1)
stars 75 40 List of programme stars
fig1a.ps 132 763 Observed spectra for P106, P56, P10,
H100, H44, P62, P102, P43, H37, P28 (1)
fig1b.ps 132 757 Observed spectra for P48, P134, P123,
H91, P89, H71, H67, H21, P47, P12 (1)
fig1c.ps 132 763 Observed spectra for H58, H47, P131,
P119, H92, P118, P122, H39, H36, H96 (1)
fig1d.ps 132 762 Observed spectra for H30, H78, H51,
P27, H15, H52, H90, P5, H13, P126 (1)
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Note (1):
[S78d] (noted also H) refers to Sanduleak 1978, partially
published by Humphreys (1979ApJ...231..384H)
PMMR (noted also P) refers to Prevot, Martin, Maurice, Rebeirot,
Rousseau (1983A&AS...53..255P)
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Byte-by-byte Description of file: stars
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Name of the star (1)
12- 18 A7 --- Variable Variable name
21- 22 I2 h RAh Right Ascension 1975 (hours)
24- 25 I2 min RAm Right Ascension 1975 (minutes)
27- 30 F4.1 s RAs Right Ascension 1975 (seconds) (2)
34 A1 --- DE- Declination 1975 (sign)
35- 36 I2 deg DEd Declination 1975 (degrees)
38- 39 I2 arcmin DEm Declination 1975 (minutes)
41- 42 I2 arcsec DEs [0/60[? Declination 1975 (seconds) (2)
47- 50 A4 --- SpType Spectral type
56- 60 F5.2 mag Bmag []? B magnitude (from SIMBAD)
62- 66 F5.2 mag Vmag V magnitude (from SIMBAD)
68- 75 A8 --- File Name of file containing the spectrum
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Note (1): the following acronyms are used:
[S78d] refers to Sanduleak 1978, partially published by
Humphreys (1979ApJ...231..384H)
PMMR refers to Prevot, Martin, Maurice, Rebeirot, Rousseau
(1983A&AS...53..255P)
Note (2): non-accurate positions (0.1min accuracy in RA, 1arcmin in DE)
have blank DEs (arcsec declination) values.
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Byte-by-byte Description of file: *.dat
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Bytes Format Units Label Explanations
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3- 10 F8.3 0.1nm Lam [4249/5401] Wavelength (Angstroems)
15- 20 F6.4 --- I Relative spectrum at wavelength Lam
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Historical Notes:
* PostScript figures were received at CDS in July 1995, and
ascii tables in January 1996. The file "stars.dat" was added
at CDS in January 1996.
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(End) Simona Mei, Francois Ochsenbein [CDS] 24-Jan-1996