ACDS V10.0 - Fri May 03 02:38:14 CEST 2019
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Detailed Description of III/147 :
Studies of LMC stellar content (Rousseau+ 1978)
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Note : this is the description file of the original catalog.
This HTML page corresponds well to the original description, but some minor
changes in the format may have been introduced in the FITS output
files in order to allow for arithmetic operations on quantities
such as coordinates and times. h:m:s and d:m:s units are normally
converted into degrees, and YYYY-MM-DD into julian days.
Similarly, some slight changes may have been introduced in the
units; the value given in the HTML files supersedes the value indicated in the ReadMe
file for this catalogue.
III/147 Studies of LMC stellar content (Rousseau+ 1978)
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Studies of the Large Magellanic Cloud stellar content. III.
Spectral types and V magnitudes of 1822 members
Rousseau J., Martin N., Prevot L., Rebeirot E., Robin A., Brunet J.P.
<Astron. Astrophys. Suppl. Ser. 31, 243 (1978)>
=1978A&AS...31..243R
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ADC_Keywords: Magellanic Clouds ; MK spectral classification ; Photometry, UBV
Description:
This is an updated version of the original catalogue. New UBV
photoelectric measurements were added from Isserstedt (1979, 1982),
and Feitzinger and Isserstedt (1983). The remarks and origins of
photoelectric photoelectric magnitudes are not included in this
electronic version.
Photoelectric data are obtained by averaging observational values made
at 100 and more cm instruments (with weight=2) with ones made at 60
and less cm instruments (with weight=1).
Abstract:
A spectral survey has been made during the period 1971 to 1975 with
the ESO 40cm astrograph at La Silla, equipped with its normal prism,
giving an intermediate dispersion of 95Angstroem/mm at 4026Angstroem.
Long exposure plates taken directly or with an interference filter
enabled us to obtain spectral types for nearly 1600 stars. In
parallel, a V photographic survey has been carried out during the same
period with the same astrograph and has led to the determination of V
magnitudes for more that 700 stars having no previous photometric data.
New spectroscopic and photometric results as well as previous
photoelectric UBV values are given in the catalogue together with
additional remarks concerning peculiarities of spectra, V magnitudes,
and details on double and multiple systems.
File Summary:
FileName Lrecl Records Explanations
× 80 . This file
× ReadMe 80 . This file
× catalog.dat 78 1827 The catalogue
Byte-by-byte Description of file: catalog.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Name Star identification (1)
13- 15 A3 --- Bchart Number of B chart Hodge and Wright (1967) (2)
16- 17 I2 h RAh Right Ascension 1975 (hours)
19- 22 F4.1 min RAm Right Ascension 1975 (minutes)
25 A1 --- DE- Declination 1975 (sign)
26- 27 I2 deg DEd Declination 1975 (degrees)
29- 30 I2 arcmin DEm [0/60] Declination 1975 (minutes)
32- 38 A7 --- SpType Spectral type (3)
39- 43 A5 --- r_SpType Origin of the spectral type (4)
45- 49 F5.2 mag Vmag ? V photoelectric magnitude
50 A1 --- u_Vmag Uncertainty flag (:) on Vmag
52- 56 F5.2 mag B-V ? photoelectric colour index
57 A1 --- u_B-V Uncertainty flag (:) on B-V
59- 63 F5.2 mag U-B ? photoelectric colour index
64 A1 --- u_U-B Uncertainty flag (:) on U-B
66- 67 I2 --- Obs [1/16]? Number of photoelectric measurements
71- 75 F5.2 mag Pmag ? V photographic magnitude (5)
76 A1 --- u_Pmag Uncertainty flag (:) on Pmag (5)
77- 78 I2 --- o_Pmag [1/6]? Number of plates used for Pmag
Note (1): number of the star in the following catalogues and lists:
BI = Brunet et al. (1975A&AS...21..109B)
C = Ardeberg et al. (1972A&AS....6..249A), <ARDB NNN> in Simbad;
Brunet et al. (1973A&AS....9..447B)
D = Dachs (1972A&A....18..271D), <Dachs LMC N-NN> in Simbad
FDA = Fehrenbach et al. (1976A&AS...24..379F), <FD NN> in Simbad.
FDS = Fehrenbach and Duflot (1970), A&A Special Suppl. no. 1, list S,
<[FD70] SNNN> in Simbad;
G = Fehrenbach and Duflot (1970), A&A Special Suppl. no. 1, list G,
<GV NNN> in Simbad;
Fehrenbach and Duflot (1973A&AS...10..231F), <GV NNNN> in Simbad.
HS = Henize (1956ApJS....2..315H), <LHA 115-S NNN> in Simbad.
NS = Sanduleak (1969), Contr. Cerro Tololo Int. Am. Obs. 89 (Cat. III/113),
<Sk -DD NNNA> in Simbad.
OM = Martin and Rebeirot (1972A&A....21..329M), <[MR72] NN> in Simbad
R = Feast et al. (1960MNRAS.121..337F), <RMC NNN> in Simbad.
Note (2): Hodge, P.W. and Wright, F.W.: 1967, The Large Magellanic Cloud,
Smithsonian Publication 4699, Smithsonian Press, Washington.
Note (3): spectral MK classification, with the terminology used by
Feast et al., Ardeberg et al., and Brunet et al.; 22 non stellar
objects have been classified with the usual terminology:
CLUS = for clusters
HII = HII regions
PN = planetary nebulae
Note (4): origin of the adopted spectral type:
A = Ardeberg et al. (1972A&AS....6..249A)
Brunet et al. (1973A&AS....9..447B)
C = Classifications determined from spectra obtained at the
Chalonge-Divan spectrograph and published by
Brunet et al. (1975A&AS...21..109B)
F = Fehrenbach et al. (1976A&AS...24..379F) for the WR stars
P = New spectral types determined from objective prism spectra,
with or without interference filter.
R = Feast et al. (1960MNRAS.121..337F)
S = Sanduleak (1970CoTol..89....1S), Contr. Cerro Tololo Int. Am. Obs. 89;
Sanduleak (1972A&A....17..326S)
Note (5): V photographic magnitude as determined from astrographic plates.
A value with two decimals means a standard error less than 0.07 mag; a
value with one decimal only means a standard error less than 0.15 mag;
a value with one decimal and a colon means a standard error higher
than 0.15 mag or one determination of low quality.
References:
Feitzinger, J.V., Isserstedt, J.: 1983, A&AS 51, 505
Isserstedt, J.: 1979, A&AS 38, 239
Isserstedt, J.: 1982, A&AS 50, 7
Historical Notes:
* 29-May-1989: this version which supersedes III/111 was provided by
L. Prevot (Marseille Observatory). Compared to the original edition,
UBV photoelectric data and number of measurements were recomputed.
* 01-Sep-1995 (CDS): a few misaligned decimal points and uncertainty
colons corrected in the catalog file. Documentation was standardized.
* 04-Apr-2016: added bibcodes in this "ReadMe" file;
the postiion and a Simbad name are added in the file "catalog.pos"================================================================================
(End) Francois Ochsenbein [CDS] 01-Sep-1995
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(End) Francois Ochsenbein [CDS] 01-Sep-1995