III/147 Studies of LMC stellar content (Rousseau+ 1978)
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
ADC_Keywords: Magellanic Clouds 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
ReadMe 80 . This file catalog 78 1827 The catalogue
Byte-by-byte Description of file: catalog
Bytes Format Units Label Explanations
1- 7 A7 --- Name Identification (1) 8- 15 A8 --- 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 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 ? 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 ? Number of plates used for Pmag determination
Note (1): number of the star in the following catalogues and lists: BI: Brunet et al. (1975), A&AS 21, 109 C: Ardeberg et al. (1972), A&AS 6, 249 Brunet et al. (1973), A&AS 9, 447 D: Dachs (1972), A&A 18, 271 FDA: Fehrenbach et al. (1976), A&AS 24, 379 FDS: Fehrenbach and Duflot (1970), A&A Special Suppl. no. 1, list S G: Fehrenbach and Duflot (1970), A&A Special Suppl. no. 1, list G Fehrenbach and Duflot (1973), A&AS 10, 231, list G HS: Henize (1956), ApJS 2, 315 NS: Sanduleak (1969), Contr. Cerro Tololo Int. Am. Obs. 89 OM: Martin and Rebeirot (1972), A&A 21, 329 R: Feast et al. (1960), MNRAS 121, 337 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: for HII regions PN: for planetary nebulae Note (4): origin of the adopted spectral type: A: Ardeberg et al. (1972), A&AS 6, 249; Brunet et al. (1973), A&AS 9, 447 C: Classifications determined from spectra obtained at the Chalonge-Divan spectrograph and published by Brunet et al. (1975), A&AS 21, 109 F: Fehrenbach et al. (1976) for the WR stars, A&AS 24, 379 P: New spectral types determined from objective prism spectra, with or without interference filter. R: Feast et al. (1960), MNRAS 121, 337 S: Sanduleak (1969), Contr. Cerro Tololo Int. Am. Obs. 89; Sanduleak (1972), A&A 17, 326 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.
(End) Francois Ochsenbein [CDS] 01-Sep-1995
|The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line|