J/ApJS/96/39 J/ApJS/96/39 The Catalog of Southern Ringed Galaxies. R Buta Astrophys. J. Suppl. 96 39 1995 1995ApJS...96...39B Galaxies, ring Galaxy catalogs The Catalog of Southern Ringed Galaxies (CSRG) is a comprehensive compilation of diameters, axis ratios, relative bar position angles, and morphologies of inner and outer rings, pseudorings, and lenses in 3,692 galaxies south of declination -17 degrees. The catalog is based on visual inspection of most of the 606 fields of the SRC-J southern sky survey, with the ESO-B, ESO-R, and Palomar Sky surveys used as auxiliaries when needed for overexposed core regions. The catalog is most complete for SRC fields 1--303 (mostly south of declination -42 degrees). There are two auxiliary tables: Table 4 includes the notes for 371 entries in the main catalog, and Table 6 includes classifications for 859 additional galaxies not part of the main catalog. Detailed analysis of 5403 duplicate estimates of ring diameters and 1606 duplicate estimates of bar/ring position angles indicates that the CSRG has very good internal precision and homogeneity in these parameters. For an ``average'' ring or lens of angular diameter 0.'6 and apparent axis ratio 0.8, the internal errors are 0.'026 in angular diameter and 6.3 degrees in bar/ring position angle. Based on a comparison with two other major sources of ring diameter measurements, the external mean error in CSRG diameters is ~3.2 times the internal error at a given diameter. Comparison of the type classifications with other catalogues indicates good agreement on interpretations of features, including family and variety.

RAh Right Ascension 1950 (hours) h RAm Right Ascension 1950 (minutes) min RAs Right Ascension 1950 (seconds) s DE- Declination 1950 (sign) --- DEd Declination 1950 (degrees) deg DEm Declination 1950 (minutes) arcmin Name Object Name --- O Outer feature classification R1, R1', R2', and R1R2' are OLR subclasses (Buta and Crocker 1991, AJ, 102, 1715) For 78 galaxies classified as having R1R2' features, data for the R2' part is continued after column 16 in the exact same format; the data for the R1 part are in bytes 46-64; the R1R2' classification is split across the record L refers to outer lens RL- refers to RL with R underlined; RL+ refers to RL with L underlined RG refers to ring galaxy PR refers to polar ring --- Family Family classification SX- means SAB with A underlined; SX means SAB with no underlines; and SX+ means SAB with B underlined --- I Inner feature classification rs- means rs with r underlined and rs+ means rs with s underlined l refers to inner lens rl- means rl with r underlined and rl+ means rl with l underlined rpl means pseudoring-lens --- T Numerical stage index Numerical stage index on scale of Third Reference Catalogue of Bright Galaxies (de Vaucouleurs et al. 1991, Springer: New York) --- u_T Uncertainty on T index --- D(O) Outer feature major axis diameter arcmin u_D(O) Uncertainty on D(O) --- d(O) Outer feature minor axis diameter arcmin u_d(O) Uncertainty on d(O) --- Thet(O) Relative bar/outer feature major axis position angle deg u_Thet(O) Uncertainty on Thet(O) --- Peculiar Peculiar or disturbed-looking --- D(I) Inner feature major axis diameter arcmin u_D(I) Uncertainly on D(I) --- d(I) Inner feature minor axis diameter arcmin u_d(I) Uncertainty on d(I) --- Thet(I) Relative bar/inner feature major axis position angle deg u_Thet(I) Uncertainty on Thet(I) --- Mult Multiplicity of spiral pattern Number of spiral arms n+ means n or more arms f means flocculent (see Elmegreen and Elmegreen, 1982, MNRAS, 201, 1021) m = multiple (general) 2i,4o means two inner arms, four outer arms, etc. --- N Number of measurements per item --- blank Blank (columns past here for R2 arcmin component of R1R2 arcmin cases ONLY) --- RAh2 Right Ascension 1950 (hours) h RAm2 Right Ascension 1950 (minutes) min RAs2 Right Ascension 1950 (seconds) s DE-2 Declination 1950 (sign) --- DEd2 Declination 1950 (degrees) deg DEm2 Declination 1950 (minutes) arcmin Name2 Object Name --- O2 Outer feature classification --- F2 Family classification --- I2 Inner feature classification --- T2 Numerical stage index (RC3 scale) --- u_T2 Uncertainty on T index --- D(O)2 Outer feature major axis diameter arcmin u_D(O)2 Uncertainty on D(O)2 --- d(O)2 Outer feature minor axis diameter arcmin u_d(O)2 Uncertainty on d(O)2 --- The(O)2 Relative bar/outer feature major axis position angle deg u_The(O)2 Uncertainty on The(O)2 --- o_O No. of outer feature classifications --- o_Family No. of family classifications --- o_I No. of inner feature (variety) classifications --- o_T No. of stage classifications --- o_D(O) No. of outer feature major-axis diameter estimates --- o_d(O) No. of outer feature minor-axis diameter estimates --- o_Thet(O) No. of estimates of rel. bar, outer feature major-axis position angle --- o_D(I) No. of inner feature major-axis diameter estimates --- o_d(I) No. of inner feature minor-axis diameter estimates --- o_Thet(I) No. of estimates of rel. bar, inner feature major-axis position angle --- RAh Right Ascension 1950 (hours) h RAm Right Ascension 1950 (minutes) min DE- Declination 1950 (sign) --- DEd Declination 1950 (degrees) deg DEm Declination 1950 (minutes) arcmin Name Object Name --- Field SRC-J, ESO-B, or ESO-R field number --- Notes Description of object --- RAh Right Ascension 1950 (hours) h RAm Right Ascension 1950 (minutes) min RAs Right Ascension 1950 (seconds) s DE- Declination 1950 (sign) --- DEd Declination 1950 (degrees) deg DEm Declination 1950 (minutes) arcmin Name Object Name --- Special Special feature L refers to outer lens PR refers to polar ring Xg refers to X-shaped galaxy --- Family Family or class SX- means SAB with A underlined; SX means SAB with no underlines; and SX+ means SAB with B underlined E refers to elliptical I refers to irregular --- Variety Variety rs+ means rs with s underlined l refers to inner lens --- Stage Revised Hubble stage --- Peculiar Symbol for peculiarities --- T Numerical stage index Numerical stage index on scale of Third Reference Catalogue of Bright Galaxies (de Vaucouleurs et al. 1991, Springer: New York) --- u_T Uncertainty symbol for T --- Mult Multiplicity of outer spiral pattern Number of spiral arms n+ means n or more arms f means flocculent (see Elmegreen and Elmegreen, 1982, MNRAS< 201, 1021) m = multiple (general) 2i,4o means two inner arms, four outer arms --- Nancy G. Roman SSDOO/ADC 1995Aug11The data and this document were submitted by Ronald J. Buta on July 3, 1995. We thank him for this cooperation and also for his help in correcting a few problems. The catalog was reformatted to eliminate unnecessary blank spaces and the document modified somewhat by the undersigned. J_ApJS_96_39.xml