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VII/237             HYPERLEDA. I. Catalog of galaxies        (Paturel+, 2003)

HYPERLEDA. I. Identification and designation of galaxies. Paturel G., Petit C., Prugniel P., Theureau G., Rousseau J., Brouty M., Dubois P., Cambresy L. <Astron. Astrophys. 412, 45 (2003)> =2003A&A...412...45P
ADC_Keywords: Galaxy catalogs Keywords: galaxies: general - catalogs Abstract: We present the new catalog of principal galaxies (PGC2003). It constitutes the framework of the HYPERLEDA database that supersedes the LEDA one, with more data and more capabilities. The catalog is still restricted to confirmed galaxies, i.e. about one million galaxies, brighter than ∼18B-mag. In order to provide the best possible identification for each galaxy we give: accurate coordinates (typical accuracy better than 2 arcsec), diameter, axis ratio and position angle. Diameters and axis ratios have been homogenized to the RC2 system at the limiting surface brightness of 25B-mag/arcsec2, using a new method, the EPIDEMIC method. In order to provide the best designation for each galaxy, we collected the names from 50 catalogues. The compatibility of the spelling is tested against NED and SIMBAD, and, as far as possible we used a spelling compatible with both. For some cases, where no consensus exists between NED, SIMBAD and LEDA, we propose some changes that could make the spelling of names fully compatible. The full catalog is distributed through the CDS and can be extracted from HYPERLEDA, . File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file pgc.dat 342 983261 Catalog of galaxies (table 5 in the paper) accro.dat 82 50 Table of adopted acronyms (table 2 in the paper)
See also: : the Hyperleda Home Page VII/238 : HYPERLEDA. II. Catalog of homogenized HI data (Paturel+, 2003) Byte-by-byte Description of file: pgc.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [PCG] 4- 10 I7 --- PGC [1/3099300] PGC number 12 A1 --- --- [J] 13- 14 I2 h RAh Right ascension (J2000) 15- 16 I2 min RAm Right ascension (J2000) 17- 20 F4.1 s RAs Right ascension (J2000) 21 A1 --- DE- Declination sign (J2000) 22- 23 I2 deg DEd Declination (J2000) 24- 25 I2 arcmin DEm Declination (J2000) 26- 27 I2 arcsec DEs Declination (J2000) 29- 30 A2 --- OType [GM ] Object type (1) 32- 36 A5 --- MType Provisional morphological type from LEDA according to the RC2 code. 37- 41 F5.2 [0.1arcmin] logD25 ?=9.99 Apparent diameter (2) 42- 44 A3 --- --- [±] 45- 48 F4.2 [0.1arcmin] e_logD25 ?=9.99 Actual error of logD25 51- 54 F4.2 [---] logR25 ?=9.99 Axis ratio in log scale (log of major axis to minor axis) 55- 57 A3 --- --- [±] 58- 61 F4.2 [---] e_logR25 ?=9.99 Actual error on logR25 64- 67 F4.0 deg PA ?=999. Adopted 1950-position angle (3) 68- 70 A3 --- --- [±] 71- 74 F4.0 deg e_PA ?=999. rms uncertainty on PA 76- 77 I2 --- o_ANames Number of alternate names. 79-341 A263 --- ANames Alternate names (4)
Note (1): 'G', galaxies; 'M', multiple system; GM, galaxy in multiple system. Note (2): Apparent diameter in log scale (D in 0.1arcmin) converted to the RC3 system at the isophote 25B-mag/arcsec2 (section 3); Note (3): Adopted 1950-position angle, measured from the North to the East. Its value covers the range 0-180. A few values exactly equal to zero are taken as 180. Note (4): Alternate names following the hierarchy given in accro.dat file. Up to 12 names, each 22 bytes long, is given here. Names that correspond to a multiple system are written in parenthesis. 151 Names that do not agree with NED identification have been written with a question mark (?). 677 names that have been moved from one galaxy to another since the first catalog have been written with an exclamation point (!).
Byte-by-byte Description of file: accro.dat
Bytes Format Units Label Explanations
1- 23 A23 --- Name Example of the name (1) 25- 51 A27 --- Aut Authors' name 53- 82 A30 ---- Ref BibCode or catalog number
Note (1): For each adopted acronym we give an example of a name and the reference where the acronym was created. When an acronym comes from several references (e.g., KUG), we give the latest reference that lists the former ones.
Acknowledgements: Georges Paturel
(End) Patricia Bauer [CDS] 28-Nov-2003
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

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