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VII/238             HYPERLEDA. II. Homogenized HI data       (Paturel+, 2003)

HYPERLEDA. II. The homogenized HI data. Paturel G., Theureau G., Bottinelli L., Gouguenheim, Coudreau-Durand N., Hallet N., Petit C. <Astron. Astrophys. 412, 57 (2003)> =2003A&A...412...57P
ADC_Keywords: Galaxy catalogs ; H I data ; Radial velocities Keywords: galaxies: general - catalogs Abstract: After a compilation of HI data from 611 references and new observations made in Nancay, we produce a catalog of homogenized HI data for 16781 galaxies. The homogenization is made using the EPIDEMIC method from which all data are progressively converted into the adopted standard. The result is a catalog giving: 1) the logarithm of twice the maximum rotation velocity, log2VMsini, converted to the system of Mathewson et al. (1996ApJS..107...97M). This quantity is given without correction for inclination; 2) the HI magnitude, m21, (area of the 21-cm line width expressed in magnitude) converted to the flux system of Theureau et al. (1998A&AS..130..333T); 3) the HI velocity, VHI, expressed with the optical definition (i.e., using wavelengths instead frequencies). The typical uncertainties are: 0.04 for log2VMsini, 0.25mag for m21 and 9km/s for VHI. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file hidat.dat 102 16781 Final catalog of homogenized HI data (Table 8) refs.dat 145 512 References (Table 3) newobs.dat 130 809 New observations (Table A1) notes.dat 173 72 Individual notes (Table A3)
See also: VII/237 : HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003) : LEDA Homepage Byte-by-byte Description of file: hidat.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [PGC] 4- 10 I7 --- PGC [2/3098573] PGC number from LEDA 13- 32 A20 --- AName Alternate name from LEDA 36 A1 --- --- [J] 37- 38 I2 h RAh Right ascension (J2000) 39- 40 I2 min RAm Right ascension (J2000) 41- 44 F4.1 s RAs Right ascension (J2000) 45 A1 --- DE- Declination sign (J2000) 46- 47 I2 deg DEd Declination (J2000) 48- 49 I2 arcmin DEm Declination (J2000) 50- 51 I2 arcsec DEs Declination (J2000) 53- 57 F5.3 [km/s] log(2Vm) Mean homogenized decimal logarithm of twice the maximum rotation velocity uncorrected for inclination, log2(VMsini) 58- 60 A3 --- --- [±] 61- 65 F5.3 [km/s] e_log(2Vm) Mean error on log2VM,sini 67 I1 --- u_log(2Vm) [0/1] Uncertainty flag (1 = uncertain) 70- 74 F5.2 mag m21 ?=99.99 Mean homogenized 21-cm magnitude (-2.5log(0.2366F)+15.84, F in Jy*km/s) 75- 77 A3 --- --- [±] 78- 82 F5.2 mag e_m21 ?=99.99 mean error on m21 84 I1 --- u_m21 [0/1] Uncertainty flag (1 = uncertain) 87- 93 F7.0
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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