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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) http://leda.univ-lyon1.fr/ : 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 km/s VHI ?=-99999. Mean homogenized HI heliocentric radial velocity 94- 96 A3 --- --- [±] 97-100 F4.0 km/s e_VHI ?=-999. Mean error on VHI 102 I1 --- u_VHI [0/1] Uncertainty flag (1 = uncertain)
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 6 I6 --- Ref Reference code 8- 11 I4 --- N21cm Number of measurements of 21-cm line width or log2(VMsini) (i.e. Not corrected for the inclination effect). 13 A1 --- Note [*] * Reference from rotation velocity curve. 15- 33 A19 --- BibCode BibCode 35- 62 A28 --- Aut Author's name 63-145 A83 --- Com Comments
Byte-by-byte Description of file: newobs.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [PGC] 4- 10 I7 --- PGC PGC number from LEDA 14- 28 A15 --- AName Alternate name from LEDA 33- 34 I2 h RAh Right ascension (J2000) 36- 37 I2 min RAm Right ascension (J2000) 39- 43 F5.2 s RAs Right ascension (J2000) 45 A1 --- DE- Declination sign (J2000) 46- 47 I2 deg DEd Declination (J2000) 49- 50 I2 arcmin DEm Declination (J2000) 52- 53 I2 arcsec DEs Declination (J2000) 58- 63 F6.0 km/s VHI HI heliocentric radial velocitY 65- 68 F4.0 km/s e_VHI ?=999. rms uncertainty on VHI 73- 76 F4.0 km/s W20 21-cm line width at 20% of the maximum 79- 82 F4.0 km/s e_W20 ?=999. rms uncertainty on W20 87- 90 F4.0 km/s W50 21-cm line width at 50% of the mqximuM 93- 96 F4.0 km/s e_W50 ?=999. rms uncertainty on W50 100-104 F5.2 mJy.km/s FHI HI flux (area of the 21-cm line) 105 A1 --- n_FHI [*] indicates a Flux uncorrected for the beam-filling effect 107-110 F4.2 mJy.km/s e_FHI rms uncertainty on FHI 114-117 F4.1 --- S/N Signal to Noise ratio 121 A1 --- Qual [ABCD] Quality of the line (1) 125 A1 --- n_PGC [*] indicates a note in file notes.dat 127-130 A4 --- Note CONF: Confusion, see file notes.dat
Note (1): Quality of the line: A: nice, high signal to noise, symmetrical, double horn profile, best data for TF application B: robust HI parameters for TF application, more noisy than "A" galaxies C: well detected but noisy profile, generally HI confused, but OK for radial velocity measurement D: marginally detected, out of use
Byte-by-byte Description of file: notes.dat
Bytes Format Units Label Explanations
1- 3 A3 --- --- [PGC] 4- 10 I7 --- PGC PGC number 14- 28 A15 --- AName Alternate Name of the galaxy 34-173 A140 --- Com Comments (1)
Note (1): References: DaCosta1998: Da Costa et al.; 1998, Cat. J/AJ/116/1 Dressler1980: Dressler A.; 1980, Cat. VII/174 Haynes1999: Haynes et al., 1999AJ....117.1668H Hick1993: Hickson, 1993ApL....29....1H KARA1993: Karachentsev et al., 1993, Cat. VII/162 KK2000: Kraan-Korteweg, 2000, Cat. J/A+AS/141/123 Lauberts1982: Lauberts, 1982, Cat. VII/34 Loveday1996: Loveday et al., 1996, cat. J/ApJS/107/201 Nilson1973: Nilson, 1973, Cat. VII/26 Prugniel1998: Prugniel & Heraudeau, 1998, Cat. J/A+AS/128/299 RC3: de Vaucouleurs et al., 1991, Cat. VII/155 Saito1990: Saito et al., 1990, Cat. VII/209 Sekiguchi1992: Sekiguchi & Wolstencroft, 1992MNRAS.255..581S
History: * 28-Nov-2003: Original catalog. * 23-Feb-2005: Sign of declination in table newobs.dat corrected * 03-Feb-2006: In the description of the file "newobs.dat", the columns 'VHI' 'W20' and 'W50' were intermixed (communicated by Karen Masters) 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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