CDROM/APJS/V107/P097 Parameters of 2447 Southern Spirals (Mathewson+ 1996) ================================================================================ Parameters of 2447 Southern Spiral Galaxies for Use in the Tully-Fisher Relation D. S. Mathewson and V. L. Ford <1996, ApJS, 107, 97> =1996ApJS..107...97M ================================================================================ Abstract: I-band luminosities, rotational velocities, and redshifts of 1092 spiral galaxies have been measured by CCD photometry and Halpha spectroscopy using the 1 m and 2.3 m telescopes at Siding Spring Observatory, respectively. The results are tabulated. Luminosity profiles and Halpha rotation curves are given for the galaxies. When these results are combined with similar data for 1355 spiral galaxies published previously (Mathewson, Ford, & Buchhorn, hereafter Paper I), it provides a large, uniform, and unique data set with which to measure, via the Tully-Fisher relation, the peculiar velocities of galaxies in the local universe to a distance of 11,000 km/s (Mathewson & Ford). Taking advantage of the opportunity for publishing this data in machine-readable form, in the CD-ROM, we have also published similar data for the 1355 galaxies in Paper I. Keywords: galaxies: distances and redshifts -- galaxies: kinematics and dynamics -- galaxies: photometry -- surveys Description: In the directory named "figure1" are Postscript files containing the surface brightness plots from figure 1 of the printed paper in 70 files named p01.ps through p70.ps. The directory "figure2" contains Postscript files containing H-alpha rotation curves from figure 2 of the printed paper in 63 files named p01.ps through p63.ps. File Summary: -------------------------------------------------------------------------------- File Name Lrecl Records Explanations -------------------------------------------------------------------------------- table1.dat 219 2447 Physical parameters, photometric and velocity data for survey galaxies -------------------------------------------------------------------------------- Byte-per-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1-10 A10 --- Name *Galaxy identification number 11-13 I3 h RAh Right ascension, 1950 14-16 I3 min RAm R.A. 17-19 I3 s RAs R.A. 20 1X --- --- Blank 21 A1 --- DE- Declination sign 22-23 I2 deg DEd Declination, 1950 24-26 I3 arcmin DEm Dec. 27-29 I3 arcsec DEs Dec. 30-37 F8.2 deg GLon Galactic longitude 38-44 F7.2 deg GLat Galactic latitude 45-52 F8.2 deg SGL Supergalactic longitude 53-59 F7.2 deg SGB Supergalactic latitude 60-61 2X --- --- Blank 62-67 A6 --- Class Classification in the Hubble system 68 1X --- --- Blank 69-70 A2 --- Type Morphological type, +3 for Sb to +8 for Sd 71-75 F5.1 arcmin aESO Major axis diameter from various catalogs 76-81 F6.2 arcmin a *Major axis diameter 82-86 F5.2 arcmin b *Minor axis diameter 87-90 I4 deg i *Inclination of optical disk 91-95 I5 deg PA *Position angle of the major axis 96-101 F6.2 arcmin D0 *Face-on diameter 102-107 F6.2 mag Aext *Extinction in our Galaxy in I magnitudes 108-113 F6.2 mag Aint *Internal extinction in I magnitudes 114-119 F6.2 mag Kz *K correction in I magnitudes 120-126 F7.2 mag It Total I magnitudes 127-133 F7.2 mag Itc *Total I magnitudes corrected for extinction 134-140 F7.2 mag/arcsec2 ISB *Integrated surface brightness 141-147 I7 km/s Vopt *[]? Heliocentric systemic velocity, optical 148-153 I6 km/s Vradio *[]? Heliocentric systemic velocity, radio 154-158 I5 km/s DVopt *[]? Diff. of max and min optical rotation 159-163 I5 km/s DV50 *[]? Diff. of H I profile at 50% intensity 164-167 I4 km/s e_DV501 *[]? First uncertainty in DV50 measurement 168-170 I3 km/s e_DV502 *[]? Second uncertainty in DV50 measurement 171-175 I5 km/s DV20 *[]? Diff of H I profile at 20% intensity 176-179 I4 km/s e_DV201 *[]? First uncertainty in DV20 measurement 180-182 I3 km/s e_DV202 *[]? Second uncertainty in DV20 measurement 183-187 I5 km/s Vrot *Maximum rotation velocity of spiral galaxy 188 A1 --- u_Vrot *[:] Vrot calculated by alternate method 189-194 F6.2 Jy.km/s F_HI *[]? H I flux density integral 195-200 F6.1 mJy rms []? rms noise 201-206 F6.1 --- S_N []? Peak signal divided by rms noise 207-213 I7 km/s Vcmb *Heliocentric systemic velocity in CMB frame 214-219 I6 km/s Vlg *Heliocentric velocity in Local Group frame -------------------------------------------------------------------------------- Notes for file: table1.dat -------------------------------------------------------------------------------- Name: Galaxy identification number; for galaxies south of -17.5 deg; it is the ESO-Uppsala Catalog number, and for galaxies north of -17.5 deg, it is either the UGC number, the NGC or IC designation, or the MCG number. a, b: Major and minor axes diameters of the I = 23.5 mag/arcsec2 isophote. i: Inclination of the optical disk computed from the average of axial ratios of the ellipses of surface brightness I = 22.5, 23.0, and 23.5 mag/arcsec2, following Bothun et al, 1985, ApJS, 57, 423. PA: Position angle of the major axis, which is an average of the position angles of the major axes of the ellipses of surface brightness I = 22.5, 23.0, and 23.5 mag/arcsec2 or the P.A. given in the ESO-Uppsala Catalog. D0: Face-on diameter D(0) computed using the relation log D(0) = log(a) - 0.235 log(a/b) + 0.09 Aext where Aext = the absorption in our Galaxy, and the maximum value of a/b is 5 (cf. de Vaucouleurs, de Vaucouleurs, & Corwin 1976). Aext: The extinction in our Galaxy in I magnitudes. This has been calculated following Burstein & Heiles (1978). The relation used is Aext = 4.05 x 10^-4 F(HI) - 0.06. F(HI) is the integrated "zero-velocity" H I flux density in Jy km/s, measured with the 64 m Parkes radio telescope in the direction of each galaxy. The extinction in I is taken to be 42% of that in B. Aint: Internal extinction in a galaxy in I magnitudes. The corrections prescribed by Tully & Fouque, 1985, ApJS, 58, 67, were used to yield "face-on" magnitudes. The extinction in I is taken to be 42% of that in B. Kz: K-correction in I magnitudes. The values were taken from Schneider et al. 1983, ApJ, 264, 337. Itc: Total I magnitudes corrected for internal and external extinction and K dimming: Itc = It - Aext - Aint - Kz. ISB: Integrated surface brightness in I magnitudes/arcsec2: ISB = Ic_D(0) + 5 log D(0) + 2.5 log pi where Ic_D(0) = I_D(0) - Aext - Aint - Kz and I_D(0) are measured from the GASP output files. Vopt: Heliocentric systemic velocity taken as the arithmetic mean of the maxium and minimum velocities of the optical rotation curve. Vradio: Heliocentric systemic velocity taken as the arithmetic mean of the velocities where the H I profile falls to 50% of the mean of the highest channels in each half of the profile. DVopt: Half the difference between the maximum and minimum values of the optical rotation curve, corrected for relativistic effects, i.e., divided by 1+z. DV50: Half the widths of the H I profile between points where the intensity falls to 50% of the highest channels in each half of the profile and points corrected for relativistic effects. e_DV501, e_DV502: Uncertainties in the measurement of DV50. These errors were calculated by perturbing the 50% level by the rms noise in the spectrum and measuring the amount by which the width changed. DV20: Same as DV50, but for the 20% level. e_DV201, e_DV202: Same as e_DV20, but for the 20% level. Sometimes due to noise spikes, unrealistic error values were recorded. In this case, the the error fields may be blank. Vrot: Maximum velocity of rotation of the spiral galaxy, obtained by dividing DVopt by sin i. When there was only a radio measurement, DV50 was converted to DVopt using the algorithm DVopt = 1.03 DV50 - 11. u_Vrot: The colons after 20 of the Vrot entries indicate that the rotational velocities were derived from radio measurements by M. Haynes and R. Giovanelli, and converted to DVopt using the algorithm DVopt = 1.10 DV50 - 27. F_HI: H I flux density integral corrected for beam effects. Vcmb: Heliocentric systemc velocity converted to the cosmic microwave background (CMB) frame of reference. If both Vopt and Vradio are given, Vopt is used, otherwise Vradio. There is no significant difference between the two values. Vlg: The same as Vcmb, except heliocentric velocities are converted to the frame of the Local Group. -------------------------------------------------------------------------------- ================================================================================ (End) Lee Brotzman [ADS] 04-Nov-96