J/ApJ/633/844 Stellar mass in disk-dominated galaxies (Pizagno+, 2005) ================================================================================ Dark matter and stellar mass in the luminous regions of disk galaxies. Pizagno J., Prada F., Weinberg D.H., Rix H.-W., Harbeck D., Grebel E.K., Bell E.F., Brinkmann J., Holtzman J., West A. =2005ApJ...633..844P ================================================================================ ADC_Keywords: Galaxies, spectra ; Galaxies, rotation Keywords: dark matter - galaxies: kinematics and dynamics - galaxies: photometry Abstract: We investigate the correlations among stellar mass (M*), disk scale length (R_d_), and rotation velocity at 2.2 disk scale lengths (V_2.2_) for a sample of 81 disk-dominated galaxies (disk/total>=0.9) selected from the SDSS. We measure V_2.2_ from long-slit H{alpha} rotation curves and infer M* from galaxy i-band luminosities (L_i_) and g-r colors. Description: In a series of observing runs between 2001 June and 2004 April, we obtained long-slit spectra covering the H{alpha} wavelength region for a total of 234 galaxies in the velocity and absolute magnitude ranges described above, using the TWIN spectrograph on the Calar Alto 3.5m telescope (189 galaxies) and the CCDS on the MDM 2.4m telescope (45 galaxies). File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table1.dat 92 81 Galaxy Properties -------------------------------------------------------------------------------- See also: http://www.sdss.org/ : SDSS Home Page Byte-by-byte Description of file: table1.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 19 A19 --- SDSS SDSS name 21- 26 F6.2 Mpc Dist Distance 28- 31 F4.2 Mpc e_Dist Error on Dist 33- 37 F5.2 10+10solLum Li SDSS i-band luminosity 39- 42 F4.2 10+10solLum e_Li Error in Li 44- 47 F4.2 mag g-r g-r color index 49- 52 F4.2 mag e_g-r Error in g-r 54- 58 F5.2 10+10solMass Mass Stellar mass 60- 63 F4.2 10+10solMass e_Mass Error in Mass 65- 68 F4.2 --- fd GALFIT disk fraction 70- 74 F5.2 kpc Rd Disk exponential scale length 76- 79 F4.2 kpc e_Rd Error in Rd 81- 86 F6.2 km/s V2.2 Rotation velocity at 2.2 disk scale length 88- 92 F5.2 km/s e_V2.2 Error in V2.2 -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Marianne Brouty [CDS] 26-Jul-2006