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.
<Astrophys. J., 633, 844-856 (2005)>
=2005ApJ...633..844P 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 (Rd), and rotation velocity at 2.2 disk scale lengths
(V2.2) for a sample of 81 disk-dominated galaxies (disk/total≥0.9)
selected from the SDSS. We measure V2.2 from long-slit Hα
rotation curves and infer M* from galaxy i-band luminosities (Li)
and g-r colors.
Description:
In a series of observing runs between 2001 June and 2004 April, we
obtained long-slit spectra covering the Hα 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 92 81 Galaxy Properties
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See also:
http://www.sdss.org/ : SDSS Home Page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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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
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History:
From electronic version of the journal
(End) Marianne Brouty [CDS] 26-Jul-2006