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J/MNRAS/414/888     ATLAS3D project. III.                    (Emsellem+, 2011)

The ATLAS3D project. III. A census of the stellar angular momentum within the effective radius of early-type galaxies: unveiling the distribution of fast and slow rotators. Emsellem E., Cappellari M., Krajnovic D., Alatalo K., Blitz L., Bois M., Bournaud F., Bureau M., Davies R.L., Davis T.A., de Zeeuw P.T., Khochfar S., Kuntschner H., Lablanche P.-Y., McDermid R.M., Morganti R., Naab T., Oosterloo T., Sarzi M., Scott N., Serra P., van de Ven G., Weijmans A.-M., Young L.M. <Mon. Not. R. Astron. Soc. 414, 888 (2011)> =2011MNRAS.414..888E
ADC_Keywords: Surveys ; Galaxy catalogs ; Radial velocities ; Morphology Keywords: galaxies: elliptical and lenticular, cD - galaxies: evolution - galaxies: formation - galaxies: kinematics and dynamics - galaxies: structure Abstract: We provide a census of the apparent stellar angular momentum within one effective radius of a volume-limited sample of 260 early-type galaxies (ETGs) in the nearby Universe, using the integral-field spectroscopy obtained in the course of the ATLAS3D project. We exploit the λR parameter (previously used via a constant threshold value of 0.1) to characterize the existence of two families of ETGs: slow rotators which exhibit complex stellar velocity fields and often include stellar kinematically distinct cores, and fast rotators which have regular velocity fields. Our complete sample of 260 ETGs leads to a new criterion to disentangle fast and slow rotators which now includes a dependency on the apparent ellipticity ε. Description: The ATLAS3D project is based on a volume-limited sample of 260 targets extracted from a complete sample of ETGs. A detailed description of the selection process and properties for the sample are given in Paper I (Cappellari et al., 2011, Cat. J/MNRAS/413/813). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tableb1.dat 57 260 Ellipticities, λR and V/σ tabulated values for the ATLAS3D sample of 260 ETGs
See also: J/MNRAS/413/813 : ATLAS3D project. I. (Cappellari+, 2011) Byte-by-byte Description of file: tableb1.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Gal Galaxy name from the principal designation from the LEDA database 12- 15 F4.2 --- Rmax Largest equivalent aperture radius reached by the SAURON maps, in units of the effective radius Re 17- 21 F5.3 --- epse Moment ellipticity measured within one effective radius R, εe (1) 23- 27 F5.3 --- epse/2 Moment ellipticity measured within one-half effective radius Re/2, εe/2 (1) 29 A1 --- Band [GRSC] Source of the radial ellipticity profiles (2) 31- 35 F5.3 --- V/sige V/σ as measured within 1Re 37- 41 F5.3 --- V/sige/2 V/σ as measured within Re/2 43- 47 F5.3 --- lamRe lambdaR parameter measured within 1Re (3) 49- 53 F5.3 --- lamRe/2 lambdaR parameter measured within Re/2 (3) 55 A1 --- F/S [F/S] Fast (F) or Slow (S) rotator according to the λR and ε values at Re 57 A1 --- F/S2 [F/S] Fast (F) or Slow (S) rotator according to the λR and ε values at Re/2
Note (1): These being replaced by the global ellipticity measured from the outer isophotes for galaxies with clear bars (see text) as indicated by a "C" in column "Band". Note (2): Source of the radial ellipticity profiles as follows: G =green photometry R = red photometry S = SAURON photometry C = for galaxies which have strong bars significantly affecting the measurement of εe, and for which the outer ellipticity measurement εglob (see Paper II, 2011MNRAS.414.2923K) is used instead Note (3): λR is defined as <R|V|>/<R.sqrt(V22)> (Jesseit et al. 2009MNRAS.397.1202J), a dimensionless parameter designed to account for radial changes of angular momentum content in kinematic fields; slow rotators have λR<0.1.
History: From electronic version of the journal References: Cappellari et al., Paper I 2011MNRAS.413..813C, Cat. J/MNRAS/413/813 Krajnovic et al., Paper II 2011MNRAS.414.2923K Young et al., Paper IV 2011MNRAS.414..940Y Davis et al., Paper V 2011MNRAS.414..968D
(End) Patricia Vannier [CDS] 23-Jan-2012
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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