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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) J/MNRAS/414/940 : ATLAS3D project. IV (Young+, 2011) J/MNRAS/416/1680 : ATLAS3D project. VII (Cappellari+, 2011) J/MNRAS/433/2812 : ATLAS3D project. XXIII (Krajnovic+, 2013) J/MNRAS/446/120 : ATLAS3D project. XXIX (Duc+, 2015) J/MNRAS/448/3484 : ATLAS3D Project. XXX (McDermid+, 2015) 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 λR parameter measured within 1Re (3) 49- 53 F5.3 --- lamRe/2 λR 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 Bois et al., Paper VI 2011MNRAS.416.1654B Cappellari et al., Paper VII 2011MNRAS.416.1680C, Cat. J/MNRAS/416/1680 Khochfar et al., Paper VIII 2011MNRAS.417..845K Duc et al., Paper IX 2011MNRAS.417..863D Davis et al., Paper X 2011MNRAS.417..882D Crocker et al., Paper XI 2012MNRAS.421.1298C Lablanche et al., Paper XII 2012MNRAS.424.1495L Serra et al., Paper XIII 2012MNRAS.422.1835S Krajnovic et al., Paper XIV 2013MNRAS.432.1768K Cappellari et al., Paper XV 2013MNRAS.432.1709C Bayet et al., Paper XVI 2013MNRAS.432.1742B Krajnovic et al., Paper XVII 2013MNRAS.432.1768K Alatalo et al., Paper XVIII 2013MNRAS.432.1796A Sarzi et al., Paper XIX 2013MNRAS.432.1845S Cappellari et al., Paper XX 2013MNRAS.432.1862C Scott et al., Paper XXI 2013MNRAS.432.1894S Martig et al., Paper XXII 2013MNRAS.432.1914M Krajnovic et al., Paper XXIII 2013MNRAS.433.2812K, Cat. J/MNRAS/433/2812 Davis et al., Paper XXIV 2013MNRAS.429..534D Cappellari et al., Paper XXV 2013MNRAS.432.1709C Bayet et al., Paper XXVI 2013MNRAS.432.1742B Krajnovic et al., Paper XXVII 2013MNRAS.432.1768K Alatalo et al., Paper XXVIII 2013MNRAS.432.1796A Duc et al., Paper XXIX 2015MNRAS.446..120D McDermid et al., Paper XXX 2015MNRAS.448.3484M, Cat. J/MNRAS/448/3484
(End) Patricia Vannier [CDS] 23-Jan-2012
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