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For refcode 2006MNRAS.370.1339H:
Retrieve 847 NED objects in this reference.
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Copyright by Royal Astronomical Society. 2006MNRAS.370.1339H Isophotal shapes of elliptical/lenticular galaxies from the Sloan Digital Sky Survey Hao, C. N.; Mao, S.; Deng, Z. G.; Xia, X. Y.; Wu, Hong Abstract. We revisit the shapes of isophotes for elliptical (E) and lenticular (S0) galaxies by studying 847 nearby early-type galaxies selected from the Sloan Digital Sky Survey (SDSS) Data Release 4 (DR4) with velocity dispersions above 200 km s^-1^. The iraf task ellipse was used to derive the deviations of the isophotes from pure ellipses (Fourier coefficients a_3_/a and a_4_/a), position angles (PAs) and ellipticities as a function of radius. We show the statistical distributions of the a_3_/a and a_4_/a parameters as a function of velocity dispersion, magnitude and colour. The a_4_/a parameter is correlated with the ellipticity and absolute Petrosian magnitude of galaxies. No significant correlation was found between the a_4_/a parameter with colour and velocity dispersion. A cross-correlation between the Faint Images of the Radio Sky at Twenty-cm (FIRST) survey and the SDSS data reveals a lack of powerful radio emitters in discy E/S0s, as previously found by Bender et al. We also find that boxy E/S0s favour denser environments while discy E/S0s favour more isolated environments. The median values of changes in the ellipticity and PA between one and one and a half Petrosian half-light radii in the isophotes are about -0.023 and ---MISSING--- , respectively. The average change in the PA is much larger, about ---MISSING--- , due to an extended tail. The change in ellipticity is weakly correlated with the ellipticity itself, with an increasing ellipticity for galaxies with higher ellipticity as the radius increases. The isophote parameters for the 847 galaxies are available online. Key words: galaxies: elliptical and lenticular, cD,galaxies: photometry,galaxies: structure =========================================================================== 2006MNRAS.373.1648R Erratum: Simulating galaxy clusters - I. Thermal and chemical properties of the intracluster medium (MNRAS 371 548 [2006]) A. D. Romeo, J. Sommer-Larsen, L. Portinari, V. Antonuccio-Delogu Abstract. The paper 'Simulating galaxy clusters-I. Thermal and chemical properties of the intracluster medium' was published in Mon. Not. R. Astron. Soc. 371, 548-568 (2006). The affiliation of one of the co-authors, V. Antonuccio-Delogu, is corrected in this erratum. REFERENCES Romeo A. D., Sommer-Larsen J., Portinari L., Antonuccio-Delogu V., 2006,MNRAS, 371, 548 Key words: errata, addenda, methods: N-body simulations, galaxies: clusters: general, galaxies: evolution, galaxies: formation, cosmology: theory ===========================================================================
Retrieve 847 NED objects in this reference.
Please click here for ADS abstract

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