Early-Type Galaxies in the Sloan Digital Sky Survey. III. The Fundamental Plane

A magnitude-limited sample of nearly 9000 early-type galaxies in the redshift range 0.01 ≤ z ≤ 0.3 was selected from the Sloan Digital Sky Survey (SDSS) using morphological and spectral criteria. The fundamental plane relation in this sample is Ro ∝ σ1.49±0.05I in the r* band. It is approximately the same in the g*, i*, and z* bands. Relative to the population at the median redshift in the sample, galaxies at lower and higher redshifts have evolved only a little. If the fundamental plane is used to quantify this evolution, then the apparent magnitude limit can masquerade as evolution; once this selection effect has been accounted for, the evolution is consistent with that of a passively evolving population that formed the bulk of its stars about 9 Gyr ago. One of the principal advantages of the SDSS sample over previous samples is that the galaxies in it lie in environments ranging from isolation in the field to the dense cores of clusters. The fundamental plane shows that galaxies in dense regions are slightly different from galaxies in less dense regions.

[1]  R. Nichol,et al.  Early-Type Galaxies in the Sloan Digital Sky Survey. I. The Sample , 2003 .

[2]  E. al.,et al.  Early-type galaxies in the SDSS. I. The sample , 2003, astro-ph/0301631.

[3]  R. Nichol,et al.  Early-type Galaxies in the Sloan Digital Sky Survey. II. Correlations between Observables , 2003, astro-ph/0301624.

[4]  R. Nichol,et al.  Early-Type Galaxies in the Sloan Digital Sky Survey. IV. Colors and Chemical Evolution , 2003, astro-ph/0301629.

[5]  R. Nichol,et al.  Early type galaxies in the SDSS , 2001, astro-ph/0110344.

[6]  C. I. O. Technology.,et al.  The properties of field elliptical galaxies at intermediate redshift – III. The Fundamental Plane and the evolution of stellar populations from z≈0.4 to z=0 , 2001, astro-ph/0106147.

[7]  C. I. O. Technology.,et al.  The properties of field elliptical galaxies at intermediate redshift — II. Photometry and spectroscopy of an HST-selected sample , 2001, astro-ph/0104177.

[8]  D. Kelson,et al.  Luminosity Evolution of Field Early-Type Galaxies to z = 0.55 , 2001, astro-ph/0104155.

[9]  Jr.,et al.  The peculiar motions of early‐type galaxies in two distant regions – VI. The maximum‐likelihood Gaussian algorithm , 2000, astro-ph/0012456.

[10]  R. Saglia,et al.  The peculiar motions of early-type galaxies in two distant regions — VII. Peculiar velocities and bulk motions , 2000, astro-ph/0008418.

[11]  T. Treu,et al.  The properties of field elliptical galaxies at intermediate redshift — I. Empirical scaling laws , 1999 .

[12]  A. Fruchter,et al.  Deviations from the Fundamental Plane and the Peculiar Velocities of Clusters , 1999, astro-ph/9903380.

[13]  N. Vogt,et al.  The Magnitude-Size Relation of Galaxies out to z ∼ 1 , 1999, astro-ph/9902147.

[14]  D. Kelson,et al.  Luminosity Evolution of Early-Type Galaxies to z = 0.83: Constraints on Formation Epoch and Ω , 1998, astro-ph/9807242.

[15]  S. Djorgovski,et al.  Near-Infrared Imaging of Early-Type Galaxies. III. The Near-Infrared Fundamental Plane , 1998, astro-ph/9806315.

[16]  R. Bender,et al.  Global Relationships Among the Physical Properties of Stellar Systems , 1997, astro-ph/9707037.

[17]  R. Smith,et al.  Galaxy clusters in the Perseus-Pisces region — II. The peculiar velocity field , 1997, astro-ph/9707026.

[18]  J. Hjorth,et al.  The evolution of cluster E and S0 galaxies measured from the Fundamental Plane , 1997, astro-ph/9905155.

[19]  I. Jørgensen,et al.  The Fundamental Plane for cluster E and S0 galaxies , 1995, astro-ph/9511139.

[20]  S. Djorgovski,et al.  A Tolman Surface Brightness Test for Universal Expansion and the Evolution of Elliptical Galaxies in Distant Clusters , 1995, astro-ph/9511061.

[21]  D. Kelson,et al.  The Evolution of Early-Type Galaxies in Distant Clusters. II. Internal Kinematics of 55 Galaxies in the z=0.33 Cluster Cl 1358+62 , 1995, astro-ph/9908257.

[22]  J. Lucey,et al.  The fundamental relations of elliptical galaxies , 1993 .

[23]  R. Bender,et al.  Dynamically hot galaxies. I - Structural properties , 1992 .

[24]  J. Lucey,et al.  The fundamental plane of cluster ellipticals. , 1991 .

[25]  A. Sandage,et al.  The surface brightness test for the expansion of the universe. II. Radii, surface brightness, and absolute magnitude correlations for nearby E galaxies , 1990 .

[26]  S. Djorgovski,et al.  Fundamental Properties of Elliptical Galaxies , 1987 .

[27]  R. Davies,et al.  Spectroscopy and photometry of elliptical galaxies. I: a new distance estimator , 1987 .

[28]  John Kormendy,et al.  Brightness distributions in compact and normal galaxies. II. Structure parameters of the spheroidal component. , 1977 .

[29]  S. Faber,et al.  Velocity dispersions and mass-to-light ratios for elliptical galaxies. , 1976 .