Evolution and environment of early-type galaxies - INSPIRE

DataBETA

Evolution and environment of early-type galaxies

Mariangela Bernardi
(
- Pennsylvania U.
)
,
Robert C. Nichol
(
- Portsmouth U., ICG
)
,
Ravi K. Sheth
(
- Pennsylvania U.
)
,
C.J. Miller
(
- Cerro-Tololo InterAmerican Obs.
)
,
J. Brinkmann
(
- Apache Point Observ.
)

Sep, 2005

58 pages

Published in:

Astron.J. 131 (2006) 1288-1317

e-Print:

astro-ph/0509360 [astro-ph]

DOI:

10.1086/499522

Experiments:

SDSS

View in:

ADS Abstract Service

reference search113 citations

Citations per year

Abstract: (arXiv)

We study the photometric and spectral properties of 39320 early-type galaxies within the SDSS, as a function of both local environment and redshift. The distance to the nearest cluster of galaxies and the distance to the 10th nearest luminous neighbor were used to define two extremes in environment. The properties of early-type galaxies are weakly but significantly different in these two extremes: objects in dense environments are less than ~1 Gyr older and alpha-enhanced by ~0.02 relative to their counterparts of the same velocity dispersion in less dense regions, but the metallicities show no dependence on environment. This suggests that, in dense regions, the stars in early-type galaxies formed at slightly earlier times, and on a slightly shorter timescale, than in less dense regions. In addition, objects at lower redshifts are older, but have the same metallicities and alpha-enhancements as their counterparts of the same sigma at higher redshifts, as expected if the low redshift sample is a passively-aged version of the sample at higher redshifts. These significant conclusions are derived from several pieces of evidence discussed in this paper, including the FP of early-types, the observed evolution of absorption linestrengths (measured from a large ensemble of composite spectra which we provide in tabular form) over small lookback times, and comparison with the predictions of single burst (non-solar abundance) stellar population synthesis models (which also indicate that age, metallicity and alpha-enhancement all increase with velocity dispersion).

Note:

58 pages, 22 figures. Accepted by AJ. The full version of Tables 1, 2, 3, 4 and 7, 8 are available at http://www.physics.upenn.edu/~bernardm/PAPERS/EnvEvol/TABLES/ A README file (bernardi_TABLES.README) explains the content of the directory. The 925 composite spectra can be downloaded from http://www.physics.upenn.edu/~bernardm/PAPERS/EnvEvol/SPECTRA/ A README file (bernardi_COMPOSITES.README) explains the content of the directory. Table 9: the ZP of the Age-sigma relation has been corrected

galaxies: elliptical and lenticular, cD
galaxies: evolution
galaxies: fundamental parameters
galaxies: photometry
galaxies: stellar content

References(73)

Figures(0)

The First Data Release of the Sloan Digital Sky Survey

SDSS

Collaboration

•

Kevork Abazajian
(
- Fermilab
)

et al.

- Astron.J. 126 (2003) 2081
•
e-Print:
- astro-ph/0305492
•
DOI:
- 10.1086/378165

Differential galaxy evolution in cluster and field galaxies at z=0.3

- Astrophys.J. 527 (1999) 54-79
•
e-Print:
- astro-ph/9906470
•
DOI:
- 10.1086/308056

The environmental dependence of the infrared luminosity and stellar mass functions

- Astrophys.J. 557 (2001) 117
•
e-Print:
- astro-ph/0104042
•
DOI:
- 10.1086/321670

Galaxy ecology: Groups and low - density environments in the SDSS and 2dFGRS

et al.

- Mon.Not.Roy.Astron.Soc. 348 (2004) 1355
•
e-Print:
- astro-ph/0311379
•
DOI:
- 10.1111/j.1365-2966.2004.07453.x

Tidal truncation of gas replenishment and global suppression of galactic star formation in distant clusters

- Publ.Astron.Soc.Jap. 53 (2001) 395
•
e-Print:
- astro-ph/0106401
•
DOI:
- 10.1093/pasj/53.3.395

The redshift evolution of the stellar populations in elliptical galaxies

- Astrophys.J.Lett. 463 (1996) L51
•
e-Print:
- astro-ph/9604125
•
DOI:
- 10.1086/310071

Cluster versus field elliptical galaxies and clues on their formation

et al.

- Astrophys.J.Lett. 508 (1998) L143
•
e-Print:
- astro-ph/9810066
•
DOI:
- 10.1086/311742

- Astrophys.J. 508 143

Early - Type Galaxies in the SDSS I. The Sample

SDSS

Collaboration

•

Mariangela Bernardi

et al.

- Astron.J. 125 (2003) 1817
•
e-Print:
- astro-ph/0301631
•
DOI:
- 10.1086/367776

Early-Type Galaxies in the SDSS II: Correlations between Observables

SDSS

Collaboration

•

Mariangela Bernardi

et al.

- Astron.J. 125 (2003) 1849
•
e-Print:
- astro-ph/0301624
•
DOI:
- 10.1086/374256

Early-Type Galaxies in the SDSS III: The Fundamental Plane

SDSS

Collaboration

•

Mariangela Bernardi

et al.

- Astron.J. 125 (2003) 1866
•
e-Print:
- astro-ph/0301626
•
DOI:
- 10.1086/367794

Early-Type Galaxies in the SDSS IV: Colors and Chemical Evolution

SDSS

Collaboration

•

Mariangela Bernardi

et al.

- Astron.J. 125 (2003) 1882
•
e-Print:
- astro-ph/0301629
•
DOI:
- 10.1086/367795

Advanced camera for surveys photometry of the cluster rdcs1252.9-2927: the color-magnitude relation at z=1.24

et al.

- Astrophys.J.Lett. 596 (2003) L143-L146
•
e-Print:
- astro-ph/0309036
•
DOI:
- 10.1086/379234

Colors, magnitudes and velocity dispersions in early-type galaxies: Implications for galaxy ages and metallicities

Mariangela Bernardi
(
)
,
Ravi K. Sheth
(
)
,
Robert C. Nichol
(
- Portsmouth U., ICG
)
,
D.P. Schneider
(
- Penn State U., Astron. Astrophys.
)
,
J. Brinkmann
(
- Apache Point Observ.
)

- Astron.J. 129 (2005) 61-72
•
e-Print:
- astro-ph/0409571
•
DOI:
- 10.1086/426336

An Efficient Algorithm for Positioning Tiles in the Sloan Digital Sky Survey

Michael R. Blanton
(
- Fermilab
)
,
Robert H. Lupton
(
- Princeton U. Observ.
)
,
F. Miller Malley
(
- Princeton U.
)
,
Neal Young
(
- Dartmouth Coll.
)
,
Idit Zehavi
(
- Fermilab
)

et al.

- Astron.J. 125 (2003) 2276-2286
•
e-Print:
- astro-ph/0105535
•
DOI:
- 10.1086/344761

- Mon.Not.Roy.Astron.Soc. 254 589

Precision Photometry of Early Type Galaxies in the Coma and Virgo Clusters: A Test of the Universality of the Colour / Magnitude Relation. 2. Analysis

- Mon.Not.Roy.Astron.Soc. 254 (1992) 601

Stellar population synthesis at the resolution of 2003

G. Bruzual
(
- Merida, CIDA
)
,
Stephane Charlot
(
- Garching, Max Planck Inst. and
- Paris, Inst. Astrophys.
)

- Mon.Not.Roy.Astron.Soc. 344 (2003) 1000
•
e-Print:
- astro-ph/0309134
•
DOI:
- 10.1046/j.1365-8711.2003.06897.x

On the environmental dependence of cluster galaxy assembly timescale

Conrado Carretero
(
- Laguna U., Tenerife
)
,
A. Vazdekis
(
- Laguna U., Tenerife
)
,
J.E. Beckman
(
- Laguna U., Tenerife and
- CSIC, Catalunya
)
,
P. Sanchez-Blazquez
(
- Madrid U.
)
,
J. Gorgas
(
- Madrid U.
)

- Astrophys.J.Lett. 609 (2004) L45-L48
•
e-Print:
- astro-ph/0405512
•
DOI:
- 10.1086/422749

The peculiar motions of early-type galaxies in two distant regions - v. the mg-sigma relation, age and metallicity

et al.

- Mon.Not.Roy.Astron.Soc. 303 (1999) 813
•
e-Print:
- astro-ph/9811089
•
DOI:
- 10.1046/j.1365-8711.1999.02292.x

Fundamental properties of elliptical galaxies

- Astrophys.J. 313 (1987) 59
•
DOI:
- 10.1086/164948

Galaxy morphology in rich clusters: Implications for the formation and evolution of galaxies

A. Dressler
(
- Carnegie Inst. Observ.
)

- Astrophys.J. 236 (1980) 351-365
•
DOI:
- 10.1086/157753

Spectroscopy and photometry of elliptical galaxies. 1. A New distance estimator

Alan Dressler
(
- Carnegie Inst. Observ. and
- Cambridge U. and
- Arizona State U. and
- Kitt Peak Observ. and
- Lick Observ.
)
,
Donald Lynden-Bell
(
- Carnegie Inst. Observ. and
- Cambridge U. and
- Arizona State U. and
- Kitt Peak Observ. and
- Lick Observ.
)
,
David Burstein
(
- Carnegie Inst. Observ. and
- Cambridge U. and
- Arizona State U. and
- Kitt Peak Observ. and
- Lick Observ.
)
,
Roger L. Davies
(
- Carnegie Inst. Observ. and
- Cambridge U. and
- Arizona State U. and
- Kitt Peak Observ. and
- Lick Observ.
)
,
S.M. Faber
(
- Carnegie Inst. Observ. and
- Cambridge U. and
- Arizona State U. and
- Kitt Peak Observ. and
- Lick Observ.
)

et al.

- Astrophys.J. 313 (1987) 42-58
•
DOI:
- 10.1086/164947

- Astrophys.J. 312 42

Spectroscopic Target Selection for the Sloan Digital Sky Survey: The Luminous Red Galaxy Sample

SDSS

Collaboration

•

Daniel J. Eisenstein

et al.

- Astron.J. 122 (2001) 2267
•
e-Print:
- astro-ph/0108153
•
DOI:
- 10.1086/323717

1-25 of 73
1
2
3
25 / page