Feedback and late star formation in elliptical galaxies

Ignacio Ferreras; Evan Scannapieco; Joseph Silk

doi:10.1023/A:1024025607898

Feedback and late star formation in elliptical galaxies

Ignacio Ferreras, Evan Scannapieco, Joseph Silk

Research output: Contribution to journal › Article › peer-review

Abstract

We present a one-zone model of star formation in elliptical galaxies that includes thermal feedback from supernovae and a temperature dependent star formation efficiency. The modulation of feedback with the total mass results in the triggering of late episodes of star formation in low-mass galaxies. These small 'bursts' can occur as late as at redshifts z ∼ 0.5 but they do not change significantly the optical and NIR color-magnitude relation (CMR) of cluster galaxies, both locally and out to moderate redshifts, in agreement with the observations. However, they introduce a large scatter at the faint end of the NUV-Optical CMR, as recently found in cluster Abell 851 (z = 0.41).

Original language	English (US)
Pages (from-to)	857-860
Number of pages	4
Journal	Astrophysics and Space Science
Volume	284
Issue number	2
DOIs	https://doi.org/10.1023/A:1024025607898
State	Published - 2003
Externally published	Yes

Keywords

Galaxies: elliptical and lenticular, cD
Galaxies: evolution
Galaxies: stellar content

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1023/A:1024025607898

Cite this

@article{db6f9ef2b2b24004b412fd4bc8aea3e3,

title = "Feedback and late star formation in elliptical galaxies",

abstract = "We present a one-zone model of star formation in elliptical galaxies that includes thermal feedback from supernovae and a temperature dependent star formation efficiency. The modulation of feedback with the total mass results in the triggering of late episodes of star formation in low-mass galaxies. These small 'bursts' can occur as late as at redshifts z ∼ 0.5 but they do not change significantly the optical and NIR color-magnitude relation (CMR) of cluster galaxies, both locally and out to moderate redshifts, in agreement with the observations. However, they introduce a large scatter at the faint end of the NUV-Optical CMR, as recently found in cluster Abell 851 (z = 0.41).",

keywords = "Galaxies: elliptical and lenticular, cD, Galaxies: evolution, Galaxies: stellar content",

author = "Ignacio Ferreras and Evan Scannapieco and Joseph Silk",

year = "2003",

doi = "10.1023/A:1024025607898",

language = "English (US)",

volume = "284",

pages = "857--860",

journal = "Astrophysics and Space Science",

issn = "0004-640X",

publisher = "Springer Netherlands",

number = "2",

}

TY - JOUR

T1 - Feedback and late star formation in elliptical galaxies

AU - Ferreras, Ignacio

AU - Scannapieco, Evan

AU - Silk, Joseph

PY - 2003

Y1 - 2003

N2 - We present a one-zone model of star formation in elliptical galaxies that includes thermal feedback from supernovae and a temperature dependent star formation efficiency. The modulation of feedback with the total mass results in the triggering of late episodes of star formation in low-mass galaxies. These small 'bursts' can occur as late as at redshifts z ∼ 0.5 but they do not change significantly the optical and NIR color-magnitude relation (CMR) of cluster galaxies, both locally and out to moderate redshifts, in agreement with the observations. However, they introduce a large scatter at the faint end of the NUV-Optical CMR, as recently found in cluster Abell 851 (z = 0.41).

AB - We present a one-zone model of star formation in elliptical galaxies that includes thermal feedback from supernovae and a temperature dependent star formation efficiency. The modulation of feedback with the total mass results in the triggering of late episodes of star formation in low-mass galaxies. These small 'bursts' can occur as late as at redshifts z ∼ 0.5 but they do not change significantly the optical and NIR color-magnitude relation (CMR) of cluster galaxies, both locally and out to moderate redshifts, in agreement with the observations. However, they introduce a large scatter at the faint end of the NUV-Optical CMR, as recently found in cluster Abell 851 (z = 0.41).

KW - Galaxies: elliptical and lenticular, cD

KW - Galaxies: evolution

KW - Galaxies: stellar content

UR - http://www.scopus.com/inward/record.url?scp=0345866705&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0345866705&partnerID=8YFLogxK

U2 - 10.1023/A:1024025607898

DO - 10.1023/A:1024025607898

M3 - Article

AN - SCOPUS:0345866705

SN - 0004-640X

VL - 284

SP - 857

EP - 860

JO - Astrophysics and Space Science

JF - Astrophysics and Space Science

IS - 2

ER -

Feedback and late star formation in elliptical galaxies

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this