Supernova feedback and the bend of the Tully-Fisher relation

M. E. De Rossi; P. B. Tissera; S. E. Pedrosa

Supernova feedback and the bend of the Tully-Fisher relation

M. E. De Rossi, P. B. Tissera, S. E. Pedrosa

Exact Sciences School

Research output: Contribution to journal › Conference article › peer-review

Abstract

We have studied the origin of the Tully-Fisher relation by analysing hydrodynamical simulations in a ΔCDM universe. We found that smaller galaxies exhibit lower stellar masses than those predicted by the linear fit to high mass galaxies (fast rotators), consistently with observations. In this model, these trends are generated by the more efficient action of supernova feedback in the regulation of the star formation in smaller galaxies. Without introducing scale-dependent parameters, the model predicts that the Tully-Fisher relation bends at a characteristic velocity of ∼100 km s^-1, in agreement with previous observational and theoretical findings.

Original language	English
Pages (from-to)	56-57
Number of pages	2
Journal	Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
Volume	40
Publication status	Published - 1 Dec 2011
Event	13th Latin American Regional Meeting of the International Astronomical Union, LARIM 2010 - Morelia, Michoacan, Mexico Duration: 8 Nov 2010 → 12 Nov 2010

Keywords

Cosmology: Theory
Galaxies: Evolution
Galaxies: Formation

ASJC Scopus subject areas

Space and Planetary Science
Astronomy and Astrophysics

Cite this

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title = "Supernova feedback and the bend of the Tully-Fisher relation",

abstract = "We have studied the origin of the Tully-Fisher relation by analysing hydrodynamical simulations in a ΔCDM universe. We found that smaller galaxies exhibit lower stellar masses than those predicted by the linear fit to high mass galaxies (fast rotators), consistently with observations. In this model, these trends are generated by the more efficient action of supernova feedback in the regulation of the star formation in smaller galaxies. Without introducing scale-dependent parameters, the model predicts that the Tully-Fisher relation bends at a characteristic velocity of ∼100 km s-1, in agreement with previous observational and theoretical findings.",

keywords = "Cosmology: Theory, Galaxies: Evolution, Galaxies: Formation",

author = "{De Rossi}, {M. E.} and Tissera, {P. B.} and Pedrosa, {S. E.}",

year = "2011",

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language = "English",

volume = "40",

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T1 - Supernova feedback and the bend of the Tully-Fisher relation

AU - De Rossi, M. E.

AU - Tissera, P. B.

AU - Pedrosa, S. E.

PY - 2011/12/1

Y1 - 2011/12/1

N2 - We have studied the origin of the Tully-Fisher relation by analysing hydrodynamical simulations in a ΔCDM universe. We found that smaller galaxies exhibit lower stellar masses than those predicted by the linear fit to high mass galaxies (fast rotators), consistently with observations. In this model, these trends are generated by the more efficient action of supernova feedback in the regulation of the star formation in smaller galaxies. Without introducing scale-dependent parameters, the model predicts that the Tully-Fisher relation bends at a characteristic velocity of ∼100 km s-1, in agreement with previous observational and theoretical findings.

AB - We have studied the origin of the Tully-Fisher relation by analysing hydrodynamical simulations in a ΔCDM universe. We found that smaller galaxies exhibit lower stellar masses than those predicted by the linear fit to high mass galaxies (fast rotators), consistently with observations. In this model, these trends are generated by the more efficient action of supernova feedback in the regulation of the star formation in smaller galaxies. Without introducing scale-dependent parameters, the model predicts that the Tully-Fisher relation bends at a characteristic velocity of ∼100 km s-1, in agreement with previous observational and theoretical findings.

KW - Cosmology: Theory

KW - Galaxies: Evolution

KW - Galaxies: Formation

UR - http://www.scopus.com/inward/record.url?scp=84878307292&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:84878307292

SN - 1405-2059

VL - 40

SP - 56

EP - 57

JO - Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias

JF - Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias

T2 - 13th Latin American Regional Meeting of the International Astronomical Union, LARIM 2010

Y2 - 8 November 2010 through 12 November 2010

ER -

Supernova feedback and the bend of the Tully-Fisher relation

Abstract

Keywords

ASJC Scopus subject areas

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