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

Facultad Ciencias Exactas

Producción científica: Contribución a una revista › Artículo de la conferencia › revisión exhaustiva

Resumen

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.

Idioma original	Inglés
Páginas (desde-hasta)	56-57
Número de páginas	2
Publicación	Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
Volumen	40
Estado	Publicada - 1 dic. 2011
Evento	13th Latin American Regional Meeting of the International Astronomical Union, LARIM 2010 - Morelia, Michoacan, México Duración: 8 nov. 2010 → 12 nov. 2010

Áreas temáticas de ASJC Scopus

Ciencias planetarias y espacial
Astronomía y astrofísica

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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",

month = dec,

day = "1",

language = "English",

volume = "40",

pages = "56--57",

journal = "Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias",

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TY - JOUR

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

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