Supernova feedback and the bend of the Tully-Fisher relation

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

Resultado de la investigación: Contribución a una revistaArtículo de la conferenciarevisión 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 originalInglés
Páginas (desde-hasta)56-57
Número de páginas2
PublicaciónRevista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
Volumen40
EstadoPublicada - 1 dic 2011
Evento13th Latin American Regional Meeting of the International Astronomical Union, LARIM 2010 - Morelia, Michoacan, México
Duración: 8 nov 201012 nov 2010

Áreas temáticas de ASJC Scopus

  • Ciencias planetarias y espacial
  • Astronomía y astrofísica

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