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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 198294.0, MPI für Astronomie / Publikationen_mpia
The properties of spiral galaxies: Confronting
hierarchical galaxy formation models with
Authors:Bell, Eric F.; Baugh, Carlton M.; Cole, Shaun; Frenk, Carlos S.; Lacey, Cedric G.
Date of Publication (YYYY-MM-DD):2003
Title of Journal:Monthly Notices of the Royal Astronomical Society
Journal Abbrev.:Monthly Notices of the Royal Astronomical Society
Start Page:367
End Page:384
Review Status:not specified
Audience:Not Specified
Abstract / Description:We compare the properties of local spiral
galaxies with the predictions of the Cole et al.
semi-analytic model of hierarchical galaxy
formation, in order to gain insight into the
baryonic processes, such as gas cooling and star
formation, that were responsible for shaping
these galaxies. On the whole, the models
reproduce the properties of present-day spirals
rather well, including the trend in scale-size
with luminosity, the width of the scale-size
distribution, the tight gas-fraction-surface
brightness and gas-fraction-star formation
history correlations, the metallicity-magnitude
correlation, and the present-day star formation
rates and stellar mass-to-light ratios. Of
special note is our demonstration that, once the
effects of dust and variations in stellar
populations have been taken into account,
published spiral galaxy scale-size distributions
derived from optical data (with widths sigma;~
0.3) can be reconciled with the width ( sigma;~
0.5) of the stellar mass scale-size distribution
predicted by the semi-analytic model.
Free Keywords:galaxies: evolution; galaxies: formation;
; galaxies: general; galaxies: spiral; galaxies:
; stellar content; dark matter
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
External Affiliations:K ouml;nigstuhl 17, D-69117 Heidelberg,
Germany), AB(Department of Physics, University of
Durham, South Road, Durham DH1 3LE),
AC(Department of Physics, University of Durham,
South Road, Durham DH1 3LE), AD(Department of
Physics, University of Durham, South Road, Durham
DH1 3LE), AE(Department of Physics, University of
Durham, South Road, Durham DH1 3LE; CRAL
Observatorie de Lyon, 9 Avenue Charles
Andr eacute;, F-69561 Saint Genis Laval Cedex,
Identifiers:URL:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bi... [ID No:1]
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