Bibcode
Laine, J.; Laurikainen, E.; Salo, H.; Comerón, S.; Buta, R. J.; Zaritsky, D.; Athanassoula, E.; Bosma, A.; Muñoz-Mateos, J.-C.; Gadotti, D. A.; Hinz, J. L.; Erroz-Ferrer, S.; Gil de Paz, A.; Kim, T.; Menéndez-Delmestre, K.; Mizusawa, T.; Regan, M. W.; Seibert, M.; Sheth, K.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 441, Issue 3, p.1992-2012
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7
2014
Citations
60
Refereed citations
55
Description
We study the surface brightness profiles of disc galaxies in the 3.6
μm images from the Spitzer Survey of Stellar Structure in Galaxies
(S4G) and Ks-band images from the Near-Infrared
S0-Sa galaxy Survey (NIRS0S). We particularly connect properties of
single exponential (type I), downbending double exponential (type II),
and upbending double exponential (type III) disc profile types, to
structural components of galaxies by using detailed morphological
classifications, and size measurements of rings and lenses. We also
study how the local environment of the galaxies affects the profile
types by calculating parameters describing the environmental density and
the tidal interaction strength. We find that in majority of type II
profiles the break radius is connected with structural components such
as rings, lenses, and spirals. The exponential disc sections of all
three profile types, when considered separately, follow the disc scaling
relations. However, the outer discs of type II, and the inner discs of
type III, are similar in scalelength to the single exponential discs.
Although the different profile types have similar mean environmental
parameters, the scalelengths of the type III profiles show a positive
correlation with the tidal interaction strength.
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