@Article{CarvalhoCostMourRibe:2019:MaDePr,
author = "Carvalho, Reinaldo Ramos de and Costa, A. P. and Moura, T. C. and
Ribeiro, A. L. B.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Estadual de Santa Cruz} and {Universidade de
S{\~a}o Paulo (USP)} and {Universidade Estadual de Santa Cruz}",
title = "The mass density profile and star formation history of Gaussian
and non-Gaussian clusters",
journal = "Monthly Notices of the Royal Astronomical Society",
year = "2019",
volume = "487",
number = "1",
pages = "L86--L90",
month = "July",
keywords = "galaxies: clusters: general – galaxies:evolution –
galaxies:formation – galaxies:star formation – galaxies:stellar
content – galaxies: interactions.",
abstract = "This paper is the third of a series in which we investigate the
discrimination between Gaussian (G) and Non-Gaussian (NG)
clusters, based on the velocity distribution of the member
galaxies. We study a sample of 177 groups from the Yang catalog in
the redshift interval of 0.03 <= z <= 0.1 and masses >= 10(14)
M-circle dot. Examining the projected stellar mass density
distributions of G and NG groups, we find strong evidence of a
higher infall rate in the outskirts of NG groups over the G ones.
There is a 61 per cent excess of faint galaxies in NGs when
contrasted with G groups, when integrating from 0.8 to 2.OR/R-200.
The study of the star formation history (SFH) of ellipticals and
spirals in the three main regions of the projected phase space
reveals also that the star formation in faint spirals of NG groups
is significantly different from their counterpart in the G groups.
The assembled mass for faint spirals varies from 59 per cent at
12.7 Gyr to 75 per cent at 8.0 Gyr, while in G systems this
variation is from 82 per cent to 91 per cent. This finding may
also be interpreted as a higher in fall rate of gas-rich systems
in NG groups. This accretion process through the filaments,
disturbing the velocity distribution and modifying not only the
stellar population of the incoming galaxies but also their SFH,
should be seriously considered in modelling galaxy evolution.",
doi = "10.1093/mnrasl/slz084",
url = "http://dx.doi.org/10.1093/mnrasl/slz084",
issn = "0035-8711 and 1365-2966",
language = "en",
targetfile = "carvalho_mass.pdf",
urlaccessdate = "27 abr. 2024"
}