@Article{OMillPrCaCaCyLiLa:2015:StDySu,
author = "O'Mill, Ana Laura and Proust, Dominique and Capelato, Hugo Vicente
and Castejon, Mirian and Cypriano, Eduardo S. and Lima Neto,
Gast{\~a}o B. and Laerte Junior, Sodr{\'e}",
affiliation = "{Universidade de S{\~a}o Paulo (USP)} and {Observatoire de
Paris-Meudon} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Universidade de S{\~a}o Paulo (USP)} and
{Universidade de S{\~a}o Paulo (USP)} and {Universidade de
S{\~a}o Paulo (USP)} and {Universidade de S{\~a}o Paulo (USP)}",
title = "Structure and dynamics of the supercluster of galaxies
SC0028-0005",
journal = "Monthly Notices of the Royal Astronomical Society",
year = "2015",
volume = "453",
number = "1",
pages = "868--878",
month = "July",
keywords = "Cosmology: theory, Galaxies: clusters: general, Galaxies:
kinematics and dynamics.",
abstract = "According to the standard cosmological scenario, superclusters are
objects that have just passed the turn-around point and are
collapsing. The dynamics of very few superclusters have been
analysed up to now. In this paper, we study the supercluster
SC0028-0005, at redshift 0.22, identify the most prominent groups
and/or clusters that make up the supercluster, and investigate the
dynamic state of this structure. For the membership
identification, we have used photometric and spectroscopic data
from Sloan Digital Sky Survey Data Release 10, finding sixmain
structures in a flat spatial distribution. We have also used a
deep multiband observation with MegaCam/Canada-France-Hawaii
Telescope to estimate de mass distribution through the
weak-lensing effect. For the dynamical analysis, we have
determined the relative distances along the line of sight within
the supercluster using the Fundamental Plane of early-type
galaxies. Finally, we have computed the peculiar velocities of
each of the main structures. The 3D distribution suggests that
SC0028-005 is indeed a collapsing supercluster, supporting the
formation scenario of these structures. Using the spherical
collapse model, we estimate that the mass within r = 10 Mpc should
lie between 4 and 16 × 1015M \⊙. The farthest detected
members of the supercluster suggest that within ~60 Mpc the
density contrast is \δ ~ 3 with respect to the critical
density at z = 0.22, implying a total mass of ~4.6-16 × 1017M
\⊙, most of which in the form of low-mass galaxy groups or
smaller substructures.",
doi = "10.1093/mnras/stv1650",
url = "http://dx.doi.org/10.1093/mnras/stv1650",
issn = "0035-8711 and 1365-2966",
language = "en",
targetfile = "2015_omill.pdf",
urlaccessdate = "15 jun. 2024"
}