@Article{Sá-FreitasGCMBSBDM:2022:CoTrFu,
author = "S{\'a}-Freitas, Camila de and Gon{\c{c}}alves, T. S. and
Carvalho, R. R. de and Men{\'e}ndez-Delmestre, K. and Barchi,
Paulo Henrique and Sampaio, V. M. and Basu-Zych, A. and Darvish,
B. and Martin, C.",
affiliation = "{Universidade Federal do Rio de Janeiro (UFRJ)} and {Universidade
Federal do Rio de Janeiro (UFRJ)} and {Universidade Cruzeiro do
Sul} and {Universidade Federal do Rio de Janeiro (UFRJ)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Cruzeiro do Sul} and {NASA Goddard Space Flight
Center} and {California Institute of Technology} and {California
Institute of Technology}",
title = "Quenching, bursting, and galaxy shapes: Colour transformation as a
function of morphology",
journal = "Monthly Notices of the Royal Astronomical Society",
year = "2022",
volume = "509",
number = "3",
pages = "3889--3903",
month = "Jan.",
keywords = "cD, galaxies: elliptical and lenticular, galaxies: evolution,
galaxies: spiral, galaxies: star formation.",
abstract = "Different mechanisms for quenching star formation in galaxies are
commonly invoked in the literature, but the relative impact of
each one at different cosmic epochs is still unknown. In
particular, the relation between these processes and morphological
transformation remains poorly understood. In this work, we measure
the effectiveness of changes in star formation rates by analysing
a new parameter, the Star Formation Acceleration (SFA), as a
function of galaxy morphology. This methodology is capable of
identifying both bursting and quenching episodes that occurred in
the preceding 300 Myr. We use morphological classification
catalogues based on Deep Learning techniques. Our final sample has
\∼14 200 spirals and \∼2500 ellipticals. We find
that elliptical galaxies in the transition region have median
shorter quenching time-scales (\τ < 1 Gyr) than spirals
(\τ \≥ 1 Gyr). This result conforms to the scenario
in which major mergers and other violent processes play a
fundamental role in galaxy evolution for most ellipticals, not
only quenching star formation more rapidly but also playing a role
in morphological transformation. We also find that
\∼two-thirds of galaxies bursting in the green valley in
our sample are massive spirals (\$M_star ge 10^{11.0},
mathrm{M}_odot\$) with signs of disturbance. This is in
accordance with the scenario where low-mass galaxies are losing
their gas in an interaction with a massive galaxy: while the
former is quenching, the last is being refueled and going through
a burst, showing signs of recent interaction.",
doi = "10.1093/mnras/stab3230",
url = "http://dx.doi.org/10.1093/mnras/stab3230",
issn = "0035-8711 and 1365-2966",
language = "en",
targetfile = "freitas2022_quenching.pdf",
urlaccessdate = "25 jun. 2024"
}