A Milky Way-like barred spiral galaxy at a redshift of 3

L Costantin, PG Pérez-González, Y Guo, C Buttitta… - Nature, 2023‏ - nature.com
The majority of massive disk galaxies in the local Universe show a stellar barred structure in
their central regions, including our Milky Way,. Bars are supposed to develop in dynamically …

Redshifting galaxies from DESI to JWST CEERS: Correction of biases and uncertainties in quantifying morphology

SY Yu, C Cheng, Y Pan, F Sun, YA Li - Astronomy & Astrophysics, 2023‏ - aanda.org
Observations of high-redshift galaxies with unprecedented detail have now been rendered
possible with the James Webb Space Telescope (JWST). However, accurately quantifying …

Detecting a disc bending wave in a barred-spiral galaxy at redshift 4.4

T Tsukui, E Wisnioski, J Bland-Hawthorn… - Monthly Notices of …, 2024‏ - academic.oup.com
The recent discovery of barred spiral galaxies in the early Universe (z> 2) poses questions
of how these structures form and how they influence galaxy evolution in the early Universe …

The profiles of bars in spiral galaxies

P Erwin, VP Debattista… - Monthly Notices of the …, 2023‏ - academic.oup.com
We present an analysis of major-axis surface-brightness profiles of bars in a volume-limited
sample of 182 barred spiral galaxies, using Spitzer 3.6 m images. Unlike most previous …

The JWST view of the barred galaxy population in the SMACS0723 galaxy cluster

J Méndez-Abreu, L Costantin, S Kruk - Astronomy & Astrophysics, 2023‏ - aanda.org
Context. The cosmic evolution of the barred galaxy population provides key information
about the secular evolution of galaxies and the settling of rotationally dominated discs. Aims …

Bars and boxy/peanut bulges in thin and thick discs-II. Can bars form in hot thick discs?

S Ghosh, F Fragkoudi, P Di Matteo, K Saha - Astronomy & Astrophysics, 2023‏ - aanda.org
The Milky Way and a majority of external galaxies possess a thick disc. However, the
dynamical role of the (geometrically) thick disc in the bar formation and evolution is not fully …

Spatially resolved dust properties and quasar-galaxy decomposition of a hyper-luminous infrared galaxy at z = 4.4

T Tsukui, E Wisnioski, MR Krumholz… - Monthly Notices of the …, 2023‏ - academic.oup.com
We report spatially resolved dust properties of the quasar host galaxy BRI1335− 0417 at
redshift z= 4.4 constrained by the Atacama Large Millimetre/submillimetre Array …

A JWST investigation into the bar fraction at redshifts 1 ≤ z ≤ 3

ZA Le Conte, DA Gadotti, L Ferreira… - Monthly Notices of …, 2024‏ - academic.oup.com
The presence of a stellar bar in a disc galaxy indicates that the galaxy hosts in its main part a
dynamically settled disc and that bar-driven processes are taking place in sha** its …

Looking for a needle in a haystack: Measuring the length of a stellar bar

S Ghosh, P Di Matteo - Astronomy & Astrophysics, 2024‏ - aanda.org
One of the challenges related to stellar bars is to accurately determine the length of the bar
in a disc galaxy. In the literature, a wide variety of methods have been employed to measure …

Disc galaxies are still settling-Discovery of the smallest nuclear discs and their young stellar bars

C de Sá-Freitas, DA Gadotti, F Fragkoudi… - Astronomy & …, 2023‏ - aanda.org
When galactic discs settle and become massive enough, they are able to form stellar bars.
These non-axisymmetric structures induce shocks in the gas, causing it to flow to the centre …