The 2D metallicity distribution and mixing scales of nearby galaxies

TG Williams, K Kreckel, F Belfiore… - Monthly Notices of …, 2022 - academic.oup.com
Understanding the spatial distribution of metals within galaxies allows us to study the
processes of chemical enrichment and mixing in the interstellar medium. In this work, we …

3D gas-phase elemental abundances across the formation histories of Milky Way-mass galaxies in the FIRE simulations: initial conditions for chemical tagging

MA Bellardini, A Wetzel, SR Loebman… - Monthly Notices of …, 2021 - academic.oup.com
We use FIRE-2 simulations to examine 3D variations of gas-phase elemental abundances of
[O/H],[Fe/H], and [N/H] in 11 MW and M31-mass galaxies across their formation histories at …

Azimuthal variations of gas-phase oxygen abundance in NGC 2997

IT Ho, SE Meidt, RP Kudritzki, BA Groves… - Astronomy & …, 2018 - aanda.org
The azimuthal variation of the H II region oxygen abundance in spiral galaxies is a key
observable for understanding how quickly oxygen produced by massive stars can be …

Spiral arms are metal freeways: azimuthal gas-phase metallicity variations in flocculent discs in the FIRE-2 cosmological zoom-in simulations

ME Orr, B Burkhart, A Wetzel, PF Hopkins… - Monthly Notices of …, 2023 - academic.oup.com
We examine the azimuthal variations in gas-phase metallicity profiles in simulated Milky
Way-mass disc galaxies from the Feedback in Realistic Environments (FIRE-2) cosmological …

Arm–interarm gas abundance variations explored with MUSE: the role of spiral structure in the chemical enrichment of galaxies

L Sánchez-Menguiano, SF Sánchez… - Monthly Notices of …, 2020 - academic.oup.com
Spiral arms are the most characteristic features of disc galaxies, easily distinguishable due
to their association with ongoing star formation. However, the role of spiral structure in the …

ISM metallicity variations across spiral arms in disk galaxies-The impact of local enrichment and gas migration in the presence of a radial metallicity gradient

S Khoperskov, E Sivkova, A Saburova… - Astronomy & …, 2023 - aanda.org
Chemical abundance variations in the interstellar medium provide important information
about the galactic evolution, star-formation, and enrichment histories. Recent observations …

Characterizing the radial oxygen abundance distribution in disk galaxies

IA Zinchenko, A Just, LS Pilyugin… - Astronomy & …, 2019 - aanda.org
Context. The relation between the radial oxygen abundance distribution (gradient) and other
parameters of a galaxy such as mass, Hubble type, and a bar strength, remains unclear …

Azimuthal propagation of star formation in nearby spiral galaxies: NGC 628, NGC 3726, and NGC 6946

F Sakhibov, AS Gusev… - Monthly Notices of the …, 2021 - academic.oup.com
Star formation induced by a spiral shock wave, which in turn is generated by a spiral density
wave, produces an azimuthal age gradient across the spiral arm, which has opposite signs …

MaNGA galaxies with off-centered spots of enhanced gas velocity dispersion

LS Pilyugin, B Cedrés, IA Zinchenko… - Astronomy & …, 2021 - aanda.org
Off-centered spots of the enhanced gas velocity dispersion, σ, are revealed in some galaxies
from the Mapping Nearby Galaxies at Apache Point Observatory survey (MaNGA). Aiming to …

A forward-modelling approach to overcome point spread function smearing and fit flexible models to the chemical structure of galaxies

B Metha, S Birrer, T Treu, M Trenti… - RAS Techniques and …, 2024 - academic.oup.com
Historically, metallicity profiles of galaxies have been modelled using a radially symmetric,
two-parameter linear model, which reveals that most galaxies are more metal-rich in their …