4 papers
The nature of the Norma arm as a bar-driven star-forming shock front
Hillary Davis, Joss Bland-Hawthorn, Thor Tepper-Garcia +2
The Milky Way is commonly depicted as having four major spiral arms, including the Norma-Outer arm, and a central stellar bar whose properties remain debated. Masers associated wit…
Enhanced rates of stellar radial migration in gas-rich discs at high redshift
HanYuan Zhang, Thor Tepper-García, Vasily Belokurov +6
Radial migration and dynamical heating redistribute stars within galactic discs and thereby modify the chemo-kinematic structure of their host galaxies. Usually, these secular proc…
findAbar: how astronomers may perceive the bar in galaxies differently
Elizabeth J. Iles, Joss Bland-Hawthorn, Courtney Crawford +18
Bars are ubiquitous morphological features in the observed distribution of galaxies. There are similarly many methods for classifying these features and, without a strict theoretic…
HI terminal velocity curves -- Lessons learned from N-body/hydrodynamic `surrogate' models of the Milky Way
Hillary Davis, Thor Tepper-Garcia, Naomi McClure-Griffiths +2
The development of an N-body/hydrodynamic `surrogate' model of the Milky Way (MW) - a model that resembles the MW in several key aspects after many Gyrs of evolution - would be ext…