6 papers
Formation timescales for stellar bars in diverse galactic discs
Matthew Frosst, Danail Obreschkow, Aaron Ludlow
We study the formation of stellar bars using 145 simulations of disc galaxies embedded in live and static dark matter haloes. We use the exponential bar growth timescale, $Ï_{\rm…
The Tremaine-Weinberg method at high redshifts
Mahmood Roshan, Asiyeh Habibi, J. Alfonso L. Aguerri +11
This paper examines the reliability of the Tremaine-Weinberg (TW) method in measuring the pattern speed of barred galaxies at high redshifts. Measuring pattern speeds at high redsh…
Origins and lifetimes of secular and tidal bars in simulated disc galaxies
Matthew Frosst, Danail Obreschkow, Aaron Ludlow +1
We investigate the formation of stellar bars in 307 Milky Way-mass disc galaxies in the TNG50 cosmological simulation. Most bars form rapidly in dynamically cold discs shortly afte…
Supermassive black hole feedback quenches disc galaxies and suppresses bar formation in TNG50
Matthew Frosst, Danail Obreschkow, Aaron Ludlow +2
We use the cosmological magneto-hydrodynamical simulation TNG50 to study the relationship between black hole feedback, the presence of stellar bars, and star formation quenching in…
The active role of co-evolving haloes in stellar bar formation
Matthew Frosst, Danail Obreschkow, Aaron D. Ludlow
We use idealised N-body simulations of equilibrium discs in live and static haloes to study how dark matter co-evolution impacts the assembly of stellar particles into a bar and th…
The Nearly Universal Disk Galaxy Rotation Curve
Raj Patel, Nikhil Arora, Stéphane Courteau +3
The Universal Rotation Curve (URC) of disk galaxies was originally proposed to predict the shape and amplitude of any rotation curve (RC) based solely on photometric data. Here, th…