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The Contribution Of Outer HI Disks To The Merging Binary Black Hole Population
Sukanya Chakrabarti, Philip Chang, Richard O'Shaughnessy +5
We investigate the contribution of outer HI disks to the observable population of merging black hole binaries. Like dwarf galaxies, the outer HI disks of spirals have low star form…
A unified model for age-velocity dispersion relations in Local Group galaxies: Disentangling ISM turbulence and latent dynamical heating
Ryan Leaman, J. Trevor Mendel, Emily Wisnioski +9
We analyze age-velocity dispersion relations (AVRs) from kinematics of individual stars in eight Local Group galaxies ranging in mass from Carina () to M31 ($M_{…
Going, going, gone dark: Quantifying the scatter in the faintest dwarf galaxies
Ferah Munshi, Alyson M. Brooks, Elaad Applebaum +3
We predict the stellar mass-halo mass (SMHM) relationship for dwarf galaxies and their satellites residing in halos down to M 10 M with 10 M$_{\odot} <…
Beta Dips in the Gaia Era: Simulation Predictions of the Galactic Velocity Anisotropy Parameter for Stellar Halos
Sarah R. Loebman, Monica Valluri, Kohei Hattori +7
The velocity anisotropy parameter, beta, is a measure of the kinematic state of orbits in the stellar halo which holds promise for constraining the merger history of the Milky Way…
How to Reconcile the Observed Velocity Function of Galaxies with Theory
Alyson M. Brooks, Emmanouil Papastergis, Charlotte R. Christensen +4
Within a Lambda Cold Dark Matter (LCDM) scenario, we use high resolution cosmological simulations spanning over four orders of magnitude in galaxy mass to understand the deficit of…
A rumble in the dark: signatures of self-interacting dark matter in Super-Massive Black Hole dynamics and galaxy density profiles
Arianna Di Cintio, Michael Tremmel, Fabio Governato +5
We explore for the first time the effect of self-interacting dark matter (SIDM) on the dark matter (DM) and baryonic distribution in massive galaxies formed in hydrodynamical cosmo…