11 papers
Temperature asymmetry in the Milky Way's hot circumgalactic medium induced by the Magellanic Clouds
Alexandru Oprea, Filippo Fraternali, Else Starkenburg +2
The Milky Way is surrounded by a hot diffuse circumgalactic medium (CGM) with temperatures of millions of degrees. Recent X-ray observations with the eROSITA satellite discovered a…
Galactic seismology: can a disc-crossing impulse explain the large-scale perturbations in the Milky Way's disc?
Pavadol Yamsiri, Joss Bland-Hawthorn, Thor Tepper-Garcia
Prior to its infall, the Sagittarius (Sgr) dwarf galaxy was a major satellite with a mass of M. For the past , it has been heav…
Towards Understanding the Milky Way's Matter Field and Dynamical Accretion History based on AI-GS3 Hunter
Hai-Feng Wang, Guan-Yu Wang, Giovanni Carraro +5
We present GS3 Hunter (Galactic-Seismology Substructures and Streams Hunter), a novel deep-learning method that combines Siamese Neural Networks and K-means clustering to identify…
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…
Turbulent gas-rich discs at high redshift: origin of thick stellar discs through 3D 'baryon sloshing'
Joss Bland-Hawthorn, Thor Tepper-Garcia, Oscar Agertz +8
In response to recent observations from JWST and ALMA, we explore a new class of dynamically self-consistent models using our AGAMA/Ramses hydrodynamic N-body framework (Nexus) tha…
Galactic seismology: can the Gaia 'phase spiral' co-exist with a clumpy, turbulent interstellar medium?
Thor Tepper-GarcÃa, Joss Bland-Hawthorn, Timothy R. Bedding +2
The Gaia satellite revealed a remarkable spiral pattern ('phase spiral', PS) in the z-Vz phase-plane throughout the solar neighbourhood, where z and Vz are the displacement and vel…