41 citations · 205 across the 12 of their papers we have counts for
12 papers
The ejection and detectability of high- and hyper-velocity stars by compact object binaries in globular clusters
Fraser A. Evans, Steffani M. Grondin, Claire S. Ye +3
The dense cores of Milky Way globular clusters (GCs) play host to a variety of dynamical encounters between stellar objects, which can accelerate stars to velocities high enough to…
The impact of the Galactic bar and the Large Magellanic Cloud on hypervelocity star trajectories
Isabella Armstrong, Fraser A. Evans, Jo Bovy
Hypervelocity stars (HVSs) ejected from the Galactic Center (GC) at speeds faster than the Galactic escape velocity are useful tools to provide insight into the Milky Way's dark ma…
Improved constraints on Galactic Centre ejection of hypervelocity stars based on novel search method
Sill Verberne, Elena Maria Rossi, Sergey E. Koposov +6
Hypervelocity stars (HVSs) are stars which have been ejected from the Galactic Centre (GC) at velocities of up to a few thousand km/s. They are tracers of the Galactic potential an…
Constraints on the Galactic Centre environment from \textit{Gaia} hypervelocity stars III: Insights on a possible companion to Sgr A*
Fraser A. Evans, Alexander Rasskazov, Amber Remmelzwaal +4
We consider a scenario in which Sgr A* is in a massive black hole binary (MBHB) with an as-of-yet undetected supermassive or intermediate-mass black hole companion. Dynamical encou…
The cold gas and dust properties of red star-forming galaxies
Ryan Chown, Laura C. Parker, Christine D. Wilson +9
We study the cold gas and dust properties for a sample of red star forming galaxies called "red misfits." We collect single-dish CO observations and HI observations from representa…
Gaia DR3 in 6D: The search for fast hypervelocity stars and constraints on the Galactic Centre environment
Tommaso Marchetti, Fraser A. Evans, Elena Maria Rossi
The third data release (DR3) of the European Space Agency satellite Gaia provides coordinates, parallaxes, proper motions, and radial velocities for a sample of million s…
Constraints on the Galactic Centre environment from Gaia hypervelocity stars II: The evolved population
Fraser A. Evans, Tommaso Marchetti, Elena Maria Rossi
A dynamical encounter between a stellar binary and Sgr A* in the Galactic Centre (GC) can tidally separate the binary and eject one member with a velocity beyond the escape speed o…
Constraints on the Galactic Centre environment from Gaia hypervelocity stars
F. A. Evans, T. Marchetti, E. M. Rossi
Following a dynamical encounter with Sgr A*, binaries in the Galactic Centre (GC) can be tidally separated and one member star ejected as a hyper-velocity star (HVS) with a velocit…
Comparing hypervelocity star populations from the Large Magellanic Cloud and the Milky Way
Fraser A. Evans, Tommaso Marchetti, Elena Maria Rossi +2
We predict and compare the distributions and properties of hyper-velocity stars (HVSs) ejected from the centres of the Milky Way (MW) and the Large Magellanic Cloud (LMC). In our m…
Core-Collapse Supernovae in Binaries as the Origin of Galactic Hyper-Runaway Stars
Fraser A. Evans, Mathieu Renzo, Elena Maria Rossi
Several stars detected moving at velocities near to or exceeding the Galactic escape speed likely originated in the Milky Way disc. We quantitatively explore the `binary supernova…
Red Misfits in the Sloan Digital Sky Survey: Properties of Star-forming Red Galaxies
Fraser A. Evans, Laura C. Parker, Ian D. Roberts
We study Red Misfits, a population of red, star-forming galaxies in the local Universe. We classify galaxies based on inclination-corrected optical colours and specific star format…
Mass segregation trends in SDSS galaxy groups
Ian D. Roberts, Laura C. Parker, Gandhali D. Joshi +1
It has been shown that galaxy properties depend strongly on their host environment. In order to understand the relevant physical processes driving galaxy evolution it is important…