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Fly-by galaxy encounters with multiple black holes produce star-forming linear wakes
Nianyi Chen, Patrick LaChance, Yueying Ni +4
We look for simulated star-forming linear wakes such as the one recently discovered by van Dokkum et al. (2023) in the cosmological hydrodynamical simulation ASTRID. Amongst the ru…
An Exploration of AGN and Stellar Feedback Effects in the Intergalactic Medium via the Low Redshift Lyman- Forest
Megan Taylor Tillman, Blakesley Burkhart, Stephanie Tonnesen +9
We explore the role of galactic feedback on the low redshift Lyman- (Ly)~forest () statistics and its potential to alter the thermal state of the intergalactic…
Machine Learning Uncovers the Universe's Hidden Gems: A Comprehensive Catalogue of CIV Absorption Lines in SDSS DR12
Reza Monadi, Ming-Feng Ho, Kathy L. Cooksey +1
We assemble the largest CIV absorption line catalogue to date, leveraging machine learning, specifically Gaussian processes, to remove the need for visual inspection for detecting…
Triple and Quadruple Black Holes in the ASTRID Simulation at
Calvin Hoffman, Nianyi Chen, Tiziana Di Matteo +4
We use the ASTRID cosmological hydrodynamic simulation to investigate the properties and evolution of triple and quadruple Massive Black Hole (MBH) systems at . Only a han…
High-redshift supermassive black hole mergers in simulations with dynamical friction modelling
Colin DeGraf, Nianyi Chen, Yueying Ni +4
In the near future, projects like LISA and Pulsar Timing Arrays are expected to detect gravitational waves from mergers between supermassive black holes, and it is crucial to preci…
A vast population of wandering and merging IMBHs at cosmic noon
Tiziana Di Matteo, Yueying Ni, Nianyi Chen +5
Massive black holes in the centers of galaxies today must have grown by several orders of magnitude from seed black holes formed at early times. Detecting a population of intermedi…