432 citations · 1k across the 16 of their papers we have counts for
16 papers
Neutron Star-Main Sequence Collisions Robustly Form Dynamically Stable Thorne-Żytkow Objects
Lauryn E. Williams, Philip Chang, Emily M. Levesque +1
Thorne-Żytkow Objects (TŻOs) are hypothetical hybrid stars with a neutron star at the core of a large, diffuse envelope. (TŻOs) may be formed when a newly formed neutron star that…
The Formation of Dwarf Galaxy Disks
Robel Geda, Akaxia Cruz, Anna C. Wright +5
Dwarf galaxies are dark matter-dominated systems that are sensitive to feedback and display a diversity of baryonic morphologies. This makes them excellent probes for understanding…
The Merger-Driven Formation of Classical Low Surface Brightness Galaxies in Romulus25
Anna C. Wright, Alyson M. Brooks, Michael Tremmel +3
We use the Romulus25 cosmological simulation volume to study a large sample of late-type gas-rich galaxies with low central surface brightnesses known as classical low surface brig…
An Accurate Modeling of Nano-hertz Gravitational Wave Signal from Eccentric Supermassive Binary Black Holes: An Essential Step Toward a Robust Discovery
Mohit Raj Sah, Akash Maurya, Suvodip Mukherjee +7
The stochastic gravitational wave background (SGWB) in the nanohertz (nHz) regime, detectable by pulsar timing arrays (PTAs), provides a promising probe of the cosmic population of…
Imprints of Supermassive Black Hole Evolution on the Spectral and Spatial Anisotropy of Nano-Hertz Stochastic Gravitational-Wave Background
Mohit Raj Sah, Suvodip Mukherjee, Vida Saeedzadeh +3
The formation and evolution of supermassive black holes (SMBHs) remains an open question in the field of modern cosmology. The detection of nanohertz (n-Hz) gravitational waves via…
Dual AGNs: Precursors of Binary Supermassive Black Hole Formation and Mergers
Vida Saeedzadeh, Arif Babul, Suvodip Mukherjee +3
The presence of dual active galactic nuclei (AGN) on scales of a few tens of kpc can be used to study merger-induced accretion on supermassive black holes (SMBHs) and offer insight…
Bursting with Feedback: The Relationship between Feedback Model and Bursty Star Formation Histories in Dwarf Galaxies
Bianca Azartash-Namin, Anna Engelhardt, Ferah Munshi +6
We use high-resolution cosmological simulations to compare the effect of bursty star formation histories on dwarf galaxy structure for two different subgrid supernovae (SNe) feedba…
Environment Matters: Predicted Differences in the Stellar Mass--Halo Mass Relation and History of Star Formation for Dwarf Galaxies
Charlotte R. Christensen, Alyson Brooks, Ferah Munshi +5
We are entering an era in which we will be able to detect and characterize hundreds of dwarf galaxies within the Local Volume. It is already known that a strong dichotomy exists in…
Shining Light on the Hosts of the Nano-Hertz Gravitational Wave Sources: A Theoretical Perspective
Vida Saeedzadeh, Suvodip Mukherjee, Arif Babul +2
The formation of supermassive black holes (SMBHs) in the Universe and its role in the properties of the galaxies is one of the open questions in astrophysics and cosmology. Though,…
The Role of Mass and Environment on Satellite distributions around Milky Way analogs in the Romulus25 simulation
Jordan Van Nest, Ferah Munshi, Charlotte Christensen +3
We study satellite counts and quenched fractions for satellites of Milky Way analogs in Romulus25, a large-volume cosmological hydrodynamic simulation. Depending on the definition…
What's in a name? Quantifying the interplay between the Definition, Orientation, and Shape of Ultra-diffuse Galaxies Using the Romulus Simulations
Jordan D. Van Nest, F. Munshi, A. C. Wright +4
We explore populations of ultra-diffuse galaxies (UDGs) in isolated, satellite, and cluster environments using the Romulus25 and RomulusC simulations, including how the populations…
The Romulus Cosmological Simulations: A Physical Approach to the Formation, Dynamics and Accretion Models of SMBHs
Michael Tremmel, Michael Karcher, Fabio Governato +5
We present a novel implementation of supermassive black hole (SMBH) formation, dynamics, and accretion in the massively parallel tree+SPH code, ChaNGa. This approach improves the m…
The Little Galaxies that Could (Reionize the Universe): Predicting Faint End Slopes & Escape Fractions at z > 4
Lauren Anderson, Fabio Governato, Michael Karcher +2
The sources that reionized the universe are still unknown, but likely candidates are faint but numerous galaxies. In this paper we present results from running a high resolution, u…
The Growth and Enrichment of the Intragroup Gas
Lichen Liang, Fabrice Durier, Arif Babul +5
The thermal and chemical properties of the hot diffuse intragroup medium (IGrM) provide important constraints on the feedback processes associated with massive galaxy formation and…
Making Galaxies in a Cosmological Context: The Need for Early Stellar Feedback
G. Stinson, C. Brook, A. V. Macciò +3
We introduce the Making Galaxies in a Cosmological Context (MaGICC) program of smoothed particle hydrodynamics (SPH) simulations. We describe a parameter study of galaxy formation…
Pre-heating the ICM in high resolution simulations: the effect on the gas entropy
S. Borgani, F. Governato, J. Wadsley +5
We present results from high-resolution Tree+SPH simulations of galaxy clusters and groups, aimed at studying the effect of non-gravitational heating on the entropy of the ICM. We…