334 citations · 4.3k across the 88 of their papers we have counts for
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Formation of rotating supergiants via stellar mergers in dense clusters: Implications for black hole natal spins
Ishaan Satish, Kyle Kremer, Fulya Kıroğlu +2
We investigate how massive stellar mergers in young star clusters imprint on black hole spin distributions and the broader implications for gravitational wave sources. The central…
Formation of Black Hole-White Dwarf X-ray Binaries in Globular Clusters
William Y. W. Yang, Kyle Kremer, James C. Lombardi +1
Globular clusters are host to significant populations of dynamically-active stellar remnants that connect to a variety of astrophysical sources. Using simulations performed with th…
Machine Learning Methods for Stellar Collisions. I. Predicting Outcomes of SPH Simulations
Elena González Prieto, James C. Lombardi, Sanaea C. Rose +7
Stellar collisions can occur frequently in dense cluster environments, and play a crucial role in producing exotic phenomena from blue stragglers in globular clusters to high-energ…
Beyond Hierarchical Mergers: Accretion-Driven Origins of Massive, Highly Spinning Black Holes in Dense Star Clusters
Fulya Kıroğlu, Kyle Kremer, Frederic A. Rasio
GW231123, the most massive binary black hole (BBH) merger detected by LIGO/Virgo/KAGRA, highlights the need to understand the origins of massive, high-spin stellar black holes (BHs…
Mass Distribution of Binary Black Hole Mergers from Young and Old Dense Star Clusters
Claire S. Ye, Maya Fishbach, Kyle Kremer +1
Dense star clusters are thought to contribute significantly to the merger rates of stellar-mass binary black holes (BBHs) detected by the LIGO-Virgo-KAGRA collaboration. We combine…
Spin-Orbit Alignment in Merging Binary Black Holes Following Collisions with Massive Stars
Fulya Kıroğlu, James C. Lombardi, Kyle Kremer +2
Merging binary black holes (BBHs) formed dynamically in dense star clusters are expected to have uncorrelated spin--orbit orientations since they are assembled through many random…
Black Hole Accretion and Spin-up Through Stellar Collisions in Dense Star Clusters
Fulya Kıroğlu, Kyle Kremer, Sylvia Biscoveanu +2
Dynamical interactions in dense star clusters could significantly influence the properties of black holes, leaving imprints on their gravitational-wave signatures. While previous s…
Lower-mass-gap Black Holes in Dense Star Clusters
Claire S. Ye, Kyle Kremer, Scott M. Ransom +1
The existence of compact stellar remnants in the mass range has long been debated. This so-called lower mass gap was initially suggested by the lack of low-mass X-…
Single Millisecond Pulsars from Dynamical Interaction Processes in Dense Star Clusters
Claire S. Ye, Kyle Kremer, Scott M. Ransom +1
Globular clusters (GCs) are particularly efficient at forming millisecond pulsars. Among these pulsars, about half lack a companion star, a significantly higher fraction than in th…
Connecting the Young Pulsars in Milky Way Globular Clusters with White Dwarf Mergers and the M81 Fast Radio Burst
Kyle Kremer, Jim Fuller, Anthony L. Piro +1
The detections of four apparently young radio pulsars in the Milky Way globular clusters are difficult to reconcile with standard neutron star formation scenarios associated with m…
Wind-Reprocessed Transients from Stellar-mass Black Hole Tidal Disruption Events
Kyle Kremer, Brenna Mockler, Anthony L. Piro +1
Tidal disruptions of stars by stellar-mass black holes are expected to occur frequently in dense star clusters. Building upon previous studies that performed hydrodynamic simulatio…
Partial Tidal Disruption of Main-Sequence Stars by Intermediate-Mass Black Holes
Fulya Kıroğlu, James C. Lombardi, Kyle Kremer +3
We study close encounters of a middle-age main-sequence star (modeled using MESA) with massive black holes through hydrodynamic simulations, and explore in particula…
Prospects for Detecting Fast Radio Bursts in Globular Clusters of Nearby Galaxies
Kyle Kremer, Dongzi Li, Wenbin Lu +2
The recent detection of a repeating fast radio burst (FRB) in an old globular cluster in M81 challenges traditional FRB formation mechanisms based on magnetic activity in young neu…
Intermediate-mass Black Holes on the Run from Young Star Clusters
Elena González Prieto, Kyle Kremer, Giacomo Fragione +4
The existence of black holes (BHs) with masses in the range between stellar remnants and supermassive BHs has only recently become unambiguously established. GW190521, a gravitatio…
Radio detection of an elusive millisecond pulsar in the Globular Cluster NGC 6397
Lei Zhang, Alessandro Ridolfi, Harsha Blumer +32
We report the discovery of a new 5.78 ms-period millisecond pulsar (MSP), PSR J1740-5340B (NGC 6397B), in an eclipsing binary system discovered with the Parkes radio telescope (now…
Probing the efficiency of tidal synchronization in outspiralling double white dwarf binaries with LISA
Sylvia Biscoveanu, Kyle Kremer, Eric Thrane
Compact-object binaries including a white dwarf component are unique among gravitational-wave sources because their evolution is governed not just by general relativity and tides,…
Formation of Low-mass Black Holes and Single Millisecond Pulsars in Globular Clusters
Kyle Kremer, Claire S. Ye, Fulya Kıroğlu +3
Close encounters between neutron stars and main-sequence stars occur in globular clusters and may lead to various outcomes. Here we study encounters resulting in tidal disruption o…
Hydrodynamics of Collisions and Close Encounters between Stellar Black Holes and Main-sequence Stars
Kyle Kremer, James C. Lombardi, Wenbin Lu +2
Recent analyses have shown that close encounters between stars and stellar black holes occur frequently in dense star clusters. Depending upon the distance at closest approach, the…
Compact Object Modeling in the Globular Cluster 47 Tucanae
Claire S. Ye, Kyle Kremer, Carl L. Rodriguez +5
The globular cluster 47~Tucanae (47~Tuc) is one of the most massive star clusters in the Milky Way and is exceptionally rich in exotic stellar populations. For several decades it h…
Dynamical Formation Channels for Fast Radio Bursts in Globular Clusters
Kyle Kremer, Anthony L. Piro, Dongzi Li
The repeating fast radio burst (FRB) localized to a globular cluster in M81 challenges our understanding of FRB models. In this Letter, we explore dynamical formation scenarios for…
Implications of Eccentric Observations on Binary Black Hole Formation Channels
Michael Zevin, Isobel M. Romero-Shaw, Kyle Kremer +2
Orbital eccentricity is one of the most robust discriminators for distinguishing between dynamical and isolated formation scenarios of binary black hole mergers using gravitational…
The Observed Rate of Binary Black Hole Mergers can be Entirely Explained by Globular Clusters
Carl L. Rodriguez, Kyle Kremer, Sourav Chatterjee +5
Since the first signal in 2015, the gravitational-wave detections of merging binary black holes (BBHs) by the LIGO and Virgo collaborations (LVC) have completely transformed our un…
Intermediate-mass Black Holes from High Massive-star Binary Fractions in Young Star Clusters
Elena González, Kyle Kremer, Sourav Chatterjee +5
Black holes formed in dense star clusters, where dynamical interactions are frequent, may have fundamentally different properties than those formed through isolated stellar evoluti…
Fast Optical Transients from Stellar-Mass Black Hole Tidal Disruption Events in Young Star Clusters
Kyle Kremer, Wenbin Lu, Anthony L. Piro +3
Observational evidence suggests that the majority of stars may have been born in stellar clusters or associations. Within these dense environments, dynamical interactions lead to h…