860 citations · 16.1k across the 154 of their papers we have counts for
14 papers · 1 filter
Close Pulsar Pairs See Dark Matter Substructure through the Gravitational-Wave Background
Abhiram Cherukupalli, Vincent S. H. Lee, Kim V. Berghaus +1
Pulsar timing arrays detect signals from dark matter substructure, but a nanohertz gravitational-wave background (GWB) severely degrades their sensitivity. We show that timing puls…
Pulsar Timing Sensitivity to Dark Matter Substructure in the Presence of a Stochastic Gravitational-Wave Background
Abhiram Cherukupalli, Vincent S. H. Lee, Kim Berghaus +1
Pulsar timing arrays (PTAs) can detect dark matter (DM) substructure through the small shifts a transiting DM subhalo imprints on pulse arrival times. Recently found evidence for a…
Macroscopic Dark Matter Detection with Gravitational Wave Experiments
Yufeng Du, Vincent S. H. Lee, Yikun Wang +1
We study signatures of macroscopic dark matter (DM) in current and future gravitational wave (GW) experiments. Transiting DM with a mass of kg that saturates the…
Searching For Gravitational Waves From Cosmological Phase Transitions With The NANOGrav 12.5-year dataset
Zaven Arzoumanian, Paul T. Baker, Harsha Blumer +62
We search for a first-order phase transition gravitational wave signal in 45 pulsars from the NANOGrav 12.5 year dataset. We find that the data can be modeled in terms of a strong…
Bayesian Forecasts for Dark Matter Substructure Searches with Mock Pulsar Timing Data
Vincent S. H. Lee, Stephen R. Taylor, Tanner Trickle +1
Dark matter substructure, such as primordial black holes (PBHs) and axion miniclusters, can induce phase shifts in pulsar timing arrays (PTAs) measurements due to gravitational eff…
SMBH Seeds from Dissipative Dark Matter
Huangyu Xiao, Xuejian Shen, Philip F. Hopkins +1
The existence of supermassive black holes (SMBHs) with masses greater than at high redshift () is difficult to accommodate in standard astrophysi…
Probing Small-Scale Power Spectra with Pulsar Timing Arrays
Vincent S. H. Lee, Andrea Mitridate, Tanner Trickle +1
Models of Dark Matter (DM) can leave unique imprints on the Universe's small scale structure by boosting density perturbations on small scales. We study the capability of Pulsar Ti…
Observability of Dark Matter Substructure with Pulsar Timing Correlations
Harikrishnan Ramani, Tanner Trickle, Kathryn M. Zurek
Dark matter substructure on small scales is currently weakly constrained, and its study may shed light on the nature of the dark matter. In this work we study the gravitational eff…
Neutrino physics with the PTOLEMY project: active neutrino properties and the light sterile case
PTOLEMY collaboration, M. G. Betti, M. Biasotti +54
The PTOLEMY project aims to develop a scalable design for a Cosmic Neutrino Background (CNB) detector, the first of its kind and the only one conceived that can look directly at th…
Pulsar Timing Probes of Primordial Black Holes and Subhalos
Jeff A. Dror, Harikrishnan Ramani, Tanner Trickle +1
Pulsars act as accurate clocks, sensitive to gravitational redshift and acceleration induced by transiting clumps of matter. We study the sensitivity of pulsar timing arrays (PTAs)…
Asymmetric Dark Stars and Neutron Star Stability
Moira I. Gresham, Kathryn M. Zurek
We consider gravitationally bound states of asymmetric dark matter (ADM stars), and the impact of ADM capture on the stability of neutron stars. We derive and interpret the equatio…
The Trispectrum in the Effective Field Theory of Large Scale Structure
Daniele Bertolini, Katelin Schutz, Mikhail P. Solon +1
We compute the connected four point correlation function (the trispectrum in Fourier space) of cosmological density perturbations at one-loop order in Standard Perturbation Theory…
Non-Gaussian Covariance of the Matter Power Spectrum in the Effective Field Theory of Large Scale Structure
Daniele Bertolini, Katelin Schutz, Mikhail P. Solon +2
We compute the non-Gaussian contribution to the covariance of the matter power spectrum at one-loop order in Standard Perturbation Theory (SPT), and using the framework of the effe…
Prospects for Detecting Dark Matter Halo Substructure with Pulsar Timing
Shant Baghram, Niayesh Afshordi, Kathryn M. Zurek
One of the open questions of modern cosmology is the nature and properties of the Dark Matter halo and its substructures. In this work we study the gravitational effect of dark mat…