activity
20122026
most citedThe NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background

1.5k citations · 4.7k across the 59 of their papers we have counts for

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14 papers · 1 filter

astro-ph.GA2026

A Gravitational Wave Background from Intermediate Mass Black Holes in AGN Disks

Chiara M. F. Mingarelli

Intermediate mass black holes (IMBHs) formed in active galactic nucleus (AGN) disks are expected to inspiral into their central supermassive black holes (SMBHs), generating a stoch…

astro-ph.GA2026

Implications of the nanoHertz Gravitational-Wave Background for Galactic Feedback and Massive Black Hole Growth

Megan Taylor Tillman, Blakesley Burkhart, Chiara M. F. Mingarelli +5

We investigate how pulsar timing array (PTA) measurements of the nanoHertz gravitational-wave background (GWB) can constrain models for the growth history of supermassive black hol…

astro-ph.GA2025

The Era of Binary Supermassive Black Holes: Coordination of Nanohertz-Frequency Gravitational-Wave Follow-up

Sarah Burke-Spolaor, Tamara Bogdanović, Daniel J. D'Orazio +9

Here we summarize discussions and conclusions from the conference ``The Era of Binary Supermassive Black Holes: Coordination of Nanohertz-Frequency Gravitational-Wave Follow-up,''…

astro-ph.GA2023

Discovery and Characterization of Galactic-scale Dual Supermassive Black Holes Across Cosmic Time

Yue Shen, J. Andrew Casey-Clyde, Yu-Ching Chen +10

The hierarchical structure formation paradigm predicts the formation of pairs of supermassive black holes in merging galaxies. When both (or one) members of the SMBH pair are unobs…

astro-ph.GA2023★ 14 cited

A Pulsar-Based Map of Galactic Acceleration

Abigail Moran, Chiara M. F. Mingarelli, Ken Van Tilburg +1

Binary pulsars can be used to probe Galactic potential gradients through calculating their line-of-sight accelerations. We present the first data release of direct line-of-sight ac…

astro-ph.GA2023★ 48 cited

UGC 4211: A Confirmed Dual Active Galactic Nucleus in the Local Universe at 230 pc Nuclear Separation

Michael J. Koss, Ezequiel Treister, Darshan Kakkad +23

We present multi-wavelength high-spatial resolution (~0.1'', 70 pc) observations of UGC 4211 at z=0.03474, a late-stage major galaxy merger at the closest nuclear separation yet fo…