11 papers
One Year and One Night to 1% in : Efficient Spectroscopic Strategy for Dark Siren Cosmology
Yixuan Dang, Ariel J. Amsellem, Ignacio Magaña Hernandez +2
Gravitational-wave events from compact binary coalescences (CBCs) can be used as standard sirens: they encode the luminosity distance to their sources, which yields a measurement o…
Electromagnetic Follow-up of the Sub-Solar Mass Gravitational Wave Candidate S251112cm: Kilonova Constraints and a Coincident IIb Supernova
Xander J. Hall, Tomas Ahumada, Julius Gassert +25
On November 12th, 2025 the LIGO--Virgo--KAGRA (LVK) collaboration reported gravitational waves (GWs) from a compact object merger candidate (S251112cm) with at least one sub-solar…
Wide Jets or Low Rates: Reconciling Short GRB and Gravitational-Wave Neutron Star Merger Rates
Keerthi Kunnumkai, Antonella Palmese, Brendan O'Connor +2
Gravitational wave (GW) and short Gamma Ray Burst (sGRB) observations provide us with complementary views of compact object mergers. The paucity of binary neutron star merger (BNS)…
Data-Driven Trends and Subpopulations in the Gravitational Wave Binary Black Hole Merger Population with UMAP
A. J. Amsellem, I. Magaña Hernandez, A. Palmese +1
The rapidly expanding Gravitational-Wave Transient Catalog (GWTC) necessitates the development of model-independent techniques to uncover trends and subpopulations within the binar…
Lucky Strikes: On the Origins of GW190814 Through Isolated Binary Evolution
Ignacio Magaña Hernandez, Katelyn Breivik
The asymmetric nature of GW190814, particularly its mass ratio (), has made its astrophysical origin elusive. We explore isolated binary evolution as a potential ex…
AT2025ulz and S250818k: Deep X-ray and radio limits on off-axis afterglow emission and prospects for future discovery
Brendan O'Connor, Roberto Ricci, Eleonora Troja +15
The first joint electromagentic (EM) and gravitational wave (GW) detection, known as GW170817, marked a critical juncture in our collective understanding of compact object mergers.…