57 citations · 65 across the 14 of their papers we have counts for
16 papers
Flexible Proposal Distributions for Gravitational-Wave Population Inference with Gaussian Mixture Models
Simon M. C. Yeung, Ignacio Magaña Hernandez, Jolien Creighton
Population analyses of gravitational-wave (GW) sources use hierarchical Bayesian inference to constrain astrophysical models while accounting for selection effects. The likelihood…
Normalizing Flow Emulator for Gravitational Wave Detection Probability in the LIGO/Virgo/KAGRA O4 Observing Run
Julius Gassert, Ignacio Magaña Hernandez, Ariel J. Amsellem +2
Efficient and accurate estimation of the detection probability of a gravitational wave event given its source parameters remains a challenging problem because it conventionally req…
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.…
AT2025ulz and S250818k: Investigating early time observations of a subsolar mass gravitational-wave binary neutron star merger candidate
Xander J. Hall, Malte Busmann, Hauke Koehn +32
Over the past LIGO--Virgo--KAGRA (LVK) observing runs, it has become increasingly clear that identifying the next electromagnetic counterparts to gravitational-wave (GW) neutron st…
AT2025ulz and S250818k: Leveraging DESI spectroscopy in the hunt for a kilonova associated with a sub-solar mass gravitational wave candidate
Xander J. Hall, Antonella Palmese, Brendan O'Connor +47
On August 18th, 2025, the LIGO--Virgo--KAGRA collaboration reported a sub-threshold gravitational wave candidate detection consistent with a sub-solar-mass neutron star merger, den…
Spectral siren cosmology from gravitational-wave observations in GWTC-4.0
Ignacio Magaña Hernandez, Antonella Palmese
Gravitational wave standard sirens offer a promising avenue for cosmological inference, particularly in measuring the expansion history of the universe. Traditionally, bright siren…
Astrophysics informed Gaussian processes for gravitational-wave populations: Evidence for the onset of the pair-instability supernova mass gap
Ignacio Magaña Hernandez, Antonella Palmese
We analyze binary black hole (BBH) mergers from the latest Gravitational Wave Transient Catalog (GWTC-3) using a flexible, non-parametric framework to infer the underlying black ho…
A new bump in the night: evidence of a new feature in the binary black hole mass distribution at from gravitational-wave observations
Ignacio Magaña Hernandez, Antonella Palmese
We analyze the confident binary black hole (BBH) detections from the third Gravitational-Wave Transient Catalog (GWTC-3) with an alternative mass population model in order to captu…
Beyond Gaps and Bumps: Spectral Siren Cosmology with Non-Parametric Population Models
Ignacio Magaña Hernandez, Anarya Ray
Gravitational wave standard sirens typically require electromagnetic (EM) data to obtain redshift information to constrain cosmology. Difficult to find EM counterparts for bright s…
Searching for binary black hole sub-populations in gravitational wave data using binned Gaussian processes
Anarya Ray, Ignacio Magaña Hernandez, Katelyn Breivik +1
Astrophysically motivated population models for binary black hole observables are often insufficient to capture the imprints of multiple formation channels. This is mainly due to t…
Bayesian statistical framework for identifying strongly lensed gravitational-wave signals
Rico K. L. Lo, Ignacio Magana Hernandez
It is expected that gravitational waves, similar to electromagnetic waves, can be gravitationally lensed by intervening matters, producing multiple instances of the same signal arr…