6 papers
Search for Sub-Solar Mass Binaries in the First Part of LIGO's Fourth Observing Run
Keisi Kacanja, Kanchan Soni, Aleyna Akyüz +1
We report the first results of a sub-solar mass compact binary search using the data from the first part of the fourth observing run (O4a) of the Advanced LIGO detectors. Sub-solar…
Beyond FINDCHIRP: Breaking the memory wall and optimal FFTs for Gravitational-Wave Matched-Filter Searches with Ratio-Filter Dechirping
Alexander H. Nitz, Keisi Kacanja, Kanchan Soni
A primary bottleneck in modern FFT-based matched-filter searches for gravitational waves from compact binary coalescences is not raw processor throughput, but available memory band…
Eccentricity signatures in LIGO-Virgo-KAGRA's BNS and NSBH binaries
Keisi Kacanja, Kanchan Soni, Alexander Harvey Nitz
Measurement of eccentricity in low-mass binary systems through gravitational waves is crucial to distinguish between various formation channels. Detecting eccentricity in these sys…
Potential science with GW250114 -- the loudest binary black hole merger detected to date
Aleyna Akyüz, Alex Correia, Jada Garofalo +7
On January 14, 2025 the LIGO interferometers detected a gravitational wave from the merger of two black holes, GW250114. Using publicly available information, we estimate that the…
Mining the Alerts: A Preliminary Catalog of Compact Binaries from the Fourth Observing Run
Aleyna Akyüz, Alex Correia, Jada Garofalo +7
We present a preliminary catalog of compact binary merger candidates from the ongoing fourth observing run (O4) of Advanced LIGO, Virgo, and KAGRA, based on an analysis of public a…
A Search for Low-Mass Neutron Stars in the Third Observing Run of Advanced LIGO and Virgo
Keisi Kacanja, Alexander H. Nitz
Most observed neutron stars have masses around 1.4 , consistent with current formation mechanisms. To date, no sub-solar mass neutron star has been observed. Observing a l…