Publications (12)
GRB 250702B: Discovery of a Gamma-Ray Burst from a Black Hole Falling into a Star
Eliza Neights, Eric Burns, Chris L. Fryer +52
Gamma-ray bursts are the most luminous electromagnetic events in the universe. Their prompt gamma-ray emission has typical durations between a fraction of a second and several minu…
Radio Follow Up of a Sub-threshold GRB in the Sky Localization Area of GW241125
Natalie Gottschlich, Alessandra Corsi, S. Bradley Cenko +5
Since the Fermi satellite's identification of a candidate -ray burst (GRB) temporally coincident with GW150914, several tentative, and often debated, associations between elect…
Comprehensive X-ray Observations of the Exceptional Ultra-long X-ray and Gamma-ray Transient GRB 250702B with Swift, NuSTAR, and Chandra: Insights from the X-ray Afterglow Properties
Brendan O'Connor, Ramandeep Gill, James DeLaunay +22
GRB 250702B is an exceptional transient that produced multiple episodes of luminous gamma-ray radiation lasting for ks, placing it among the class of ultra-long gamma-ray bur…
Swiftly chasing gravitational waves across the sky in real-time
Aaron Tohuvavohu, Jamie A. Kennea, Christopher J. Roberts +8
We introduce a new capability of the Neil Gehrels Swift Observatory, dubbed `continuous commanding,' achieving 10 seconds latency response time on-orbit to unscheduled Target of Op…
The First Short GRB Millimeter Afterglow: The Wide-Angled Jet of the Extremely Energetic SGRB 211106A
Tanmoy Laskar, Alicia Rouco Escorial, Genevieve Schroeder +14
We present the discovery of the first millimeter afterglow of a short-duration -ray burst (SGRB) and the first confirmed afterglow of an SGRB localized by the GUANO system on S…
GRB220831A: a hostless, intermediate Gamma-ray burst with an unusual optical afterglow
James Freeburn, Brendan O'Connor, Jeff Cooke +20
GRB220831A is a gamma-ray burst (GRB) with a duration and spectral peak energy that places it at the interface between the distribution of long-soft and short-hard GRBs. In thi…
A Demonstration of Extremely Low Latency -ray, X-Ray & UV Follow-Up of a Millisecond Radio Transient
Aaron Tohuvavohu, Casey J. Law, Jamie A. Kennea +18
We report results of a novel high-energy follow-up observation of a potential Fast Radio Burst. The radio burst was detected by VLA/realfast and followed-up by the Neil Gehrels Swi…
Harvesting BAT-GUANO with NITRATES (Non-Imaging Transient Reconstruction And TEmporal Search): Detecting and localizing the faintest GRBs with a likelihood framework
James DeLaunay, Aaron Tohuvavohu
The detection of the gravitational wave counterpart GRB 170817A, underluminous compared to the cosmological GRB population by a factor of 10,000, motivates significant effort in de…
Gamma-ray Transient Network Science Analysis Group Report
Eric Burns, Michael Coughlin, Kendall Ackley +34
The Interplanetary Network (IPN) is a detection, localization and alert system that utilizes the arrival time of transient signals in gamma-ray detectors on spacecraft separated by…
Gamma-ray Urgent Archiver for Novel Opportunities (GUANO): Swift/BAT event data dumps on demand to enable sensitive sub-threshold GRB searches
Aaron Tohuvavohu, Jamie A. Kennea, James DeLaunay +3
We introduce a new capability of the Neil Gehrels Swift Observatory, to provide event data from the Burst Alert Telescope (BAT) on demand in response to transients detected by othe…
Astrophysical Multimessenger Observatory Network (AMON): Science, Infrastructure, and Status
Azadeh Keivani, Hugo Ayala, James DeLaunay
The realization of multimessenger astrophysics will open new vistas upon the most energetic events in the universe. Messenger particles of all four of nature's fundamental forces,…
Substructure in bulk velocities of Milky Way disk stars
Jeffrey L. Carlin, James DeLaunay, Heidi Jo Newberg +11
We find that Galactic disk stars near the anticenter exhibit velocity asymmetries in both the Galactocentric radial and vertical components across the mid-plane as well as azimutha…