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Rapid-response 1.3 mm Observations of GRB 260127A with the Submillimeter Array
Garrett K. Keating, Tanmoy Laskar, Anna Y. Q. Ho +9
We present the results from rapid-response 1.3 mm observations of GRB 260127A using the Submillimeter Array (SMA). SMA arrived on-source 12.6 minutes after the initial detection by…
A Radio Study of Persistent Radio Sources in Nearby Dwarf Galaxies: Implications for Fast Radio Bursts
Y. Dong, T. Eftekhari, W. Fong +17
We present 1 - 12 GHz Karl G. Jansky Very Large Array observations of 9 off-nuclear persistent radio sources (PRSs) in nearby (z < 0.055) dwarf galaxies, along with high-resolution…
Millimeter Observations of the Type II SN2023ixf: Constraints on the Proximate Circumstellar Medium
Edo Berger, Garrett K. Keating, Raffaella Margutti +10
We present 1.3 mm (230 GHz) observations of the recent and nearby Type II supernova, SN2023ixf, obtained with the Submillimeter Array (SMA) at 2.6-18.6 days after explosion. The ob…
The Radio to GeV Afterglow of GRB 221009A
Tanmoy Laskar, Kate D. Alexander, Raffaella Margutti +27
GRB 221009A () is one of the closest known long -ray bursts (GRBs). Its extreme brightness across all electromagnetic wavelengths provides an unprecedented opportunity…
The Luminosity Phase Space of Galactic and Extragalactic X-ray Transients Out to Intermediate Redshifts
Ava Polzin, Raffaella Margutti, Deanne Coppejans +8
We present a detailed compilation and analysis of the X-ray phase space of low- to intermediate-redshift () transients that consolidates observed light curves (and t…
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 Sw…