activity
20182026
most citedAn embedded X-ray source shines through the aspherical AT2018cow: revealing the inner workings of the most luminous fast-evolving optical transients

267 citations · 682 across the 19 of their papers we have counts for

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Showing 2023Show all

5 papers · 1 filter

astro-ph.HE2023★ 1 cited

Roaring to softly whispering: Persistent X-ray emission at the location of the Fast Blue Optical Transient AT2018cow 3.7 yrs after discovery and implications on accretion-powered scenarios

G. Migliori, R. Margutti, B. D. Metzger +11

We present the first deep X-ray observations of a luminous FBOT AT2018cow, at since discovery, together with the re-analysis of the observation at d…

astro-ph.HE2023★ 7 cited

SN 2023ixf in Messier 101: Photo-ionization of Dense, Close-in Circumstellar Material in a Nearby Type II Supernova

W. V. Jacobson-Galan, L. Dessart, R. Margutti +65

We present UV/optical observations and models of supernova (SN) 2023ixf, a type II SN located in Messier 101 at 6.9 Mpc. Early-time ("flash") spectroscopy of SN 2023ixf, obtained p…

astro-ph.HE2023★ 3 cited

Unprecedented X-ray Emission from the Fast Blue Optical Transient AT2022tsd

D. J. Matthews, R. Margutti, B. D. Metzger +8

We present the X-ray monitoring campaign of AT2022tsd in the time range d rest-frame since discovery. With an initial 0.3-10 keV X-ray luminosity of $L_x \ap…

astro-ph.HE2023★ 84 cited

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…

astro-ph.HE2023★ 16 cited

Scary Barbie: An Extremely Energetic, Long-Duration Tidal Disruption Event Candidate Without a Detected Host Galaxy at z = 0.995

Bhagya M. Subrayan, Dan Milisavljevic, Ryan Chornock +19

We report multi-wavelength observations and characterization of the ultraluminous transient AT 2021lwx (ZTF20abrbeie; aka ``Barbie'') identified in the alert stream of the Zwicky T…