activity
20082026
most citedA glimpse of the end of the dark ages: the gamma-ray burst of 23 April 2009 at redshift 8.3

625 citations · 850 across the 13 of their papers we have counts for

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Showing astro-ph.HEShow all

9 papers · 1 filter

astro-ph.HE2026

Extreme Stellar Death and Galaxy Feedback at z = 2: A Rest-frame Ultraviolet Characterization of the Strongly Lensed Superluminous Supernova 2025wny

Willem B. Hoogendam, David O. Jones, Christopher J. Storfer +26

We present photometric and spectroscopic follow-up observations of the strongly-lensed H-poor superluminous supernova (SLSN) 2025wny at . We use integral-field Keck-II/…

astro-ph.HE2026

JWST and Keck observations of the off-nuclear tidal disruption event TDE 2025abcr: An evolving reprocessing layer

Kishore C. Patra, Emily R. Liepold, Nicholas Earl +14

Off-nuclear tidal disruption events (TDEs) provide a rare probe of massive black holes (MBHs) outside galactic nuclei. Only a handful are known, including five X-ray-selected candi…

astro-ph.HE2025

GRB 230307A Formed No Dust or Was Not a Binary Neutron Star Merger

Prasiddha Arunachalam, Phillip Macias, Ryan. J. Foley

We present a new analysis of the JWST infrared spectra of GRB 230307A (AT 2023vfi), a long gamma-ray burst (GRB) with an infrared excess and spectral lines suggestive of significan…

astro-ph.HE2025

JWST and Keck Observations of the Off-Nuclear TDE AT 2024tvd: A Massive Nuclear Star Cluster and Minor-Merger Origin for its Black Hole

Kishore C. Patra, Ryan J. Foley, Nicholas Earl +10

We present JWST/NIRSpec and NIRCam observations of the first optically selected off-nuclear tidal disruption event (TDE), AT 2024tvd, along with Keck/KCWI integral field unit spect…

astro-ph.HE2025★ 1 cited

The Most Luminous Known Fast Blue Optical Transient AT 2024wpp: Unprecedented Evolution and Properties in the Ultraviolet to the Near-Infrared

Natalie LeBaron, Raffaella Margutti, Ryan Chornock +45

We present an extensive photometric and spectroscopic ultraviolet-optical-infrared campaign on the luminous fast blue optical transient (LFBOT) AT 2024wpp over the first ~100 d. AT…

astro-ph.HE2025

The Type II SN 2025pht in NGC 1637: A Red Supergiant with Carbon-rich Circumstellar Dust as the First JWST Detection of a Supernova Progenitor Star

Charles D. Kilpatrick, Aswin Suresh, Kyle W. Davis +7

We present follow-up imaging and spectroscopy and pre-explosion imaging of supernova (SN) 2025pht located in NGC 1637 at 12 Mpc. Our spectroscopy shows that SN 2025pht is a Type II…