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62 papers
JWST unveils a dust-obscured supernova associated with a gamma-ray burst
B. Schneider, A. J. Levan, N. Sarin +22
Recent observations have challenged the duration-based classification of gamma-ray bursts (GRBs), making the detection of an associated supernova (SN) or kilonova crucial for concl…
The broad-lined type Ic supernova 2020lao experienced an energetic explosion with no central-engine signatures
M. D. Stritzinger, T. J. Moriya, S. Bose +18
We present infant-phase observations of the SN Ic-BL 2020lao, including optical spectroscopy beginning 48 hrs after explosion. The explosion time was constrained by power-law fits…
SN 2014C: a metamorphic supernova exploded in the intricate and hydrogen-rich surroundings
Qian Zhai, Jujia Zhang, Weili Lin +6
We present photometric and spectroscopic observations of supernova (SN) 2014C, primarily emphasizing the initial month after the explosion at approximately daily intervals. During…
The Redshift of GRB 190829A/ SN 2019oyw: A Case Study of GRB-SN Evolution
Kornpob Bhirombhakdi, Andrew S. Fruchter, Andrew J. Levan +7
The nearby long gamma-ray burst (GRB) 190829A was observed using the HST/WFC3/IR grisms about four weeks to 500 days after the burst. We find the spectral features of its associate…
A Hubble Space Telescope Search for r-Process Nucleosynthesis in Gamma-ray Burst Supernovae
J. C. Rastinejad, W. Fong, A. J. Levan +23
The existence of a secondary (in addition to compact object mergers) source of heavy element (-process) nucleosynthesis, the core-collapse of rapidly-rotating and highly-magneti…
Local starburst conditions and formation of GRB 980425 / SN 1998bw within a collisional ring
M. Arabsalmani, F. Renaud, S. Roychowdhury +9
We present the first spatially resolved study of molecular gas in the vicinity of a Gamma Ray Burst, using CO(2-1) emission line observations with the Atacama Large Millimetre Arra…