The Environment of High-Energy Transient Host Galaxies at High Redshifts as Observed by SHARP
Abstract
The study of transient events, such as Gamma-Ray Bursts (GRBs) and extreme Supernovae (SNe), provides a unique probe of star-forming environments in the early Universe. Traditional global host galaxy studies often fail to capture the local conditions around the progenitor, leading to potential mischaracterizations due to metallicity gradients and spatial inhomogeneities. Using high spatial resolution integral field unit (IFU) data, such as those obtained with SHARP/VESPER, allows us to spatially resolve the host galaxies and accurately determine the physical properties (metallicity, stellar age, kinematics) at the precise explosion site. Here, we review the need for near-infrared spatially-resolved observations to link progenitor properties, such as the required low metallicity for long GRBs, to their birth environments, and highlight the crucial role of instruments like SHARP in advancing high-redshift transient science, including the characterization of SNe without associated GRBs and Kilonovae hosts.
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BibTeX
@misc{izzo2026environment,
title = {{The Environment of High-Energy Transient Host Galaxies at High Redshifts as Observed by SHARP}},
author = {L. Izzo},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.06352},
eprint = {2611.06352},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.06352},
}
RIS
TY - UNPB
TI - The Environment of High-Energy Transient Host Galaxies at High Redshifts as Observed by SHARP
AU - L. Izzo
PY - 2026
DA - 2026/11/04
PB - arXiv
DO - 10.48550/arxiv.2611.06352
UR - https://arxiv.org/abs/2611.06352
AB - The study of transient events, such as Gamma-Ray Bursts (GRBs) and extreme Supernovae (SNe), provides a unique probe of star-forming environments in the early Universe. Traditional global host galaxy studies often fail to capture the local conditions around the progenitor, leading to potential mischaracterizations due to metallicity gradients and spatial inhomogeneities. Using high spatial resolution integral field unit (IFU) data, such as those obtained with SHARP/VESPER, allows us to spatially resolve the host galaxies and accurately determine the physical properties (metallicity, stellar age, kinematics) at the precise explosion site. Here, we review the need for near-infrared spatially-resolved observations to link progenitor properties, such as the required low metallicity for long GRBs, to their birth environments, and highlight the crucial role of instruments like SHARP in advancing high-redshift transient science, including the characterization of SNe without associated GRBs and Kilonovae hosts.
ER -