Published February 27, 2026
| Version v1
Poster
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ESO137-G034: Unveiling Coronal Structures and Feedback Mechanisms
Description
Active galactic nuclei (AGN) are among the brightest objects in the Universe, emitting across the
entire electromagnetic spectrum. The coupling of radiation from the central source with the inter
stellar medium (ISM) generates feedback, capable of producing turbulence, outflows, and coronal
line emission. This study focuses on the galaxy ESO137-G034, ideal for feedback studies due to
a jet in strong interaction with the ISM. [O III] observations with HST reveal a conical structure
and a 'Z'-shaped formation, while ATCA data show three radio lobes aligned with emitting regions,
suggesting mechanical feedback. The objectives of this study include: characterizing the ionized
gas morphology, quantifying nuclear and peripheral contributions, and performing multiband com
parisons (near and mid-infrared) to map coronal gas. Data were obtained through integral field
spectroscopy with the SINFONI (VLT) and MIRI-MRS (JWST). The analysis revealed, for the
f
irst time, the nucleus position, and MIRI-MRS maps indicate, for the first time, [Ne V] exten
sions up to 1.1 kpc, with coronal emission lobes and filaments. [Si VI] emission shows a nuclear
contribution of ∼1%, highlighting shocks as an additional energy mechanism. We conclude that
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ESO137-G034 exhibits significant feedback, with filamentary coronal structures and lobes surpass
ing the central region in flux, making it a peculiar case in the literature.
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AGN_MCarneiro.pdf
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