Cover Image

New clues on the extended HeII ionization in IZw18 from GTC/MEGARA and JWST/MIRI

Fuente: arXiv

Saved in:

Bibliographic Details
Main Authors:	Arroyo-Polonio, A., Kehrig, C., Vílchez, J. M., Iglesias-Páramo, J., Perez-Montero, E., Puertas, S. Duarte, Gallego, J., Reverte, D.
Format:	Preprint
Published:	2025
Subjects:	Astrophysics of Galaxies
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

Similar Items

Unraveling the Kinematics of IZw18: A Detailed Study of Ionized Gas with MEGARA/GTC
by: Arroyo-Polonio, Antonio, et al.
Published: (2024)

HeII emitters at cosmic noon and beyond. Characterising the HeII λ1640 emission with MUSE and JWST/NIRSpec
by: González-Díaz, R., et al.
Published: (2025)

The Interstellar Medium in IZw18 seen with JWST/MIRI: I. Highly Ionized Gas
by: Hunt, L. K., et al.
Published: (2025)

Declining metallicity and extended HeII in the outflow of an epoch of reionization analogue galaxy
by: Hamel-Bravo, M. J., et al.
Published: (2025)

Extreme Emission-Line Galaxies in the MUSE Hubble Ultra Deep Field Survey
by: del Moral-Castro, I., et al.
Published: (2024)

Measuring photo-ionization rate and mean free path of HeII ionizing photons at $2.5 \leq z \leq 3.6$: Evidence for late and rapid HeII reionization Part-II
by: Gaikwad, Prakash, et al.
Published: (2025)

Strong nebular HeII emission induced by He$^+$ ionizing photons escaping through the clumpy winds of massive stars
by: Roy, Arpita, et al.
Published: (2025)

The MEGARA view of outflows in LINERs
by: Muñoz, L. Hermosa, et al.
Published: (2023)

Not So Isolated: Green Pea Galaxies in Overdense Environments revealed by VLT/MUSE
by: Arroyo-Polonio, A., et al.
Published: (2026)

The significant contribution of supersoft X-ray Sources to the nebular HeII line emission
by: Triani, Dian P., et al.
Published: (2024)

A Sample of HeII $λ$4686 "Changing-Look" Quasars
by: Lu, Wentao, et al.
Published: (2025)

First direct electron temperature measurement in [O II] zone in I Zw 18
by: Zinchenko, I. A., et al.
Published: (2026)

Exploring the hardness of the ionizing radiation with the infrared softness diagram. II. Bimodal distributions in both the ionizing continuum slope and the excitation in active galactic nuclei
by: Pérez-Montero, E., et al.
Published: (2025)

MEGADES: MEGARA galaxy disc evolution survey. Ionised gas diagnosis
by: Chamorro-Cazorla, M., et al.
Published: (2025)

Unveiling IZw18 age's mystery: Resolved Stellar Populations and Star Formation History Study with JWST/NIRCam
by: Bortolini, Giacomo
Published: (2025)

Open clusters in the outer disc studied with MEGARA@GTC Auner 1 and Berkeley 102
by: Carbajo-Hijarrubia, J., et al.
Published: (2025)

Multi-phase AGN-driven outflow in the NLSy1 IRAS 17020+4544. Unveiling dual-feedback and an energy-conserving ionized outflow with MEGARA/GTC integral field spectroscopy
by: Bellocchi, E., et al.
Published: (2026)

Clues of the restarting active galactic nucleus activity of Mrk 1498 from GTC/MEGARA integral field spectroscopy data
by: Cazzoli, S., et al.
Published: (2024)

Characterizing chemical abundance ratios in extremely metal-poor star-forming galaxies in DESI EDR
by: Zinchenko, I. A., et al.
Published: (2024)

The search for Population III: Confirmation of a HeII emitter with no metal lines at z=10.6
by: Maiolino, Roberto, et al.
Published: (2026)

Testing AGN outflow and accretion models with CIV and HeII emission line demographics in z=2 quasars
by: Temple, Matthew J., et al.
Published: (2023)

MICONIC: JWST/MIRI MRS reveals a fast ionized gas outflow in the central region of Centaurus A
by: Alonso-Herrero, A., et al.
Published: (2025)

The origin of ionized gas in retired galaxies: dynamical clues
by: Valk, Greique A., et al.
Published: (2025)

The Interstellar Medium in I Zw 18 seen with JWST/MIRI: II. Warm Molecular Hydrogen and Warm Dust
by: Hunt, L. K., et al.
Published: (2025)

A hide-and-seek game: Looking for Population III stars during the Epoch of Reionization through the HeII$λ$1640 line
by: Venditti, Alessandra, et al.
Published: (2024)

The Pristine HeII Emitter near GN-z11: Constraining the Mass Distribution of the First Stars
by: Rusta, Elka, et al.
Published: (2026)

JWST/MIRI-MRS view of the metal-poor galaxy CGCG 007-025: the spatial location of PAHs and very highly ionized gas
by: del Valle-Espinosa, Macarena G., et al.
Published: (2025)

Exploring the mysterious high-ionization source powering [Ne V] in high-z analog SBS0335-052 E with JWST/MIRI
by: Mingozzi, Matilde, et al.
Published: (2025)

ReveaLLAGN 0: First Look at JWST MIRI data of Sombrero and NGC 1052
by: Goold, K., et al.
Published: (2023)

JWST/MIRI reveals the true number density of massive galaxies in the early Universe
by: Wang, Tao, et al.
Published: (2024)

Insight into the Starburst Nature of Galaxy GN-z11 with JWST MIRI Spectroscopy
by: Álvarez-Márquez, J., et al.
Published: (2024)

JWST MIRI-MRS observations of the Red Rectangle: AIB class transformation in the outer nebula
by: Ebenbichler, A., et al.
Published: (2026)

Interstellar medium phases and abundances in the central parsec: A JWST MIRI/MRS view of the Galactic center
by: Vermot, P., et al.
Published: (2025)

Dark-matter central density, annihilation J-factor and decay D-factor of the Fornax, Sculptor and Leo I dwarf spheroidal galaxies
by: Nipoti, Carlo, et al.
Published: (2024)

JWST MIRI and NIRCam observations of NGC 891 and its circumgalactic medium
by: Chastenet, Jérémy, et al.
Published: (2024)

The Volatile Inventory of 3I/ATLAS as seen with JWST/MIRI
by: Belyakov, Matthew, et al.
Published: (2026)

MICONIC: JWST/MIRI MRS observations of the nuclear and circumnuclear regions of Mrk231
by: Alonso-Herrero, A., et al.
Published: (2024)

JWST MIRI color classification of mid-infrared selected galaxies: MIRI color classification toward cosmic noon
by: Kilerci, Ece, et al.
Published: (2025)

The Interstellar Medium in I Zw 18 seen with JWST/MIRI: III. Spatially Resolved Three Ionization State Oxygen Abundance
by: Vaught, Ryan J. Rickards, et al.
Published: (2025)

Shape of Direct-Method Mass-Metallicity Relation with JWST: Fast-Track Nitrogen and Helium Enrichment
by: Giménez-Alcázar, A., et al.
Published: (2026)