20 papers
Beyond the [OIII]4363 auroral line: [NeIII]3868 as a direct tracer of electron temperature
Borja Pérez-DÃaz, José M. VÃlchez, Marco Castellano +9
Auroral lines enable accurate measurements of chemical abundances in ionized gaseous nebulae thanks to their sensitivity to electron temperature. However, metal-enriched systems re…
Not So Isolated: Green Pea Galaxies in Overdense Environments revealed by VLT/MUSE
A. Arroyo-Polonio, J. M. VÃlchez, J. Iglesias-Páramo +9
Context. Green Pea galaxies (GPs) are local starburst galaxies serving as analogues for high-redshift star-forming galaxies, particularly Lyman continuum leakers. It remains debate…
Cold molecular gas distribution and kinematics in the low-metallicity dusty starburst of Mrk 996 resolved with ALMA
R. Slater, R. AmorÃn, J. A. Fernández-Ontiveros +10
Detecting cold molecular gas in metal-poor starbursts remains a major challenge. Low carbon and oxygen abundances hinder CO formation, while low dust content reduces shielding agai…
The DESIRED strong-line calibrations: I. New empirical metallicity relations for the local and high-redshift universe
F. F. Rosales-Ortega, J. E. Méndez-Delgado, J. U. Guerrero-González +16
We present the most comprehensive set of empirical optical strong-line metallicity calibrations to date, based on the DEep Spectra of Ionised REgions Database (DESIRED), the larges…
The k-MENDEL sample of local analogs to reionization galaxies. Spectral identification of EELGs and properties of green peas in DESI
L. Bonatto, R. AmorÃn, A. Giménez-Alcázar +7
Low-mass galaxies with intense starbursts exhibit spectra dominated by extreme nebular emission and faint stellar continua. These extreme emission-line galaxies (EELGs) are key lab…
Wild is the wind from low-luminosity AGN: a jet-driven gas bubble blowing out a massive CO-dark outflow in ESO 420-G13
J. A. Fernández-Ontiveros, L. Spinoglio, M. Pereira-Santaella +8
We present JWST/MIRI mid-infrared integral field spectroscopy combined with ALMA CO(2-1) observations of the post-starburst galaxy ESO 420-G13, hosting a low-luminosity AGN. The un…