11 papers
The quasi-star model for Little Red Dots: potential and challenges
Fabrizio Gentile, Mauro Giavalisco, Emanuele Daddi +25
(Abridged) Little Red Dots (LRDs) are a class of sources discovered by JWST observationally defined by a "V-shaped" rest-frame UV-Optical SED, a compact or unresolved morphology, a…
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…
Investigating ionising sources and the complex interstellar medium of GHZ2 at
M. Castellano, L. Napolitano, B. Moreschini +27
An accurate characterisation of the physical properties of galaxies at cosmic dawn is key to understanding the origin of the high abundance of UV-bright galaxies at z10. W…
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…
EGS-z11-R0: a red, dust-rich galaxy at Cosmic Dawn
Giulia Rodighiero, Andrea Ferrara, Michele Catone +16
Context. Galaxies discovered by JWST at z > 10 are predominantly characterized by extremely blue rest-frame UV slopes. Conversely, the existence of dust-reddened systems at such ea…