activity
20242026
collaborators

6 papers

astro-ph.GA2026

HI-bearing dark galaxies predictions from constrained Local Group simulations: how many and where to find them

Guacimara García-Bethencourt, Arianna Di Cintio, Sébastien Comerón +7

Dark galaxies are small, DM-dominated halos whose gas remains in hydrostatic and thermal equilibrium and has never formed stars. They are of particular interest because they repres…

astro-ph.IM2025

Why the Northern Hemisphere Needs a 30-40 m Telescope and the Science at Stake: Mapping formation pathways of nuclear star clusters across galaxies

Francesca Pinna, Isabel Pérez, Anna Ferré-Mateu +21

Nuclear star clusters (NSCs) are dense, compact stellar systems only a few parsecs across, located at galaxy centers. Their small sizes make them difficult to resolve spatially. NS…

astro-ph.IM2025

NASIM: Revealing the low surface brightness Universe from legacy VISTA data

Elham Saremi, Ignacio Trujillo, Mohammad Akhlaghi +5

Near-infrared imaging is a powerful technique in observational astronomy, but the bright background, primarily from the Earthś atmosphere, makes the detection of faint features pa…

astro-ph.GA2025

Relatively young thick disks in star-forming late-type galaxies

Natascha Sattler, Francesca Pinna, Sebastien Comerón +4

We trace the evolution of eight edge-on star-forming disk galaxies by analyzing stellar population properties of their thin and thick disks. These galaxies have relatively low stel…

astro-ph.GA2025

Spatially resolved circumnuclear coronal emission in nearby Seyfert galaxies

S. Comerón, A. Prieto, P. Dabhade

Coronal lines are forbidden emission lines with a ionisation potential . They are linked to energetic phenomena triggered by AGNs in the circumnuclear mediu…

astro-ph.GA2024

Assessing the accuracy of the star formation rate measurements by direct star count in molecular clouds

Sami Dib, Jian Wen Zhou, Sébastien Comerón +8

Star formation estimates based on the counting of YSOs is commonly applied to nearby star-forming regions in the Galaxy. With this method, the SFRs are measured using the counts of…