ArXiv TLDR

J. M. Vílchez

5 papers · Latest:

Galaxies & Cosmology

Shape of Direct-Method Mass-Metallicity Relation with JWST: Fast-Track Nitrogen and Helium Enrichment

JWST data reveals the mass-metallicity relation from z=1-9, showing how auroral-line selection and star-formation history shape early galaxy enrichment.

2605.05327
Galaxies & Cosmology

Not So Isolated: Green Pea Galaxies in Overdense Environments revealed by VLT/MUSE

Green Pea galaxies are found in overdense environments with companions, suggesting their starbursts are driven by gas accretion rather than close mergers.

2605.03676
Galaxies & Cosmology

Cold molecular gas distribution and kinematics in the low-metallicity dusty starburst of Mrk 996 resolved with ALMA

ALMA observations of Mrk 996 reveal compact, dynamically perturbed cold molecular gas clouds, weakly coupled to stellar feedback in a low-metallicity starburst.

2604.20080
Galaxies & Cosmology

The DESIRED strong-line calibrations: I. New empirical metallicity relations for the local and high-redshift universe

This paper introduces the DESIRED strong-line metallicity calibrations, the most comprehensive empirical set for local and high-redshift galaxies.

2604.16273
Galaxies & Cosmology

The k-MENDEL sample of local analogs to reionization galaxies. Spectral identification of EELGs and properties of green peas in DESI

DESI identifies ~16,000 extreme emission-line galaxies (EELGs) as local analogs to reionization-era galaxies, characterizing their properties.

2604.09516

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