collaborators

5 papers

astro-ph.GA2026

The warm outer layer of a Little Red Dot as the source of [Fe II] and collisional Balmer lines with scattering wings

Alberto Torralba, Jorryt Matthee, Gabriele Pezzulli +22

The population of the Little Red Dots (LRDs) may represent a key phase of supermassive black hole (SMBH) growth. A cocoon of dense excited gas is emerging as key component to expla…

astro-ph.GA2026

The slope and scatter of the star forming main sequence at z~5 : reconciling observations with simulations

Claudia Di Cesare, Jorryt Matthee, Rohan P. Naidu +17

Galaxies exhibit a tight correlation between their star-formation rate and stellar mass over a wide redshift range known as the star-forming main sequence (SFMS). With JWST, we can…

astro-ph.GA2025

Rapid, out of equilibrium metal enrichment indicated by a flat mass-metallicity relation at z~6 from NIRCam grism spectroscopy

Gauri Kotiwale, Jorryt Matthee, Daichi Kashino +17

We aim to characterise the mass-metallicity relation (MZR) and the 3D correlation between stellar mass, metallicity and star-formation rate (SFR) known as the fundamental metallici…

astro-ph.GA2025

A weak Ly halo for an extremely bright Little Red Dot: Indications of enshrouded SMBH growth

Alberto Torralba, Jorryt Matthee, Gabriele Pezzulli +13

The abundant population of "Little Red Dots" (LRDs)-compact objects with red UV to optical colors and broad Balmer lines at high redshift-is unveiling new insights into the propert…

astro-ph.GA2025

The Light Echo of a High-Redshift Quasar mapped with Lyman- Tomography

Anna-Christina Eilers, Minghao Yue, Jorryt Matthee +11

Ultra-violet (UV) radiation from accreting black holes ionizes the intergalactic gas around early quasars, carving out highly ionized bubbles in their surroundings. Any changes in…