activity
20242026
most citedThe rise and fall of Little Red Dots could be driven by the environment

1 citations · 1 across the 3 of their papers we have counts for

collaborators

9 papers

astro-ph.IM2026

Feasibility of up-the-ramp sampling under variable sky for ground-based spectrographs

Gaia Gaspar, Marcin Sawicki, Nelson Nunes +2

Many modern near-infrared instruments employ HAWAII-2RG (H2RG) detectors with integration times that can reach 300-600s. Up-the-ramp (UTR) sampling offers advantages over Fowler sa…

astro-ph.GA2026

UV-to-optical insights into the BH model in little red dots

Rosa M. Mérida, Rosa M. Mérida, Marcin Sawicki +3

Little Red Dots (LRDs) are a heterogeneous class of objects, with several proposed scenarios for their physical nature and evolution. While these theories have been tested on indiv…

astro-ph.GA2026

Testing the BH Model: a UV-to-Optical Spectral Fitting of The Cliff

Rosa M. Mérida, Marcin Sawicki, Gaia Gaspar +2

In the black hole star (BH*) model, the characteristic "V"-shaped SED of LRDs is produced by an accreting BH embedded in a dense neutral-gas envelope with a near-unity covering fac…

astro-ph.GA20261 cited

The rise and fall of Little Red Dots could be driven by the environment

Rosa M. Mérida, Gaia Gaspar, Yoshihisa Asada +9

The Little Red Dot (LRD) paradigm comprises three main unknowns that are intrinsically connected: (1) What is the nature of these sources? (2) How do they form? (3) How do they evo…

astro-ph.GA2026

Probing the Star Formation Main Sequence down to 10 at

Rosa M. Mérida, Marcin Sawicki, Kartheik G. Iyer +12

The Main Sequence of Star-Forming Galaxies (SFGMS or MS) is a fundamental scaling relation that provides a global framework for studying galaxy formation and evolution, as well as…

astro-ph.GA2025

A deep dive down the broad-line region: permitted OI, CaII and FeII emission in an AGN Little Red Dot at z=5.3

Roberta Tripodi, Maruša Bradač, Francesco D'Eugenio +27

We present a spectroscopic analysis of a broad-line active galactic nucleus (AGN) selected as little red dot at behind the Bullet cluster (Bz5.3), based on JWST/NIRCam an…