activity
20192026
most citedA contribution of star-forming clumps and accreting satellites to the mass assembly of z ~ 2 galaxies

77 citations · 155 across the 9 of their papers we have counts for

collaborators

8 papers

astro-ph.GA2026

DeepDive: Simultaneous Formation of Massive Quiescent Galaxies in High-Redshift Galaxy Overdensities

Takumi Kakimoto, Masayuki Tanaka, Kei Ito +20

We report on the spectroscopic confirmation of overdense regions of massive quiescent galaxies (QGs) in the early Universe with JWST/NIRSpec. Based on data from the DeepDive NIRSpe…

astro-ph.GA2026

The role of small-scale environments in the quenching of massive galaxies at

Takumi Kakimoto, Masayuki Tanaka, Makoto Ando +10

Massive quiescent galaxies (QGs) at high redshifts are likely progenitors of massive elliptical galaxies in the local Universe. Recent discoveries of high-redshift QGs in overdensi…

astro-ph.GA2026

The ionised interstellar medium of DSFGs revealed by JWST/NIRSpec and ALMA: Super-solar metallicity, low ionisation parameters and, typical electron densities

Steven Gillman, Kei Ito, Francesco Valentino +25

We present a detailed study of near-infrared (2-4m) JWST/NIRSpec spectra of 48 high-redshift () galaxies detected with ALMA at . From a multi-wa…

astro-ph.GA2026

DeepDive: Tracing the early quenching pathways of massive quiescent galaxies at from their star-formation histories and chemical abundances

Massissilia L. Hamadouche, Katherine E. Whitaker, Francesco Valentino +21

We investigate the chemical abundances and star-formation histories (SFH) of ten massive () quiescent galaxies at usi…

astro-ph.GA2026

There and back again? Neutral outflows in z~3.5 quiescent galaxies

Pengpei Zhu, Kei Ito, Francesco Valentino +16

Neutral gas outflows play a crucial role in the baryon cycle of galaxies, their properties provide key insights into the transition from star formation to quiescence. In this work,…

astro-ph.GA2026★ 1 cited

Dynamical properties and star formation history of a low-mass quenched galaxy at Cosmic Noon

K. Ito, F. Valentino, W. M. Baker +12

We present the spectroscopic confirmation and in-depth analysis of AURORA-LQG1, a low-mass quiescent galaxy at with observed with…

astro-ph.GA2025

DeepDive: A deep dive into the physics of the first massive quiescent galaxies in the Universe

K. Ito, F. Valentino, G. Brammer +26

We present the DeepDive program, in which we obtained deep JWST/NIRSpec G235M/F170LP spectra for ten primary massive () quiescent galaxies at $z\…

astro-ph.GA2019★ 77 cited

A contribution of star-forming clumps and accreting satellites to the mass assembly of z ~ 2 galaxies

A. Zanella, E. Le Floc'h, C. M. Harrison +14

We investigate the contribution of clumps and satellites to the galaxy mass assembly. We analyzed spatially-resolved Hubble Space Telescope observations (imaging and slitless spect…