collaborators

16 papers

astro-ph.GA2026

VENUS: an ultra-faint galaxy hosting the metal-poor type II supernova at Witnessing the initial metal enrichment with extremely frequent core-collapse supernovae?

Yoshihisa Asada, Seiji Fujimoto, Joseph F. V. Allingham +50

The paper reports the discovery and detailed study of a type IIP core‑collapse supernova (SN Eos) at redshift 5.13, whose ultra‑faint, strongly lensed host galaxy is extremely meta…

astro-ph.GA2026

High-ionization coronal lines trace quasar-like activity in recently quenched galaxies at high redshift

F. Valentino, K. Ito, M. Farcy +31

We report the detection of the high-ionization line [NeV]3427 in the JWST/NIRSpec archival spectra of 6 massive quenched galaxies at , identified from a parent…

astro-ph.GA2026

The ALPINE-CRISTAL-JWST Survey: Gas-phase abundance gradients of main sequence star-forming galaxies and their kinematics at

Lilian L. Lee, Natascha M. Förster Schreiber, Seiji Fujimoto +50

We present gas-phase radial metallicity profiles for 20 main-sequence galaxies at , primarily based on JWST NIRSpec IFU observations obtained as part of the JWST-ALPINE-CRIS…

astro-ph.HE2026

The case for super-Eddington accretion in JWST broad-line AGN during the first billion years

Erini Lambrides, Rebecca Larson, Kristen Garofali +23

A multitude of JWST studies reveal a surprising over-abundance of over-massive accreting super-massive black holes (SMBHs) -- leading to a deepening tension between theory and obse…

astro-ph.EP2025

SPHEREx Discovery of Strong Water Ice Absorption and an Extended Carbon Dioxide Coma in 3I/ATLAS

C. M. Lisse, Y. P. Bach, S. Bryan +17

In mid-August 2025, 0.75-5.0 micron SPHEREx imaging spectrophotometric and ancillary NASA-IRTF SpeX 0.7-2.5 micron low-resolution spectral observations of Interstellar Object 3I AT…

astro-ph.GA2025

The ALPINE-CRISTAL-JWST survey: spatially resolved star formation relations at

C. Accard, M. Béthermin, M. Boquien +37

Star formation governs galaxy evolution, shaping stellar mass assembly and gas consumption across cosmic time. The Kennicutt-Schmidt (KS) relation, linking star formation rate (SFR…