activity
20092026
most citedThe metallicity of the most distant quasars

146 citations · 153 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.IM2026

ANDES, the high-resolution spectrograph for the ELT: design and performance analysis of the YJH spectrograph

Vinooja Thurairethinam, David Lee, James Stevenson +29

The ArmazoNes high Dispersion Echelle Spectrograph (ANDES) is a powerful second-generation high-resolution spectroscopic instrument for the Extremely Large Telescope (ELT). The UBV…

astro-ph.IM2024★ 7 cited

Inferring redshift and galaxy properties via a multi-task neural net with probabilistic outputs: An application to simulated MOONS spectra

Michele Ginolfi, Filippo Mannucci, Francesco Belfiore +11

The era of large-scale astronomical surveys demands innovative approaches for rapid and accurate analysis of extensive spectral data, and a promising direction in which to address…

astro-ph.IM2024

ANDES, the high-resolution spectrograph for the ELT: RIZ Spectrograph preliminary design

Bruno Chazelas, Yevgeniy Ivanisenko, Audrey Lanotte +44

We present here the preliminary design of the RIZ module, one of the visible spectrographs of the ANDES instrument 1. It is a fiber-fed high-resolution, high-stability spectrograph…

astro-ph.IM2024

WST -- Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield Multi-object and Integral Field Spectroscopy

David Lee, Joel D. R. Vernet, Roland Bacon +23

WST - Widefield Spectroscopic Telescope: We summarise the design challenges of instrumentation for a proposed 12m class Telescope that aims to provide a large (>2.5 square degree)…

astro-ph.CO2009★ 146 cited

The metallicity of the most distant quasars

Y. Juarez, R. Maiolino, R. Mujica +5

We investigate the metallicity of the broad line region (BLR) of a sample of 30 quasars in the redshift range 4<z<6.4, by using near-IR and optical spectra. We focus on the ratio o…