activity
20132026
most citedNew Constraints on the free-streaming of warm dark matter from intermediate and small scale Lyman- forest data

540 citations · 956 across the 27 of their papers we have counts for

collaborators
Showing 2023Show all

6 papers · 1 filter

astro-ph.GA2023★ 17 cited

Probing the early Milky Way with GHOST spectra of an extremely metal-poor star in the Galactic disk

Anya Dovgal, Kim A. Venn, Federico Sestito +31

Pristine_183.6849+04.8619 (P1836849) is an extremely metal-poor ([Fe/H]) star on a prograde orbit confined to the Galactic disk. Such stars are rare and may have their…

astro-ph.SR2023

SPLUS J142445.34-254247.1: An R-Process Enhanced, Actinide-Boost, Extremely Metal-Poor star observed with GHOST

Vinicius M. Placco, Felipe Almeida-Fernandes, Erika M. Holmbeck +33

We report on the chemo-dynamical analysis of SPLUS J142445.34-254247.1, an extremely metal-poor halo star enhanced in elements formed by the rapid neutron-capture process. This sta…

astro-ph.GA2023★ 1 cited

GHOST Commissioning Science Results II: a very metal-poor star witnessing the early Galactic assembly

Federico Sestito, Christian R. Hayes, Kim A. Venn +25

This study focuses on Pristine (hereafter P180956, ), a star selected from the Pristine Inner Galaxy Survey (PIGS), and followed-up…

astro-ph.GA2023

Towards an automatic approach to modelling the circumgalactic medium: new tools for mock making and fitting of metal profiles in large surveys

Alessia Longobardi, Matteo Fossati, Michele Fumagalli +6

We present two new tools for studying and modelling metal absorption lines in the circumgalactic medium. The first tool, dubbed ``NMF Profile Maker'' (NMFPM), uses a non-negativ…

astro-ph.GA2023★ 3 cited

GHOST Commissioning Science Results: Identifying a new chemically peculiar star in Reticulum II

Christian R. Hayes, Kim A. Venn, Fletcher Waller +79

The Gemini High-resolution Optical SpecTrograph (GHOST) is the newest high resolution spectrograph to be developed for a large aperture telescope, recently deployed and commissione…

astro-ph.GA2023★ 25 cited

Evidence of First Stars-enriched Gas in High-redshift Absorbers

A. Saccardi, S. Salvadori, V. D'Odorico +6

The first stars were born from chemically pristine gas. They were likely massive, and thus they rapidly exploded as supernovae, enriching the surrounding gas with the first heavy e…