activity
20232026
most citedProbing the early Milky Way with GHOST spectra of an extremely metal-poor star in the Galactic disk

17 citations · 25 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.IM2026

GOATS: The next generation software infrastructure for time-domain astronomy at Gemini/NOIRLab. Application to alerts from Vera C. Rubin Observatory's Legacy Survey of Space and Time

Monika Soraisam, Louis Avner, Miguel Gómez +38

Time-domain and multimessenger astronomy (MMA/TDA) targets demand rapid-response follow-up observations. In many cases, it is the only way to make discoveries and advance our under…

astro-ph.EP2025★ 6 cited

A Time-Resolved High-Resolution Spectroscopic Analysis of Ionized Calcium and Dynamical Processes in the Ultra-Hot Jupiter HAT-P-70 b

Adam B. Langeveld, Emily K. Deibert, Mitchell E. Young +5

We present the first transmission spectroscopy study of an exoplanet atmosphere with the high-resolution mode of the new Gemini High-resolution Optical SpecTrograph (GHOST) instrum…

astro-ph.IM2024

GHOST Reduced Data Products for the Gemini Observatory Community and Beyond

Vinicius M. Placco, David Herrera, Brian M. Merino +13

The Gemini High-resolution Optical SpecTrograph (GHOST) at Gemini South started regular queue operations in early 2024, bringing a long-sought open-access capability to the astrono…

astro-ph.EP2024

High-Resolution Dayside Spectroscopy of WASP-189b: Detection of Iron during the GHOST/Gemini South System Verification Run

Emily K. Deibert, Adam B. Langeveld, Mitchell E. Young +30

With high equilibrium temperatures and tidally locked rotation, ultra-hot Jupiters (UHJs) are unique laboratories within which to probe extreme atmospheric physics and chemistry. I…

astro-ph.GA2024

GHOST Commissioning Science Results III: Characterizing an iron-poor damped Lyman system

Trystyn A. M. Berg, Christian R. Hayes, Stefano Cristiani +20

The Gemini High-resolution Optical SpecTrograph (GHOST) is a new echelle spectrograph available on the Gemini-South telescope as of Semester 2024A. We present the first high resolu…

astro-ph.IM2024

The Science Performance of the Gemini High Resolution Optical Spectrograph

Alan W. McConnachie, Christian R. Hayes, J. Gordon Robertson +46

The Gemini High Resolution Optical Spectrograph (GHOST) is a fiber-fed spectrograph system on the Gemini South telescope that provides simultaneous wavelength coverage from 348 - 1…

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.IM2023

DRAGONS -- A Quick Overview

Kathleen Labrie, Chris Simpson, Ricardo Cardenes +10

DRAGONS (Data Reduction for Astronomy from Gemini Observatory North and South) is a platform for the reduction and processing of astronomical data. The Python-based, open-source pa…

astro-ph.HE2023★ 2 cited

SN 2022jox: An extraordinarily ordinary Type II SN with Flash Spectroscopy

Jennifer E. Andrews, Jeniveve Pearson, Griffin Hosseinzadeh +20

We present high cadence optical and ultraviolet observations of the Type II supernova (SN), SN 2022jox which exhibits early spectroscopic high ionization flash features of \ion{H}{…