343 citations · 906 across the 19 of their papers we have counts for
19 papers
A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE): JWST Discovers an Overdensity around a Metal Absorption-selected Galaxy at
Yunjing Wu, Feige Wang, Zheng Cai +27
The launch of opens a new window for studying the connection between metal-line absorbers and galaxies at the end of the Epoch of Reionization (EoR). Previous studies…
GTC Follow-up Observations of Very Metal-Poor Star Candidates from DESI
Carlos Allende Prieto, David S. Aguado, Jonay I. González Hernández +48
The observations from the Dark Energy Spectroscopic Instrument (DESI) will significantly increase the numbers of known extremely metal-poor stars by a factor of ~ 10, improving the…
The Early Data Release of the Dark Energy Spectroscopic Instrument
DESI Collaboration, A. G. Adame, J. Aguilar +266
The Dark Energy Spectroscopic Instrument (DESI) completed its five-month Survey Validation in May 2021. Spectra of stellar and extragalactic targets from Survey Validation constitu…
Validation of the Scientific Program for the Dark Energy Spectroscopic Instrument
DESI Collaboration, A. G. Adame, J. Aguilar +261
The Dark Energy Spectroscopic Instrument (DESI) was designed to conduct a survey covering 14,000 deg over five years to constrain the cosmic expansion history through precise m…
Detecting and Characterizing Mg II absorption in DESI Survey Validation Quasar Spectra
Lucas Napolitano, Agnesh Pandey, Adam D. Myers +33
We present findings of the detection of Magnesium II (Mg II, λ = 2796, 2803 Å) absorbers from the early data release of the Dark Energy Spectroscopic Instrument (DESI). DESI is pro…
A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE): JWST Reveals a Filamentary Structure around a z=6.61 Quasar
Feige Wang, Jinyi Yang, Joseph F. Hennawi +56
We present the first results from the JWST ASPIRE program (A SPectroscopic survey of biased halos In the Reionization Era). This program represents an imaging and spectroscopic sur…
A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE): A First Look at the Rest-frame Optical Spectra of Quasars Using JWST
Jinyi Yang, Feige Wang, Xiaohui Fan +53
Studies of rest-frame optical emission in quasars at have historically been limited by the wavelengths accessible by ground-based telescopes. The James Webb Space Telescope (…
DESI survey validation data in the COSMOS/HSC field: Cool gas trace main sequence star-forming galaxies at the cosmic noon
Siwei Zou, Linhua Jiang, Zheng Cai +23
We present the first result in exploring the gaseous halo and galaxy correlation using the Dark Energy Spectroscopic Instrument (DESI) survey validation data in the Cosmic Evolutio…
The Mass-Metallicity Relation of Dwarf Galaxies at Cosmic Noon from JWST Observations
Mingyu Li, Zheng Cai, Fuyan Bian +13
We present a study of the mass-metallicity relation (MZR) of 51 dwarf galaxies () at from the Abell 2744 and SMACS J0723-3732…
Metal-Enriched Neutral Gas Reservoir around a Strongly-lensed, Low-mass Galaxy at Identified by JWST/NIRISS and VLT/MUSE
Xiaojing Lin, Zheng Cai, Siwei Zou +19
Direct observations of low-mass, low-metallicity galaxies at provide an indispensable opportunity for detailed inspection of the ionization radiation, gas flow, and met…
The DESI Survey Validation: Results from Visual Inspection of the Quasar Survey Spectra
David M. Alexander, Tamara M. Davis, E. Chaussidon +69
A key component of the Dark Energy Spectroscopic Instrument (DESI) survey validation (SV) is a detailed visual inspection (VI) of the optical spectroscopic data to quantify key sur…
The Identification of a Dusty Multiarm Spiral Galaxy at with JWST and ALMA
Yunjing Wu, Zheng Cai, Fengwu Sun +13
Spiral arms serve crucial purposes in star formation and galaxy evolution. In this paper, we report the identification of A2744-DSG-, a dusty, multiarm spiral galaxy at $z=3.05…
Metallicity in Quasar Broad Line Regions at Redshift 6
Shu Wang, Linhua Jiang, Yue Shen +10
Broad line regions (BLRs) in high-redshift quasars provide crucial information of chemical enrichment in the early universe. Here we present a study of BLR metallicities in 33 quas…
Discovery of a damped Ly galaxy at z 3 towards the quasar SDSS J011852+040644
Ravi Joshi, Michele Fumagalli, Raghunathan Srianand +11
We report the detection of the host galaxy of a damped Ly system (DLA) with log N(HI) = at towards the background quasar SDSS…
Strong Mg II and Fe II Absorbers at 2.2 < z < 6.0
Siwei Zou, Linhua Jiang, Yue Shen +13
We present a study of strong intervening absorption systems in the near-IR spectra of 31 luminous quasars at . The quasar spectra were obtained with {\it Gemini} GNIRS that…
A Carbon-enhanced Lyman Limit System: Signature of the First Generation of Stars?
Siwei Zou, Patrick Petitjean, Pasquier Noterdaeme +4
We present the study of a Lyman limit system (LLS) at = 1.5441 towards quasar J134122.50+185213.9 observed with VLT X-shooter. This is a very peculiar system with str…
Near Infrared spectroscopic observations of high redshift C~{\sc i} absorbers
Siwei Zou, Patrick Petitjean, Pasquier Noterdaeme +5
We study a sample of 17 z>1.5 absorbers selected based on the presence of strong CI absorption lines in SDSS spectra and observed with the ESO-VLT spectrograph X-shooter. We derive…
A ghostly damped Ly system revealed by metal absorption lines
Hassan Fathivavsari, Patrick Petitjean, Siwei Zou +4
We report the discovery of the first 'ghostly' damped Ly absorption system (DLA), which is identified by the presence of absorption from strong low-ion species at $z_{\rm abs}=1…
The X-ray luminosity-temperature relation of a complete sample of low-mass galaxy clusters
Siwei Zou, B. J. Maughan, P. A. Giles +4
We present \Chandra\ observations of 23 galaxy groups and low-mass galaxy clusters at with a median temperature of ~2keV. The sample is a statistically complete flux-…