Roland Bacon
YOU?
Author Swipe
View article: MusE GAs FLOw and Wind (MEGAFLOW)
MusE GAs FLOw and Wind (MEGAFLOW) Open
We present the design, rationale, properties, and catalogues of the MusE Gas FLOw and Wind survey (MEGAFLOW) of cool gaseous halos of z ≃ 1.0 galaxies, using low-ionisation Mg II absorption systems. The survey consists of 22 quasar fields …
View article: The MUSE Extremely Deep Field: Classifying the Spectral Shapes of Lya Emitting Galaxies
The MUSE Extremely Deep Field: Classifying the Spectral Shapes of Lya Emitting Galaxies Open
The Hydrogen Lyman-alpha (Lya) line shows a large variety of shapes which is caused by factors at different scales, from the interstellar medium to the intergalactic medium. This work aims to provide a systematic inventory and classificati…
View article: Characterization of two ultraviolet–blue volume-phase holographic gratings based on dichromated gelatin and photopolymer recording materials
Characterization of two ultraviolet–blue volume-phase holographic gratings based on dichromated gelatin and photopolymer recording materials Open
International audience
View article: From TIGER to WST: scientific impact of four decades of developments in integral field spectroscopy
From TIGER to WST: scientific impact of four decades of developments in integral field spectroscopy Open
This paper traces the 37 years of my career dedicated to the development of integral field spectroscopy (IFS), highlighting significant milestones and advancements. This extensive journey encompasses three generations of IFS: the initial p…
View article: Spatially resolved spectroscopic analysis of Ly<i>α</i> haloes
Spatially resolved spectroscopic analysis of Ly<i>α</i> haloes Open
The extended Ly α haloes (LAHs) have been found to be prevalent around high-redshift star-forming galaxies. However, the origin of the LAHs is still a subject of debate. The spatially resolved analysis of Ly α profiles provides an importan…
View article: The Blue Multi Unit Spectroscopic Explorer (BlueMUSE) on the VLT: science drivers and overview of instrument design (Erratum)
The Blue Multi Unit Spectroscopic Explorer (BlueMUSE) on the VLT: science drivers and overview of instrument design (Erratum) Open
International audience
View article: WST - Widefield Spectroscopic Telescope: motivation, science drivers and top level requirements for a new dedicated facility
WST - Widefield Spectroscopic Telescope: motivation, science drivers and top level requirements for a new dedicated facility Open
In this paper, we describe the wide-field spectroscopic survey telescope (WST) project. WST is a 12-metre wide-field spectroscopic survey telescope with simultaneous operation of a large field-of-view (3 sq. degree), high-multiplex (20,000…
View article: WST: Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield multi-object and integral field spectroscopy
WST: Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield multi-object and integral field spectroscopy Open
International audience
View article: The Blue Multi Unit Spectroscopic Explorer (BlueMUSE) on the VLT: characterization of two VPHG prototypes based on dichromated gelatin and photopolymer recording materials
The Blue Multi Unit Spectroscopic Explorer (BlueMUSE) on the VLT: characterization of two VPHG prototypes based on dichromated gelatin and photopolymer recording materials Open
Volume-phase holographic gratings (VPHGs) are widely used in astronomical spectrographs due to their adaptability and high diffraction efficiency. Most VPHGs in operation use dichromated gelatin as a recording material, whose performance i…
View article: The Blue Multi Unit Spectroscopic Explorer (BlueMUSE) on the VLT: characterization of two VPHG prototypes based on dichromated gelatin and photopolymer recording materials
The Blue Multi Unit Spectroscopic Explorer (BlueMUSE) on the VLT: characterization of two VPHG prototypes based on dichromated gelatin and photopolymer recording materials Open
Volume-phase holographic gratings (VPHGs) are widely used in astronomical\nspectrographs due to their adaptability and high diffraction efficiency. Most\nVPHGs in operation use dichromated gelatin as a recording material, whose\nperformanc…
View article: WST -- Widefield Spectroscopic Telescope: design of a new 12m class telescope dedicated to widefield Multi-object and Integral Field Spectroscopy
WST -- Widefield Spectroscopic Telescope: design of a new 12m class telescope dedicated to widefield Multi-object and Integral Field Spectroscopy Open
The Wide-Field Spectroscopic Telescope (WST) is a concept for a 12-m class seeing-limited telescope providing two concentric fields of view for simultaneous Multi-Object Spectroscopy and Integral Field Spectroscopy. The specified wavelengt…
View article: WST -- Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield Multi-object and Integral Field Spectroscopy
WST -- Widefield Spectroscopic Telescope: addressing the instrumentation challenges of a new 12m class telescope dedicated to widefield Multi-object and Integral Field Spectroscopy Open
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) field of view and enable simultaneous Multi-object (> 20,00…
View article: Median surface-brightness profiles of Lyman-<i>α</i> haloes in the MUSE Extremely Deep Field
Median surface-brightness profiles of Lyman-<i>α</i> haloes in the MUSE Extremely Deep Field Open
We present the median surface brightness profiles of diffuse Ly α haloes (LAHs) around star-forming galaxies by stacking 155 spectroscopically confirmed Ly α emitters (LAEs) at 3 < z < 4 in the MUSE Extremely Deep Field (MXDF) with a media…
View article: WST -- Widefield Spectroscopic Telescope: Motivation, science drivers and top-level requirements for a new dedicated facility
WST -- Widefield Spectroscopic Telescope: Motivation, science drivers and top-level requirements for a new dedicated facility Open
In this paper, we describe the wide-field spectroscopic survey telescope (WST) project. WST is a 12-metre wide-field spectroscopic survey telescope with simultaneous operation of a large field-of-view (3 sq. degree), high-multiplex (20,000…
View article: The Wide-field Spectroscopic Telescope (WST) Science White Paper
The Wide-field Spectroscopic Telescope (WST) Science White Paper Open
The Wide-field Spectroscopic Telescope (WST) is proposed as a new facility dedicated to the efficient delivery of spectroscopic surveys. This white paper summarises the initial concept as well as the corresponding science cases. WST will f…
View article: Large-scale excess H <scp>i</scp> absorption around <i>z</i> ≈ 4 galaxies detected in a background galaxy spectrum in the MUSE eXtremely deep field
Large-scale excess H <span>i</span> absorption around <i>z</i> ≈ 4 galaxies detected in a background galaxy spectrum in the MUSE eXtremely deep field Open
Observationally mapping the relation between galaxies and the intergalactic medium (IGM) is of key interest for studies of cosmic reionization. Diffuse hydrogen gas has typically been observed in H i Lyman-α (Lyα) absorption in the spectra…
View article: Possible signatures of a cold-flow disk from muse using a z ~ to 1 galaxy-quasar pair toward SDSS J1422-0001
Possible signatures of a cold-flow disk from muse using a z ~ to 1 galaxy-quasar pair toward SDSS J1422-0001 Open
We use a background quasar to detect the presence of circumgalactic gas around a z = 0.91 low-mass star-forming galaxy. Data from the new Multi Unit Spectroscopic Explorer (MUSE) on the Very Large Telescope show that the galaxy has a dust-…
View article: MAGIC: MUSE gAlaxy Groups In COSMOS – A survey to probe the impact of environment on galaxy evolution over the last 8 Gyr
MAGIC: MUSE gAlaxy Groups In COSMOS – A survey to probe the impact of environment on galaxy evolution over the last 8 Gyr Open
Context. Galaxies migrate along filaments of the cosmic web from small groups to clusters, which creates the appearance that the evolution of their properties speeds up as environments get denser. Aims. We introduce the M USE gAlaxy Groups…
View article: Bipolar outflows out to 10 kpc for massive galaxies at redshift z ≈ 1
Bipolar outflows out to 10 kpc for massive galaxies at redshift z ≈ 1 Open
View article: MAGIC: Muse gAlaxy Groups In Cosmos -- A survey to probe the impact of environment on galaxy evolution over the last 8 Gyr
MAGIC: Muse gAlaxy Groups In Cosmos -- A survey to probe the impact of environment on galaxy evolution over the last 8 Gyr Open
We introduce the MUSE gAlaxy Groups in COSMOS (MAGIC) survey, which was built to study the impact of environment on galaxy evolution over the last 8 Gyr. It consists of 17 MUSE fields targeting 14 massive structures at intermediate redshif…
View article: JWST/NIRSpec Measurements of Extremely Low Metallicities in High Equivalent Width Lyα Emitters
JWST/NIRSpec Measurements of Extremely Low Metallicities in High Equivalent Width Lyα Emitters Open
Deep Very Large Telescope/MUSE optical integral field spectroscopy has recently revealed an abundant population of ultra-faint galaxies ( M UV ≈ −15; 0.01 L ⋆ ) at z = 2.9−6.7 due to their strong Ly α emission with no detectable continuum.…
View article: Detector system challenges of the wide‐field spectroscopic survey telescope (WST)
Detector system challenges of the wide‐field spectroscopic survey telescope (WST) Open
The wide‐field spectroscopic survey telescope (WST) is proposed to become the next large optical/near infrared facility for the European southern observatory (ESO) once the extremely large telescope (ELT) has become operational. While the …
View article: Spatially-resolved Spectroscopic Analysis of Ly$α$ Haloes: Radial Evolution of the Ly$α$ Line Profile out to 60 kpc
Spatially-resolved Spectroscopic Analysis of Ly$α$ Haloes: Radial Evolution of the Ly$α$ Line Profile out to 60 kpc Open
The extended Ly$α$ haloes (LAHs) have been found to be prevalent around high-redshift star-forming galaxies. However, the origin of the LAHs is still a subject of debate. Spatially resolved analysis of Ly$α$ profiles provides an important …
View article: Median Surface Brightness Profiles of Lyman-$α$ Haloes in the MUSE Extremely Deep Field
Median Surface Brightness Profiles of Lyman-$α$ Haloes in the MUSE Extremely Deep Field Open
We present the median surface brightness profiles of diffuse Ly$α$ haloes (LAHs) around star-forming galaxies by stacking 155 spectroscopically confirmed Ly$α$ emitters (LAEs) at 3
View article: Detector System Challenges of the Wide-field Spectroscopic Survey Telescope (WST)
Detector System Challenges of the Wide-field Spectroscopic Survey Telescope (WST) Open
The wide-field spectroscopic survey telescope (WST) is proposed to become the next large optical/near infrared facility for the European Southern Observatory (ESO) once the Extremely Large Telescope (ELT) has become operational. While the …
View article: Large-scale excess HI absorption around $z\approx4$ galaxies detected in a background galaxy spectrum in the MUSE eXtremely Deep Field
Large-scale excess HI absorption around $z\approx4$ galaxies detected in a background galaxy spectrum in the MUSE eXtremely Deep Field Open
Observationally mapping the relation between galaxies and the intergalactic medium (IGM) is of key interest for studies of cosmic reionization. Diffuse hydrogen gas has typically been observed in HI Lyman-$α$ (Ly$α$) absorption in the spec…
View article: JWST/NIRSpec Measurements of Extremely Low Metallicities in High Equivalent Width Lyman-$α$ Emitters
JWST/NIRSpec Measurements of Extremely Low Metallicities in High Equivalent Width Lyman-$α$ Emitters Open
Deep VLT/MUSE optical integral field spectroscopy has recently revealed an abundant population of ultra-faint galaxies ($M_{UV} \approx -15$; 0.01 $L_{\star}$) at $z=$2.9$-$6.7 due to their strong Lyman-$α$ emission with no detectable cont…
View article: Observational Evidence of the Prevalence of Bipolar Galactic Outflows out to 10 kpc at z ≈ 1 for Massive Galaxies
Observational Evidence of the Prevalence of Bipolar Galactic Outflows out to 10 kpc at z ≈ 1 for Massive Galaxies Open
Galactic outflows are believed to play a critical role in the evolution of galaxies by regulating their mass build-up and star formation [1]. These outflows tend to form bipolar shapes above and below the galactic planes and extend well in…
View article: Scientific Highlights from Ten Years of the MUSE Collaboration
Scientific Highlights from Ten Years of the MUSE Collaboration Open
We present the scientific highlights of ten years of exploitation of the Multi Unit Spectroscopic Explorer (MUSE) Guaranteed Time Observations performed in the context of the MUSE collaboration. These ten years have been particularly rich …
View article: The MUSE<i>Hubble</i>Ultra Deep Field surveys: Data release II
The MUSE<i>Hubble</i>Ultra Deep Field surveys: Data release II Open
We present the second data release of the MUSE Hubble Ultra-Deep Field surveys, which includes the deepest spectroscopic survey ever performed. The MUSE data, with their 3D content, amazing depth, wide spectral range, and excellent spatial…