Publications associées à Euclid preparation LXIX. The impact of relativistic redshift-space distortions on two-point clustering statistics from the Euclid wide spectroscopic survey

Publications associées (13)

Molecular gas and dust properties in z > 7 quasar hosts

Observational campaigns hunting the elusive reservoirs of cold gas in the host galaxies of quasars at the epoch of reionization (EoR) are crucial for studying the formation and evolution of the first massive systems at early epochs. We present new Northern ...

EDP SCIENCES S A2025

Euclid: Early Release Observations – The surface brightness and colour profiles of the far outskirts of galaxies in the Perseus cluster

Georges Meylan

The Perseus field captured by Euclid as part of its Early Release Observations provides a unique opportunity to study cluster environment ranging from outskirts to dense regions. Leveraging unprecedented optical and near-infrared depths, we investigate the ...

2025

The Spatial Distribution of Globular Cluster Systems in Early-type Galaxies: Estimation Procedure and Catalog of Properties for Globular Cluster Systems Observed with Deep Imaging Surveys

Oliver Müller

We present an analysis of the spatial distribution of globular cluster (GC) systems of 118 nearby early-type galaxies in the Next Generation Virgo Cluster Survey and Mass Assembly of early-Type GaLAxies with their fine Structures survey programs, which bot ...

2025

Tdcosmo Xvii. New Time Delays in 22 Lensed Quasars From Optical Monitoring with the Eso-vst 2.6m and Mpg 2.2m Telescopes

Frédéric Courbin, Vivien François Bonvin, Cameron Alexander Campbell Lemon, Aymeric Alexandre Galan, Eric Gérard Guy Paic, Frédéric Dux, Favio César Neira Diaz

We present new time delays, the main ingredient of time delay cosmography, for 22 lensed quasars resulting from high-cadence r-band monitoring on the 2.6 m ESO VLT Survey Telescope and Max-Planck-Gesellschaft 2.2 m telescope. Each lensed quasar was typical ...

EDP Sciences SA2025

RUBIES: A complete census of the bright and red distant Universe with JWST/NIRSpec

Michaela Hirschmann

We present the Red Unknowns: Bright Infrared Extragalactic Survey (RUBIES) providing JWST/NIRSpec spectroscopy of red sources selected across ∼150 arcmin2 from public JWST/NIRCam imaging in the UDS and EGS fields. The novel observing strategy of RUBIES off ...

2025

Deep learning approach for identification of Hii regions during reionization in 21-cm observations – III. image recovery

Michele Bianco, Tianyue Chen, Shreyam Parth Krishna

The low-frequency component of the upcoming Square Kilometre Array Observatory (SKA-Low) will be sensitive enough to construct 3D tomographic images of the 21-cm signal distribution during reionization. However, foreground contamination poses challenges fo ...

Oxford University Press (OUP)2025

RUBIES: JWST/NIRSpec Resolves Evolutionary Phases of Dusty Star-forming Galaxies at z ∼ 2

Michaela Hirschmann

The dearth of high-quality spectroscopy of dusty star-forming galaxies (DSFGs)-the main drivers of the assembly of dust and stellar mass at the peak of activity in the Universe-greatly hinders our ability to interpret their physical processes and evolution ...

IOP Publishing Ltd2025

Measurement of the Branching Fractions of the Decays Λc+→ Λks0k+, Λc+ → Λks0π+, and Λc+ → Λk*+

Yunxuan Song

Studies are performed of the Cabibbo-favored decay Lambda(+)(c) -> Lambda(KSK+)-K-0 and the singly Cabibbosuppressed decay Lambda(+)(c) -> Lambda K-S(0)pi(+), based on a sample of e(+)e(-) collision data, corresponding to an integrated luminosity of 4.5 fb ...

AMER PHYSICAL SOC2025

Sparse portfolio selection via topological data analysis based clustering

Anubha Goel, Damir Filipovic, Puneet Pasricha

Informa UK Limited2025

Euclid preparation XLVI. The near-infrared background dipole experiment with Euclid

Frédéric Courbin, Georges Meylan

Verifying the fully kinematic nature of the long-known cosmic microwave background (CMB) dipole is of fundamental importance in cosmology. In the standard cosmological model with the Friedman–Lemaitre–Robertson–Walker (FLRW) metric from the inflationary ex ...

2024

Euclid: Identifying the reddest high-redshift galaxies in the Euclid Deep Fields with gradient-boosted trees

Frédéric Courbin

Context. ALMA observations show that dusty, distant, massive ( M similar to & 1011 M fi) galaxies usually have a remarkable star-formation activity, contributing of the order of 25% of the cosmic star-formation rate density at z similar to 3-5, and up to 3 ...

EDP SCIENCES S A2024

Not-so-little Red Dots: Two Massive and Dusty Starbursts at z ∼ 5-7 Pushing the Limits of Star Formation Discovered by JWST in the COSMOS-Web Survey

Michaela Hirschmann

We present the properties of two candidate massive (M ⋆ ∼ 1011 M ⊙) and dusty (A v > 2.5 mag) galaxies at z = 5-7 in the first 0.28 deg2 of the COSMOS-Web survey. One object is spectroscopically confirmed at z spec = 5.051, while the other has a robust z p ...

2024

Intermediate mass black hole feedback in dwarf galaxy simulations with a resolved ISM and accurate nuclear stellar dynamics

Michaela Hirschmann

Recent observations have established that dwarf galaxies can host black holes of intermediate mass (IMBH, 100 M < MIMBH

2024