Publications associées à MAGAZ3NE: Massive, Extremely Dusty Galaxies at <i>z</i> ∼ 2 Lead to Photometric Overestimation of Number Densities of the Most Massive Galaxies at 3 < <i>z</i> < 4

Publications associées (12)

You Shall Not Pass! The Propagation of Low-/Moderate-powered Jets Through a Turbulent Interstellar Medium

Michaela Hirschmann, Marion Nancy Amandine Farcy

Feedback from black-hole-powered jets has been invoked in many cosmological simulations to regulate star formation and quench galaxies. Despite this, observational evidence of how jets might be able to affect their hosts remains scarce, especially for low- ...

IOP Publishing Ltd2025

Suppressing the sample variance of DESI-like galaxy clustering with fast simulations

Andrei Variu

Ongoing and upcoming galaxy redshift surveys, such as the Dark Energy Spectroscopic Instrument (DESI) survey, will observe vast regions of sky and a wide range of redshifts. In order to model the observations and address various systematic uncertainties, N ...

IOP Publishing Ltd2025

Euclid: Detecting Solar System objects in Euclid images and classifying them using Kohonen self-organising maps

Frédéric Courbin, Georges Meylan, Aurélien Thomas Mathieu Verdier

The ESA Euclid mission will survey more than 14 000 deg2 of the sky in visible and near-infrared wavelengths, mapping the extragalactic sky to constrain our cosmological model of the Universe. Although the survey focusses on regions further than 15 from th ...

2025

The Origins of Gas Accreted by Supermassive Black Holes: The Importance of Recycled Gas

Michaela Hirschmann

We investigate the fueling mechanisms of supermassive black holes (SMBHs) by analyzing 10 zoom-in cosmological simulations of massive galaxies, with stellar masses 1011-12 M circle dot and SMBH masses 108.9-9.7 M circle dot at z = 0, featuring various majo ...

Iop Publishing Ltd2024

Silicon Isotopic Composition of Mainstream Presolar SiC Grains Revisited: The Impact of Nuclear Reaction Rate Uncertainties

Reto Georg Trappitsch

Presolar grains are stardust particles that condensed in the ejecta or in the outflows of dying stars and can today be extracted from meteorites. They recorded the nucleosynthetic fingerprint of their parent stars and thus serve as valuable probes of these ...

IOP Publishing Ltd2024

Non-linear magnetic buoyancy instability and turbulent dynamo

Abhijit Bhausaheb Bendre

Stratified discs with strong horizontal magnetic fields, are susceptible to magnetic buoyancy instability (MBI). Modifying the magnetic field and gas distributions, this can play an important role in galactic evolution. The MBI and the Parker instability, ...

Oxford Univ Press2024

Overview of the Fiber System for the Dark Energy Spectroscopic Instrument

Jiaxi Yu

The Dark Energy Spectroscopic Instrument (DESI) is a revolutionary instrument designed for precise measurements of cosmic distances and the investigation of dark energy. DESI utilizes 5000 optical fibers to simultaneously measure the spectra of distant obj ...

2024

On the influence of halo mass accretion history on galaxy properties and assembly bias

Ginevra Favole

Halo assembly bias is the secondary dependence of the clustering of dark matter haloes on their assembly histories at fixed halo mass. This established dependence is expected to manifest itself on galaxy clustering, a potential effect commonly known as gal ...

OXFORD UNIV PRESS2021

EUCLID: FORECASTS FOR K-CUT 3 × 2 POINT STATISTICS

Georges Meylan

Modelling uncertainties at small scales, i.e. high k in the power spectrum P (k), due to baryonic feedback, nonlinear structure growth and the fact that galaxies are biased tracers poses a significant obstacle to fully leverage the constraining power of th ...

Maynooth University2021

New constraints on the faint end of the UV luminosity function at z∼ 7-8 using the gravitational lensing of the hubble frontier fields cluster A2744

Jean-Paul Richard Kneib, Hakim Atek, Benjamin Yvan Alexandre Clement

Exploiting the power of gravitational lensing, the Hubble Frontier Fields (HFF) program aims at observing six massive galaxy clusters to explore the distant universe far beyond the limits of blank field surveys. Using the complete Hubble Space Telescope ob ...

American Astronomical Society2015

Measuring galaxy [OII] emission line doublet with future ground-based wide-field spectroscopic surveys (Research Note)

Jean-Paul Richard Kneib, David Schlegel

The next generation of wide-field spectroscopic redshift surveys will map the large-scale galaxy distribution in the redshift range 0.7

EDP Sciences2013

Long-Term Monitoring Of Bright Blazars With A Dedicated Cherenkov Telescope

Mathieu Ribordy, Thomas Günther Bretz

Flaring activity of Active Galactic Nuclei (AGN) in VHE gamma-ray astronomy is observed on timescales from minutes to years and can be explained either by the interaction of relativistic jets with the surrounding material or by imprints of the central engi ...

2009