Publications associées à Simulations of cluster ultra-diffuse galaxies in MOND

Publications associées (14)

Unveiling the Dark Side of Ultraviolet/Optical Bright Galaxies: Optically Thick Dust Absorption

Over the past decades, a population of galaxies invisible in optical/near-infrared (NIR), but bright at longer wavelengths, have been identified through color selections. These so-called optically faint/dark galaxies are considered to be massive quiescent ...

2025

Euclid preparation: LXI. Cosmic Dawn Survey: ' Pre-launch' multiwavelength catalogues for Euclid Deep Field North and Euclid Deep Field Fornax

Frédéric Courbin, Georges Meylan

The Cosmic Dawn Survey (DAWN survey) provides multiwavelength (UV/optical to mid-IR) data across the combined 59 deg2 of the Euclid Deep and Auxiliary fields (EDFs and EAFs). In this work, the first public data release from the DAWN survey is presented. Th ...

2025

An LBT view of the co-rotating group of galaxies around NGC2750: Deep imaging and new satellite candidates

Olivia Mueller, Salvatore Taibi

Context. Some galaxies such as the Milky Way and Andromeda display coherently rotating satellite planes, posing tensions with cosmological simulations. NGC2750 has emerged as an additional candidate system hosting a co-rotating group of galaxies. Aims. Thi ...

2025

The formation of supermassive black holes from Population III.1 seeds. III. Galaxy evolution and black hole growth from semi-analytic modelling

Michaela Hirschmann

We present an implementation of Pop III.1 seeding of supermassive black holes (SMBHs) in a theoretical model of galaxy formation and evolution to assess the growth of the SMBH population and the properties of the host galaxies. The model of Pop III.1 seedi ...

OXFORD UNIV PRESS2024

Euclid preparation XLIII. Measuring detailed galaxy morphologies for Euclid with machine learning

Frédéric Courbin, Georges Meylan, Austin Chandler Peel

The Euclid mission is expected to image millions of galaxies at high resolution, providing an extensive dataset with which to study galaxy evolution. Because galaxy morphology is both a fundamental parameter and one that is hard to determine for large samp ...

2024

Do stars still form in molecular gas within CO-dark dwarf galaxies?

Robin Gopala Tress

In the Milky Way and other main-sequence galaxies, stars form exclusively in molecular gas, which is traced by CO emission. However, low-metallicity dwarf galaxies are often 'CO-dark' in the sense that CO emission is not observable even at the high resolut ...

OXFORD UNIV PRESS2024

Tip of the Red Giant Branch Distances with JWST: An Absolute Calibration in NGC 4258 and First Applications to Type Ia Supernova Hosts

Richard Irving Anderson

The tip of the red giant branch (TRGB) allows for the measurement of precise and accurate distances to nearby galaxies based on the brightest ascent of low-mass red giant branch stars before they undergo the helium flash. With the advent of JWST, there is ...

Iop Publishing Ltd2024

VERTICO and IllustrisTNG: The Spatially Resolved Effects of Environment on Galactic Gas

Yannick Michael Bahé

It has been shown in previous publications that the TNG100 simulation quantitatively reproduces the observed reduction in each of the total atomic and total molecular hydrogen gas for galaxies within massive halos, i.e., dense environments. In this Letter, ...

2023

Kinematics of Galactic Centre clouds shaped by shear-seeded solenoidal turbulence

Robin Gopala Tress

The Central Molecular Zone (CMZ; the central & SIM;500 pc of the Galaxy) is a kinematically unusual environment relative to the Galactic disc, with high-velocity dispersions and a steep size-linewidth relation of the molecular clouds. In addition, the CMZ ...

2023

The Galaxy in your preferred colours: Synthetic photometry from Gaia low-resolution spectra

Richard Irving Anderson

Gaia Data Release 3 provides novel flux-calibrated low-resolution spectrophotometry for similar or equal to 220 million sources in the wavelength range 330 nm

EDP SCIENCES S A2023

The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: cosmological implications from multitracer BAO analysis with galaxies and voids

Jean-Paul Richard Kneib, Cheng Zhao, Huanyuan Shan, Jiaxi Yu, Daniel Felipe Forero Sanchez, Amélie Tamone, Andrei Variu

We construct cosmic void catalogues with the DIVE void finder upon SDSS BOSS DR12 and eBOSS DR16 galaxy samples with BAO reconstruction, and perform a joint BAO analysis using different types of galaxies and the corresponding voids. The BAO peak is evident ...

OXFORD UNIV PRESS2022

MegaMapper: Concept and Optical Design for a 6.5 m Aperture Massively Multiplexed Spectroscopic Facility

Jean-Paul Richard Kneib, Mohamed Bouri, Ricardo Jorge Araùjo Pereira, Markus Josy Thurneysen

MegaMapper is a 6.5m Magellan-like telescope fitted with a wide-field-corrector (WFC) and atmospheric-dispersion-corrector (ADC) that delivers a 3. diameter corrected field-of-view. The telescope's focal surface is populated by similar to 25, 000 robotic f ...

SPIE-INT SOC OPTICAL ENGINEERING2022

Star formation histories, extinction, and dust properties of strongly lensed z similar to 1.5-3 star-forming galaxies from the Herschel Lensing Survey

Jean-Paul Richard Kneib

Context. Multi-wavelength, optical to IR/submm observations of strongly lensed galaxies identified by the Herschel Lensing Survey are used to determine the physical properties of high-redshift star-forming galaxies close to or below the detection limits of ...

EDP Sciences2014

Slit and integral-field optical spectroscopy of the enigmatic quasar HE 0450-2958

Frédéric Courbin

Context. Interest in the quasar HE 0450-2958 arose following the publication of the non-detection of its expected massive host, leading to various interpretations. ...

2008