Short-hard gamma-ray bursts

E Nakar - Physics Reports, 2007 - Elsevier
Two types of gamma-ray bursts (GRBs) are observed: short-duration hard spectrum GRBs
and long-duration soft spectrum GRBs. For many years long GRBs were the focus of intense …

Masses of galaxy clusters from gravitational lensing

H Hoekstra, M Bartelmann, H Dahle, H Israel… - Space Science …, 2013 - Springer
Despite consistent progress in numerical simulations, the observable properties of galaxy
clusters are difficult to predict ab initio. It is therefore important to compare both theoretical …

A highly magnified star at redshift 6.2

B Welch, D Coe, JM Diego, A Zitrin, E Zackrisson… - Nature, 2022 - nature.com
Galaxy clusters magnify background objects through strong gravitational lensing. Typical
magnifications for lensed galaxies are factors of a few but can also be as high as tens or …

Dark Energy Survey year 1 results: Cosmological constraints from galaxy clustering and weak lensing

TMC Abbott, FB Abdalla, A Alarcon, J Aleksić, S Allam… - Physical Review D, 2018 - APS
We present cosmological results from a combined analysis of galaxy clustering and weak
gravitational lensing, using 1321 deg 2 of griz imaging data from the first year of the Dark …

KiDS+ VIKING-450: Cosmic shear tomography with optical and infrared data

H Hildebrandt, F Köhlinger, JL Van den Busch… - Astronomy & …, 2020 - aanda.org
We present a tomographic cosmic shear analysis of the Kilo-Degree Survey (KiDS)
combined with the VISTA Kilo-Degree Infrared Galaxy Survey. This is the first time that a full …

Dark Energy Survey Year 1 Results: Cosmological constraints from cluster abundances and weak lensing

TMC Abbott, M Aguena, A Alarcon, S Allam, S Allen… - Physical Review D, 2020 - APS
We perform a joint analysis of the counts and weak lensing signal of redMaPPer clusters
selected from the Dark Energy Survey (DES) Year 1 dataset. Our analysis uses the same …

Panic! at the Disks: First Rest-frame Optical Observations of Galaxy Structure at z> 3 with JWST in the SMACS 0723 Field

L Ferreira, N Adams, CJ Conselice… - The Astrophysical …, 2022 - iopscience.iop.org
We present early results regarding the morphological and structural properties of galaxies
seen with the James Webb Space Telescope (JWST) at z> 3 in the Early Release …

Galaxy build-up in the first 1.5 Gyr of cosmic history: insights from the stellar mass function at z ~ 4–9 from JWST NIRCam observations

A Weibel, PA Oesch, L Barrufet… - Monthly Notices of …, 2024 - academic.oup.com
Combining the public JWST/NIRCam imaging programs CEERS, PRIMER, and JADES,
spanning a total area of, we obtain a sample of 30 000 galaxies at that allows us to perform …

The evolution of galaxy number density at z< 8 and its implications

CJ Conselice, A Wilkinson, K Duncan… - The Astrophysical …, 2016 - iopscience.iop.org
The evolution of the number density of galaxies in the universe, and thus also the total
number of galaxies, is a fundamental question with implications for a host of astrophysical …

Constraining the Neutral Fraction of Hydrogen in the IGM at Redshift 7.5

A Hoag, M Bradač, K Huang, C Mason… - The Astrophysical …, 2019 - iopscience.iop.org
We present a large spectroscopic campaign with Keck/Multi-Object Spectrometer for
InfraRed Exploration (MOSFIRE) targeting Lyα emission (Lyα) from intrinsically faint Lyman …