output
19912026
Showing 2023 · astro-ph.COShow all

21 papers · 2 filters

astro-ph.CO2023★ 35 cited

Close encounters of the primordial kind: a new observable for primordial black holes as dark matter

Tung X. Tran, Sarah R. Geller, Benjamin V. Lehmann +1

Primordial black holes (PBHs) remain a viable dark matter candidate in the asteroid-mass range. We point out that in this scenario, the PBH abundance would be large enough for at l…

astro-ph.CO2023★ 10 cited

New Light on Dark Extended Lenses with the Roman Space Telescope

William DeRocco, Nolan Smyth, Volodymyr Takhistov

The Roman Space Telescope's Galactic Bulge Time Domain Survey will constitute the most sensitive microlensing survey of the Galactic Bulge to date, opening up new opportunities to…

astro-ph.CO2023★ 5 cited

Dark Energy Survey Deep Field photometric redshift performance and training incompleteness assessment

L. Toribio San Cipriano, J. De Vicente, I. Sevilla-Noarbe +55

Context. The determination of accurate photometric redshifts (photo-zs) in large imaging galaxy surveys is key for cosmological studies. One of the most common approaches are machi…

astro-ph.CO2023★ 59 cited

First upper limits on the 21 cm signal power spectrum from cosmic dawn from one night of observations with NenuFAR

S. Munshi, F. G. Mertens, L. V. E. Koopmans +24

The redshifted 21 cm signal from neutral hydrogen is a direct probe of the physics of the early universe and has been an important science driver of many present and upcoming radio…

astro-ph.CO2023★ 19 cited

Rogue worlds meet the dark side: revealing terrestrial-mass primordial black holes with the Nancy Grace Roman Space Telescope

William DeRocco, Evan Frangipane, Nick Hamer +2

Gravitational microlensing is one of the strongest observational techniques to observe non-luminous astrophysical bodies. Existing microlensing observations provide tantalizing evi…

astro-ph.CO2023★ 1 cited

Dark Energy Survey Year 3 Results: Mis-centering calibration and X-ray-richness scaling relations in redMaPPer clusters

P. Kelly, J. Jobel, O. Eiger +76

We use Dark Energy Survey Year 3 (DES Y3) clusters with archival X-ray data from XMM-Newton and Chandra to assess the centering performance of the redMaPPer cluster finder and to m…

astro-ph.CO2023★ 9 cited

Effects of feedback-free starburst galaxies on the 21-cm signal and reionization history

Sarah Libanore, Jordan Flitter, Ely D. Kovetz +2

Different star-formation models at Cosmic Dawn produce detectable signatures in the observables of upcoming 21-cm experiments. In this work, we consider the physical scenario of fe…

astro-ph.CO2023★ 15 cited

A roadmap to cosmological parameter analysis with third-order shear statistics III: Efficient estimation of third-order shear correlation functions and an application to the KiDS-1000 data

Lucas Porth, Sven Heydenreich, Pierre Burger +2

Third-order lensing statistics contain a wealth of cosmological information that is not captured by second-order statistics. However, the computational effort for estimating such s…

astro-ph.CO2023

Building an Efficient Cluster Cosmology Software Package for Modeling Cluster Counts and Lensing

M. Aguena, O. Alves, J. Annis +60

We introduce a software suite developed for galaxy cluster cosmological analysis with the Dark Energy Survey Data. Cosmological analyses based on galaxy cluster number counts and w…

astro-ph.CO2023★ 31 cited

KiDS-1000 cosmology: Combined second- and third-order shear statistics

Pierre A. Burger, Lucas Porth, Sven Heydenreich +9

This paper performs the first cosmological parameter analysis of the KiDS-1000 data with second- and third-order shear statistics. This work builds on a series of papers that descr…

astro-ph.CO2023★ 343 cited

The Early Data Release of the Dark Energy Spectroscopic Instrument

DESI Collaboration, A. G. Adame, J. Aguilar +266

The Dark Energy Spectroscopic Instrument (DESI) completed its five-month Survey Validation in May 2021. Spectra of stellar and extragalactic targets from Survey Validation constitu…

astro-ph.CO2023★ 37 cited

The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements

Patrick L. Kelly, Steven Rodney, Tommaso Treu +28

In late 2014, four images of Supernova (SN) "Refsdal," the first known example of a strongly lensed SN with multiple resolved images, were detected in the MACS J1149 galaxy-cluster…

astro-ph.CO2023★ 131 cited

Constraints on the Hubble constant from Supernova Refsdal's reappearance

Patrick L. Kelly, Steven Rodney, Tommaso Treu +27

The gravitationally lensed Supernova Refsdal appeared in multiple images, produced through gravitational lensing by a massive foreground galaxy cluster. After the supernova appeare…

astro-ph.CO2023★ 7 cited

The XMM Cluster Survey: Exploring scaling relations and completeness of the Dark Energy Survey Year 3 redMaPPer cluster catalogue

E. W. Upsdell, P. A. Giles, A. K. Romer +67

We cross-match and compare characteristics of galaxy clusters identified in observations from two sky surveys using two completely different techniques. One sample is optically sel…

astro-ph.CO2023★ 1 cited

Examining the Self-Interaction of Dark Matter through Central Cluster Galaxy Offsets

Dane Cross, Gray Thoron, Tesla Jeltema +7

While collisionless cold dark matter models have been largely successful in explaining a wide range of observational data, some tensions still exist, and it remains possible that d…

astro-ph.CO2023★ 20 cited

Signatures of Cosmic Ray Heating in 21-cm Observables

T. Gessey-Jones, A. Fialkov, E. de Lera Acedo +2

Cosmic rays generated by supernovae carry away a significant portion of the lifetime energy emission of their parent star, making them a plausible mechanism for heating the early u…

astro-ph.CO2023★ 11 cited

Galaxy Clustering in the Mira-Titan Universe I: Emulators for the redshift space galaxy correlation function and galaxy-galaxy lensing

Juliana Kwan, Shun Saito, Alexie Leauthaud +7

We construct accurate emulators for the projected and redshift space galaxy correlation functions and excess surface density as measured by galaxy-galaxy lensing, based on Halo Occ…

astro-ph.CO2023★ 6 cited

What is the super-sample covariance? A fresh perspective for second-order shear statistics

Laila Linke, Pierre A. Burger, Sven Heydenreich +2

Cosmological analyses of second-order weak lensing statistics require precise and accurate covariance estimates. These covariances are impacted by two sometimes neglected terms: A…

astro-ph.CO2023★ 4 cited

On the Tremaine-Gunn Limit with Mass-Varying Particles

Lotfi Boubekeur, Stefano Profumo

General classical arguments on the time evolution of the phase-space density can be used to derive constraints on the mass of particle candidates for the cosmological dark matter (…

astro-ph.CO2023★ 15 cited

Accurate modelling of the Lyman- coupling for the 21-cm signal, observability with NenuFAR and SKA

Benoit Semelin, Romain Mériot, Florent Mertens +6

The measurement of the cm signal from the Cosmic Dawn is a major goal for several existing and upcoming radio interferometers such as NenuFAR and the SKA. During this era befo…

astro-ph.CO2023★ 37 cited

Constraints on from a full-scale and full-shape analysis of redshift-space clustering and galaxy-galaxy lensing in BOSS

Johannes U. Lange, Andrew P. Hearin, Alexie Leauthaud +5

We present a novel simulation-based cosmological analysis of galaxy-galaxy lensing and galaxy redshift-space clustering. Compared to analysis methods based on perturbation theory,…