Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Leiden Observatory3.6k papers
- Centre National de la Recherche ScientifiqueFR2.4k papers
- Max Planck Institute for AstronomyDE1.4k papers
- European Southern ObservatoryCL1.4k papers
- Max Planck Institute for Extraterrestrial PhysicsDE1.3k papers
- California Institute of TechnologyUS1.1k papers
- University of GroningenNL1.1k papers
- Center for Astrophysics Harvard & SmithsonianUS1k papers
- Royal ObservatoryGB942 papers
- University of AmsterdamNL941 papers
- University College LondonGB886 papers
- University of CambridgeGB870 papers
55 papers · 2 filters
Bootstrapping Multi-Field Inflation: non-Gaussianities from light scalars revisited
Dong-Gang Wang, Guilherme L. Pimentel, Ana Achúcarro
Primordial non-Gaussianities from multi-field inflation are a leading target for cosmological observations, because of the possible large correlations generated between long and sh…
A novel model-marginalized cosmological bound on the QCD axion mass
Eleonora Di Valentino, Stefano Gariazzo, William Giarè +3
We present model-marginalized limits on mixed hot dark matter scenarios, which consider both thermal neutrinos and thermal QCD axions. A novel aspect of our analyses is the inclusi…
UV Luminosity Density Results at z>8 from the First JWST/NIRCam Fields: Limitations of Early Data Sets and the Need for Spectroscopy
Rychard Bouwens, Garth Illingworth, Pascal Oesch +4
We have derived luminosity functions, and set constraints on the UV luminosity and SFR density from z~17 to z~8, using the three most-studied JWST/NIRCam data sets, the SMACS0723,…
(Nearly) Model-Independent Constraints on the Neutral Hydrogen Fraction in the Intergalactic Medium at Using Dark Pixel Fractions in Ly and Ly Forests
Xiangyu Jin, Jinyi Yang, Xiaohui Fan +10
Cosmic reionization was the last major phase transition of hydrogen from neutral to highly ionized in the intergalactic medium (IGM). Current observations show that the IGM is sign…
Magnetic fields and relativistic electrons fill entire galaxy cluster
A. Botteon, R. J. van Weeren, G. Brunetti +12
The hot plasma within merging galaxy clusters is predicted to be filled with shocks and turbulence that may convert part of their kinetic energy into relativistic electrons and mag…
Deep low-frequency radio observations of Abell 2256 II: The ultra-steep spectrum radio halo
K. Rajpurohit, E. Osinga, M. Brienza +17
We present the first detailed analysis of the radio halo in the merging galaxy cluster Abell 2256 using the LOFAR, uGMRT, and VLA. These observations combined with archival X-ray d…
The Planck clusters in the LOFAR sky. III. LoTSS-DR2: Dynamic states and density fluctuations of the intracluster medium
X. Zhang, A. Simionescu, F. Gastaldello +19
The footprint of LoTSS-DR2 covers 309 PSZ2 galaxy clusters, 83 of which host a radio halo and 26 host a radio relic(s). It provides us an excellent opportunity to statistically stu…
Almanac: Weak Lensing power spectra and map inference on the masked sphere
A. Loureiro, L. Whiteway, E. Sellentin +3
We present a field-based signal extraction of weak lensing from noisy observations on the curved and masked sky. We test the analysis on a simulated Euclid-like survey, using a Euc…
EAGLE-like simulation models do not solve the entropy core problem in groups and clusters of galaxies
Edoardo Altamura, Scott T. Kay, Richard G. Bower +5
Recent high-resolution cosmological hydrodynamic simulations run with a variety of codes systematically predict large amounts of entropy in the intra-cluster medium at low redshift…
Is the Harrison-Zel'dovich spectrum coming back? ACT preference for and its discordance with Planck
William Giarè, Fabrizio Renzi, Olga Mena +2
The Data Release 4 of the Atacama Cosmology Telescope (ACT) shows an agreement with an Harrison-Zel'dovich primordial spectrum (), introducing a tension with a…
KiDS-Legacy calibration: unifying shear and redshift calibration with the SKiLLS multi-band image simulations
Shun-Sheng Li, Konrad Kuijken, Henk Hoekstra +9
We present SKiLLS, a suite of multi-band image simulations for the weak lensing analysis of the complete Kilo-Degree Survey (KiDS), dubbed KiDS-Legacy analysis. The resulting catal…
Prospects of testing late-time cosmology with weak lensing of gravitational waves and galaxy surveys
Anna Balaudo, Alice Garoffolo, Matteo Martinelli +2
We investigate the synergy of upcoming galaxy surveys and gravitational wave (GW) experiments in constraining late-time cosmology, examining the cross-correlations between the weak…
Return of Harrison-Zeldovich spectrum in light of recent cosmological tensions
Jun-Qian Jiang, Gen Ye, Yun-Song Piao
The spectral index of scalar perturbation is the significant initial condition set by inflation theory for our observable Universe. According to Planck results, current const…
KiDS-1000: Combined halo-model cosmology constraints from galaxy abundance, galaxy clustering and galaxy-galaxy lensing
Andrej Dvornik, Catherine Heymans, Marika Asgari +14
We present constraints on the flat CDM cosmological model through a joint analysis of galaxy abundance, galaxy clustering and galaxy-galaxy lensing observables with the Kilo-Deg…
Testing gravity with gravitational waves electromagnetic probes cross-correlations
Giulio Scelfo, Maria Berti, Alessandra Silvestri +1
In a General Relativistic framework, Gravitational Waves (GW) and Electromagnetic (EM) waves are expected to respond in the same way to the effects of matter perturbations between…
Galaxy clusters enveloped by vast volumes of relativistic electrons
V. Cuciti, F. de Gasperin, M. Brueggen +12
The central regions of galaxy clusters are permeated by magnetic fields and filled with relativistic electrons. When clusters merge, the magnetic fields are amplified and relativis…
Cospatial 21 cm and metal-line absorbers in the epoch of reionization -- I : Incidence and observability
Aniket Bhagwat, Benedetta Ciardi, Erik Zackrisson +1
Overdense, metal-rich regions, shielded from stellar radiation might remain neutral throughout reionization and produce metal as well as 21 cm absorption lines. Simultaneous absorp…
X-IFU/Athena view of the most distant galaxy clusters in the Universe
Florent Castellani, N. Clerc, Etienne Pointecouteau +2
The X-ray Integral Field Unit (X-IFU) on-board the second large ESA mission ''Athena'' will be a high spatial (5'') and spectral (2.5eV) resolution X-ray imaging spectrometer, oper…
JWST's PEARLS: Prime Extragalactic Areas for Reionization and Lensing Science: Project Overview and First Results
Rogier A. Windhorst, Seth H. Cohen, Rolf A. Jansen +82
We give an overview and describe the rationale, methods, and first results from NIRCam images of the JWST "Prime Extragalactic Areas for Reionization and Lensing Science" ("PEARLS"…
Extending empirical constraints on the SZ-mass scaling relation to higher redshifts via HST weak lensing measurements of nine clusters from the SPT-SZ survey at
Hannah Zohren, Tim Schrabback, Sebastian Bocquet +17
We present a Hubble Space Telescope (HST) weak gravitational lensing study of nine distant and massive galaxy clusters with redshifts ($z_\mathrm{medi…
Dynamical cluster masses from photometric surveys
Omar Contigiani, Henk Hoekstra, Margot M. Brouwer +5
The masses of galaxy clusters can be measured using data obtained exclusively from wide photometric surveys in one of two ways: directly from the amplitude of the weak lensing sign…
Abell 1033: Radio halo and gently reenergized tail at 54 MHz
H. W. Edler, F. de Gasperin, G. Brunetti +7
Abell 1033 is a merging galaxy cluster of moderate mass (). It hosts a broad variety of diffuse radio sources linked to different astroph…
Forecasting constraints on the mean free path of ionizing photons at from the Lyman- forest flux auto-correlation function
Molly Wolfson, Joseph F. Hennawi, Frederick B. Davies +1
Fluctuations in Lyman- (Ly) forest transmission towards high- quasars are partially sourced from spatial fluctuations in the ultraviolet background (UVB), the level of whi…
KiDS-1000 Cosmology: Constraints from density split statistics
Pierre A. Burger, Oliver Friedrich, Joachim Harnois-Déraps +13
Context. Weak lensing and clustering statistics beyond two-point functions can capture non-Gaussian information about the matter density field, thereby improving the constraints on…