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
60 papers · 2 filters
IGM damping wing constraints on reionisation from covariance reconstruction of two QSOs
Bradley Greig, Andrei Mesinger, Frederick B. Davies +3
Bright, high redshift () QSOs are powerful probes of the ionisation state of the intervening intergalactic medium (IGM). The detection of Ly damping wing absorption imprint…
HeII Ly Transmission Spikes and Absorption Troughs in Eight High-resolution Spectra Probing the End of HeII Reionization
Kirill Makan, Gábor Worseck, Frederick B. Davies +3
We present statistics of HeII Lya transmission spikes and large-scale absorption troughs using archival high-resolution (-) far-UV spectra of eight HeI…
Euclid: Covariance of weak lensing pseudo- estimates. Calculation, comparison to simulations, and dependence on survey geometry
R. E. Upham, M. L. Brown, L. Whittaker +102
An accurate covariance matrix is essential for obtaining reliable cosmological results when using a Gaussian likelihood. In this paper we study the covariance of pseudo- es…
The resilience of the Etherington-Hubble relation
Fabrizio Renzi, Natalie B. Hogg, William Giarè
The Etherington reciprocity theorem, or distance duality relation (DDR), relates the mutual scaling of cosmic distances in any metric theory of gravity where photons are massless a…
Forecasting the potential of weak lensing magnification to enhance LSST large-scale structure analyses
Constance Mahony, Maria Cristina Fortuna, Benjamin Joachimi +4
Recent works have shown that weak lensing magnification must be included in upcoming large-scale structure analyses, such as for the Vera C. Rubin Observatory Legacy Survey of Spac…
A LOFAR view into the stormy environment of the galaxy cluster 2A0335+096
A. Ignesti, G. Brunetti, T. Shimwell +10
Radio observations represent a powerful probe of the physics occurring in the intracluster medium (ICM) because they trace the relativistic cosmic rays in the cluster magnetic fiel…
Lensing Without Borders. I. A Blind Comparison of the Amplitude of Galaxy-Galaxy Lensing Between Independent Imaging Surveys
A. Leauthaud, A. Amon, S. Singh +104
Lensing Without Borders is a cross-survey collaboration created to assess the consistency of galaxy-galaxy lensing signals () across different data-sets and to carry out end-to…
SEAGLE--III: Towards resolving the mismatch in the dark-matter fraction in early-type galaxies between simulations and observations
Sampath Mukherjee, Léon V. E. Koopmans, Crescenzo Tortora +4
The central dark-matter fraction of galaxies is sensitive to feedback processes during galaxy formation. Strong gravitational lensing has been effective in the precise measurement…
Fast and Credible Likelihood-Free Cosmology with Truncated Marginal Neural Ratio Estimation
Alex Cole, Benjamin Kurt Miller, Samuel J. Witte +4
Sampling-based inference techniques are central to modern cosmological data analysis; these methods, however, scale poorly with dimensionality and typically require approximate or…
Deep low-frequency radio observations of Abell 2256 I: The filamentary radio relic
K. Rajpurohit, R. J. van Weeren, M. Hoeft +22
We present deep and high fidelity images of the merging galaxy cluster Abell 2256 at low frequencies, using the upgraded Giant Metrewave Radio Telescope (uGMRT) and LOw-Frequency A…
Turbulent magnetic fields in the merging galaxy cluster MACS J0717.5+3745: polarization analysis
K. Rajpurohit, M. Hoeft, D. Wittor +20
We present wideband polarimetric observations, obtained with the Karl G. Jansky Very Large Array (VLA), of the merging galaxy cluster MACS J0717.5+3745, which hosts one of the most…
Improving IGM temperature constraints using wavelet analysis on high-redshift quasars
Molly Wolfson, Joseph F. Hennawi, Frederick B. Davies +3
The thermal state of the intergalactic medium (IGM) contains vital information about the epoch of reionization, one of the most transformative yet poorly understood periods in the…
Deep Chandra observations of merging galaxy cluster ZwCl 2341+0000
X. Zhang, A. Simionescu, C. Stuardi +9
Knowledge of X-ray shock and radio relic connection in merging galaxy clusters has been greatly extended in terms of both observation and theory over the last decade. ZwCl 2341+000…
Cosmological forecasts with the clustering of weak lensing peaks
Christopher T. Davies, Marius Cautun, Benjamin Giblin +3
Maximising the information that can be extracted from weak lensing measurements is a key goal for upcoming surveys such as LSST and Euclid. This is typically achieved through stati…
Pure-mode correlation functions for cosmic shear and application to KiDS-1000
Peter Schneider, Marika Asgari, Yasaman Najafi Jozani +10
One probe for systematic effects in gravitational lensing surveys is the presence of so-called B-modes in the cosmic shear two-point correlation functions ξ_\pm(\vt), since lensing…
KiDS & Euclid: Cosmological implications of a pseudo angular power spectrum analysis of KiDS-1000 cosmic shear tomography
A. Loureiro, L. Whittaker, A. Spurio Mancini +111
We present a tomographic weak lensing analysis of the Kilo Degree Survey Data Release 4 (KiDS-1000), using a new pseudo angular power spectrum estimator (pseudo-) under d…
Cosmological forecasts on thermal axions, relic neutrinos and light elements
William Giarè, Fabrizio Renzi, Alessandro Melchiorri +2
One of the targets of future Cosmic Microwave Background and Baryon Acoustic Oscillation measurements is to improve the current accuracy in the neutrino sector and reach a much bet…
Constraining beyond CDM models with 21cm intensity mapping forecast observations combined with latest CMB data
Maria Berti, Marta Spinelli, Balakrishna S. Haridasu +2
We explore constraints on dark energy and modified gravity with forecast 21cm intensity mapping measurements using the Effective Field Theory approach. We construct a realistic moc…
KiDS-1000: Constraints on the intrinsic alignment of luminous red galaxies
Maria Cristina Fortuna, Henk Hoekstra, Harry Johnston +11
We constrain the luminosity and redshift dependence of the intrinsic alignment (IA) of a nearly volume-limited sample of luminous red galaxies selected from the fourth public data…
AMICO galaxy clusters in KiDS-DR3: the impact of estimator statistics on the luminosity-mass scaling relation
Merijn Smit, Andrej Dvornik, Mario Radovich +4
As modern-day precision cosmology aims for statistical uncertainties of the percent level or lower, it becomes increasingly important to reconsider estimator assumptions at each st…
Euclid: Constraining ensemble photometric redshift distributions with stacked spectroscopy
M. S. Cagliari, B. R. Granett, L. Guzzo +109
The ESA Euclid mission will produce photometric galaxy samples over 15000 square degrees of the sky that will be rich for clustering and weak lensing statistics. The accuracy of th…
Joint constraints on cosmology and the impact of baryon feedback: combining KiDS-1000 lensing with the thermal Sunyaev-Zeldovich effect from Planck and ACT
Tilman Tröster, Alexander J. Mead, Catherine Heymans +13
We conduct a pseudo- analysis of the tomographic cross-correlation between 1000 deg of weak lensing data from the Kilo-Degree Survey (KiDS-1000) and the thermal Sunyaev…
Primordial tensor bispectra in -CMB cross-correlations
Giorgio Orlando, P. Daniel Meerburg, Subodh P. Patil
Cross-correlations between Cosmic Microwave Background (CMB) temperature and polarization anisotropies and -spectral distortions have been considered to measure (squeezed) primo…
Statistical strong lensing. II. Cosmology and galaxy structure with time-delay lenses
Alessandro Sonnenfeld
Context. Time delay lensing is a powerful tool to measure the Hubble constant . In order to obtain an accurate estimate of from a sample of time delay strong lenses, how…