activity
20212026
most citedDESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations

1.1k citations · 2k across the 21 of their papers we have counts for

collaborators

21 papers

astro-ph.CO2026

Cosmology from Nx2pt Analyses of SKAO Wide-Area Surveys

Ian Harrison, Ziad Sakr, Giulia Piccirilli +7

SKAO surveys will provide an unprecedented window into the large-scale structure of the universe through HI 21cm galaxy and intensity mapping surveys, and radio continuum surveys.…

astro-ph.CO2026

Beyond ΛCDM with the SKA Observatory -- II: Unveiling the Secrets of the Early Universe

José Fonseca, Benedict Bahr-Kalus, Mario Ballardini +12

The origins of the universe remain one of the biggest mysteries in modern cosmology. While the Planck satellite has provided a wealth of information about the early universe, there…

astro-ph.CO2026

Cosmology from HI galaxy surveys with the SKA

Ainulnabilah Nasirudin, Philip Bull, Ziad Sakr +8

The 21cm line from neutral hydrogen is expected to be a ubiquitous (albeit faint) tracer of galaxies in the late Universe. With SKAO-MID, large wide-field surveys of several millio…

astro-ph.CO2026

Cosmology from Clustering of Continuum Galaxies

Jacobo Asorey, Catherine L. Hale, Sebastian von Hausegger +6

The distribution of radio continuum galaxies is a useful, fast, and accessible probe of the matter distribution in the Universe, enlightening us about the Universe's initial condit…

astro-ph.GA2026★ 17 cited

The LOFAR Two-metre Sky Survey: VII. Third Data Release

T. W. Shimwell, M. J. Hardcastle, C. Tasse +99

We present the third data release of the LOFAR Two-metre Sky Survey (LoTSS-DR3). The survey images cover 88% of the northern sky and were created from 12,950 hrs of data (18.6 PB)…

astro-ph.CO2025

EMU and Euclid: Detection of a radio-optical galaxy clustering cross-correlation signal between the Evolutionary Map of the Universe and Euclid

G. Piccirilli, B. Bahr-Kalus, S. Camera +173

Synergies between large-scale radio-continuum and optical/near-infrared galaxy surveys are a powerful tool for cosmology. Cross-correlating these surveys can constrain the redshift…

astro-ph.CO2025★ 7 cited

Overdispersed radio source counts and excess radio dipole detection

Lukas Böhme, Dominik J. Schwarz, Prabhakar Tiwari +6

The source count dipole from wide-area radio continuum surveys allows us to test the cosmological standard model. Many radio sources have multiple components, which can cause an ov…

astro-ph.GA2025★ 20 cited

The Evolutionary Map of the Universe: A new radio atlas for the southern hemisphere sky

A. M. Hopkins, A. Kapinska, J. Marvil +70

We present the Evolutionary Map of the Universe (EMU) survey conducted with the Australian Square Kilometre Array Pathfinder (ASKAP). EMU aims to deliver the touchstone radio atlas…

astro-ph.CO2025★ 9 cited

Model-Independent Measurement of the Matter-Radiation Equality Scale in DESI 2024

B. Bahr-Kalus, D. Parkinson, K. Lodha +52

The peak of the matter power spectrum, known as the turnover (TO) scale, is determined by the horizon size at the time of matter-radiation equality. This scale can serve as a stand…

astro-ph.CO2025

EMU: Cross-correlating EMU Pilot Survey 1 with Dark Energy Survey to validate the radio galaxy bias and redshift distribution

Chandra Shekhar Saraf, David Parkinson, Jacobo Asorey +6

Radio continuum galaxy surveys can provide a relatively fast map of the projected distribution of structure in the Universe, at the cost of lacking information about the radial dis…

astro-ph.CO2024★ 187 cited

DESI 2024 VII: Cosmological Constraints from the Full-Shape Modeling of Clustering Measurements

DESI Collaboration, A. G. Adame, J. Aguilar +210

We present cosmological results from the measurement of clustering of galaxy, quasar and Lyman- forest tracers from the first year of observations with the Dark Energy Spectrosc…

astro-ph.CO2024★ 1 cited

Cross-correlating the EMU Pilot Survey 1 with CMB lensing: Constraints on cosmology and galaxy bias with harmonic-space power spectra

K. Tanidis, J. Asorey, C. S. Saraf +8

We measured the harmonic-space power spectrum of galaxy clustering auto-correlation from the Evolutionary Map of the Universe Pilot Survey 1 data (EMU PS1) and its cross-correlatio…

astro-ph.CO2024★ 550 cited

Euclid. I. Overview of the Euclid mission

Euclid Collaboration, Y. Mellier, Abdurro'uf +1134

The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. Eucl…

astro-ph.CO2024★ 1.1k cited

DESI 2024 VI: Cosmological Constraints from the Measurements of Baryon Acoustic Oscillations

DESI Collaboration, A. G. Adame, J. Aguilar +200

We present cosmological results from the measurement of baryon acoustic oscillations (BAO) in galaxy, quasar and Lyman- forest tracers from the first year of observations from t…

astro-ph.CO2023★ 32 cited

Local primordial non-Gaussianity from the large-scale clustering of photometric DESI luminous red galaxies

Mehdi Rezaie, Ashley J. Ross, Hee-Jong Seo +46

We use angular clustering of luminous red galaxies from the Dark Energy Spectroscopic Instrument (DESI) imaging surveys to constrain the local primordial non-Gaussianity parameter…

astro-ph.IM2023★ 2 cited

NANCY: Next-generation All-sky Near-infrared Community surveY

Jiwon Jesse Han, Arjun Dey, Adrian M. Price-Whelan +206

The Nancy Grace Roman Space Telescope is capable of delivering an unprecedented all-sky, high-spatial resolution, multi-epoch infrared map to the astronomical community. This oppor…

astro-ph.CO2023★ 14 cited

Measurement of the matter-radiation equality scale using the extended Baryon Oscillation Spectroscopic Survey Quasar Sample

Benedict Bahr-Kalus, David Parkinson, Eva-Maria Mueller

The position of the peak of the matter power spectrum, the so-called turnover scale, is set by the horizon size at the epoch of matter-radiation equality. It can easily be predicte…

astro-ph.CO2023★ 14 cited

Constraining Cosmic Inflation with Observations: Prospects for 2030

Benedict Bahr-Kalus, David Parkinson, Richard Easther

The ability to test and constrain theories of cosmic inflation will advance substantially over the next decade. Key data sources include cosmic microwave background (CMB) measureme…

astro-ph.CO2022★ 9 cited

A measurement of the Integrated Sachs-Wolfe Effect with the Rapid ASKAP Continuum Survey

Benedict Bahr-Kalus, David Parkinson, Jacobo Asorey +3

The evolution of the gravitational potentials on large scales due to the accelerated expansion of the Universe is an important and independent probe of dark energy, known as the in…

astro-ph.CO2021★ 17 cited

Running primordial perturbations: Inflationary Dynamics and Observational Constraints

Richard Easther, Benedict Bahr-Kalus, David Parkinson

Inflationary cosmology proposes that the early Universe undergoes accelerated expansion, driven, in simple scenarios, by a single scalar field, or inflaton. The form of the inflato…

astro-ph.CO2021

The Kaiser-Rocket effect: three decades and counting

Benedict Bahr-Kalus, Daniele Bertacca, Licia Verde +1

The peculiar motion of the observer, if not accurately accounted for, is bound to induce a well-defined clustering signal in the distribution of galaxies. This signal is related to…