activity
20112026
most citedThe Atacama Cosmology Telescope: DR6 Gravitational Lensing Map and Cosmological Parameters

347 citations · 1.7k across the 68 of their papers we have counts for

collaborators

68 papers

cs.AI2026

AI Scientists as Engines of Discovery: A Case for Development within Reformed Institutions

Raul Jimenez, Boris Bolliet, Francisco Villaescusa-Navarro +7

Agentic artificial intelligence (AI) systems are beginning to assist, accelerate, and partially automate scientific discovery, performing tasks that span literature synthesis, code…

astro-ph.CO2026

Impact of non-Gaussian likelihood on cosmological constraints from the thermal Sunyaev--Zel'dovich power spectrum: a simulation-based inference analysis

Licong Xu, Íñigo Zubeldia, James Alvey +2

The thermal Sunyaev--Zel'dovich (tSZ) power spectrum is a sensitive probe of cosmology and cluster astrophysics, but its statistics are non-Gaussian because the signal receives a s…

cs.AI2026

Competing with AI Scientists: Agent-Driven Approach to Astrophysics Research

Thomas Borrett, Licong Xu, Andy Nilipour +7

We present an agent-driven approach to the construction of parameter inference pipelines for scientific data analysis. Our method leverages a multi-agent system, Cmbagent (the anal…

astro-ph.IM2026

Opportunities in AI/ML for the Rubin LSST Dark Energy Science Collaboration

LSST Dark Energy Science Collaboration, Eric Aubourg, Camille Avestruz +63

The Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST) will produce unprecedented volumes of heterogeneous astronomical data (images, catalogs, and alerts) that cha…

astro-ph.CO2025

The Simons Observatory: forecasted constraints on primordial gravitational waves with the expanded array of Small Aperture Telescopes

The Simons Observatory Collaboration, I. Abril-Cabezas, S. Adachi +479

We present updated forecasts for the scientific performance of the degree-scale (0.5 deg FWHM at 93 GHz), deep-field survey to be conducted by the Simons Observatory (SO). By 2027,…

astro-ph.CO2025

Self-consistent secondary cosmic microwave background anisotropies and extragalactic foregrounds in the FLAMINGO simulations

Tianyi Yang, Ian G. McCarthy, Fiona McCarthy +6

Secondary anisotropies in the cosmic microwave background (CMB) contain information that can be used to test both cosmological models and models of galaxy formation. Starting from…

cs.CL2025

Enhancing Agentic Autonomous Scientific Discovery with Vision-Language Model Capabilities

Kahaan Gandhi, Boris Bolliet, Inigo Zubeldia

We show that multi-agent systems guided by vision-language models (VLMs) improve end-to-end autonomous scientific discovery. By treating plots as verifiable checkpoints, a VLM-as-a…

cs.AI2025★ 1 cited

The Denario project: Deep knowledge AI agents for scientific discovery

Francisco Villaescusa-Navarro, Boris Bolliet, Pablo Villanueva-Domingo +33

We present Denario, an AI multi-agent system designed to serve as a scientific research assistant. Denario can perform many different tasks, such as generating ideas, checking the…

astro-ph.CO2025

CMB component-separated power spectrum estimation by Spectral Internal Linear Combination (SpILC)

Jack Y. L. Kwok, William R. Coulton, Niall MacCrann +3

Component separation methods mitigate the cross-contamination between different extragalactic and galactic contributions to cosmic microwave background (CMB) data. This is often do…

astro-ph.IM2025

CLAPP: The CLASS LLM Agent for Pair Programming

Santiago Casas, Christian Fidler, Boris Bolliet +2

We introduce CLAPP (CLASS LLM Agent for Pair Programming), an interactive AI assistant designed to support researchers working with the Einstein-Boltzmann solver CLASS. CLAPP lever…

astro-ph.CO2025

CLASS_SZ II: Notes and Examples of Fast and Accurate Calculations of Halo Model, Large Scale Structure and Cosmic Microwave Background Observables

Boris Bolliet, Aleksandra Kusiak, Fiona McCarthy +16

These notes are very much work-in-progress and simply intended to showcase, in various degrees of details (and rigour), some of the cosmology calculations that class_sz can do. We…

cs.AI2025

Open Source Planning & Control System with Language Agents for Autonomous Scientific Discovery

Licong Xu, Milind Sarkar, Anto I. Lonappan +23

We present a multi-agent system for automation of scientific research tasks, cmbagent (https://github.com/CMBAgents/cmbagent). The system is formed by about 30 Large Language Model…

astro-ph.IM2025

Evaluating Retrieval-Augmented Generation Agents for Autonomous Scientific Discovery in Astrophysics

Xueqing Xu, Boris Bolliet, Adrian Dimitrov +4

We evaluate 9 Retrieval Augmented Generation (RAG) agent configurations on 105 Cosmology Question-Answer (QA) pairs that we built specifically for this purpose.The RAG configuratio…

astro-ph.CO2025★ 10 cited

The Atacama Cosmology Telescope: DR6 Sunyaev-Zel'dovich Selected Galaxy Clusters Catalog

HSC Collaboration, M. Aguena, S. Aiola +98

We present the results of a search for galaxy clusters in the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) microwave sky maps covering 16293 square degrees in three frequ…

astro-ph.CO2025★ 8 cited

The Atacama Cosmology Telescope: DR6 Power Spectrum Foreground Model and Validation

Benjamin Beringue, Kristen M. Surrao, J. Colin Hill +28

We discuss the model of astrophysical emission at millimeter wavelengths used to characterize foregrounds in the multi-frequency power spectra of the Atacama Cosmology Telescope (A…

astro-ph.CO2025

Extracting cosmological information from the abundance of galaxy clusters with simulation-based inference

Íñigo Zubeldia, Boris Bolliet, Anthony Challinor +1

The abundance of galaxy clusters as a function of mass and redshift is a well-established and powerful cosmological probe. Cosmological analyses based on galaxy cluster number coun…

astro-ph.CO2025★ 20 cited

Unified and consistent structure growth measurements from joint ACT, SPT and \textit{Planck} CMB lensing

Frank J. Qu, Fei Ge, W. L. Kimmy Wu +143

We present the tightest cosmic microwave background (CMB) lensing constraints to date on the growth of structure by combining CMB lensing measurements from the Atacama Cosmology Te…

astro-ph.CO2025★ 2 cited

The Atacama Cosmology Telescope: DR6 Maps

Sigurd Naess, Yilun Guan, Adriaan J. Duivenvoorden +163

We present Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) maps of the Cosmic Microwave Background temperature and polarization anisotropy at arcminute resolution over three…

astro-ph.CO2025★ 14 cited

The Atacama Cosmology Telescope: DR6 Constraints on Extended Cosmological Models

Erminia Calabrese, J. Colin Hill, Hidde T. Jense +169

We use new cosmic microwave background (CMB) primary temperature and polarization anisotropy measurements from the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) to test fo…

astro-ph.CO2025★ 11 cited

The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and CDM Parameters

Thibaut Louis, Adrien La Posta, Zachary Atkins +165

We present power spectra of the cosmic microwave background (CMB) anisotropy in temperature and polarization, measured from the Data Release 6 maps made from Atacama Cosmology Tele…

astro-ph.IM2025★ 1 cited

The Simons Observatory: Science Goals and Forecasts for the Enhanced Large Aperture Telescope

The Simons Observatory Collaboration, M. Abitbol, I. Abril-Cabezas +419

We describe updated scientific goals for the wide-field, millimeter-wave survey that will be produced by the Simons Observatory (SO). Significant upgrades to the 6-meter SO Large A…

astro-ph.CO2025★ 2 cited

On the Impacts of Halo Model Implementations in Sunyaev-Zeldovich Cross-Correlation Analyses

Chad Popik, Nicholas Battaglia, Aleksandra Kusiak +2

Statistical studies of the circumgalactic medium (CGM) using Sunyaev-Zeldovich (SZ) observations offer a promising method of studying the gas properties of galaxies and the astroph…

astro-ph.IM2024★ 1 cited

Multi-Agent System for Cosmological Parameter Analysis

Andrew Laverick, Kristen Surrao, Inigo Zubeldia +5

Multi-agent systems (MAS) utilizing multiple Large Language Model agents with Retrieval Augmented Generation and that can execute code locally may become beneficial in cosmological…

astro-ph.CO2024

The Atacama Cosmology Telescope DR6 and DESI: Structure growth measurements from the cross-correlation of DESI Legacy Imaging galaxies and CMB lensing from ACT DR6 and Planck PR4

Frank J. Qu, Qianjun Hang, Gerrit Farren +51

We measure the growth of cosmic density fluctuations on large scales and across the redshift range through the cross-correlation of the ACT DR6 CMB lensing map and gala…