51 citations · 144 across the 16 of their papers we have counts for
16 papers
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…
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,…
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…
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…
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…
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…
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…
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…
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…
The Planck SZiFi catalogues: a new set of Planck catalogues of Sunyaev-Zeldovich-detected galaxy clusters
Íñigo Zubeldia, Jean-Baptiste Melin, Jens Chluba +1
We introduce the Planck SZiFi catalogues, a new set of 10 catalogues of galaxy clusters detected through their thermal Sunyaev-Zeldovich (tSZ) signature. The catalogues are produce…
Mitigating the impact of the CIB on galaxy cluster SZ detection with spectrally constrained matched filters
Íñigo Zubeldia, Jens Chluba, Richard Battye
Galaxy clusters detected through the thermal Sunyaev-Zeldovich (tSZ) effect are a powerful cosmological probe from which constraints on cosmological parameters such as $Ω_{\mathrm{…
Galaxy cluster SZ detection with unbiased noise estimation: an iterative approach
Íñigo Zubeldia, Aditya Rotti, Jens Chluba +1
Multi-frequency matched filters (MMFs) are routinely used to detect galaxy clusters from CMB data through the thermal Sunyaev-Zeldovich (tSZ) effect, leading to cluster catalogues…
Understanding matched filters for precision cosmology
Íñigo Zubeldia, Aditya Rotti, Jens Chluba +1
Matched filters are routinely used in cosmology in order to detect galaxy clusters from mm observations through their thermal Sunyaev-Zeldovich (tSZ) signature. In addition, they n…
A Space Mission to Map the Entire Observable Universe using the CMB as a Backlight
Kaustuv Basu, Mathieu Remazeilles, Jean-Baptiste Melin +22
This Science White Paper, prepared in response to the ESA Voyage 2050 call for long-term mission planning, aims to describe the various science possibilities that can be realized w…
Microwave Spectro-Polarimetry of Matter and Radiation across Space and Time
Jacques Delabrouille, Maximilian H. Abitbol, Nabila Aghanim +77
This paper discusses the science case for a sensitive spectro-polarimetric survey of the microwave sky. Such a survey would provide a tomographic and dynamic census of the three-di…
Cluster-Void Degeneracy Breaking: Dark Energy, Planck and the Largest Cluster & Void
Martin Sahlén, Íñigo Zubeldía, Joseph Silk
Combining galaxy cluster and void abundances breaks the degeneracy between mean matter density and power spectrum normalization . In a first for voids, we constrai…