708 citations · 10.9k across the 124 of their papers we have counts for
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AstroMLab 3: Achieving GPT-4o Level Performance in Astronomy with a Specialized 8B-Parameter Large Language Model
Tijmen de Haan, Yuan-Sen Ting, Tirthankar Ghosal +6
AstroSage-Llama-3.1-8B is a domain-specialized natural-language AI assistant tailored for research in astronomy, astrophysics, cosmology, and astronomical instrumentation. Trained…
Systematic effects induced by half-wave plate differential optical load and TES nonlinearity for LiteBIRD
Silvia Micheli, Tijmen de Haan, Tommaso Ghigna +12
LiteBIRD, a forthcoming satellite mission, aims to measure the polarization of the Cosmic Microwave Background (CMB) across the entire sky. The experiment will employ three telesco…
Measurement and Modeling of Polarized Atmosphere at the South Pole with SPT-3G
A. Coerver, J. A. Zebrowski, S. Takakura +102
We present the detection and characterization of fluctuations in linearly polarized emission from the atmosphere above the South Pole. These measurements make use of data from the…
cosmosage: A Natural-Language Assistant for Cosmologists
Tijmen de Haan
cosmosage is a natural-language assistant intended for a wide audience, from laypersons interested in cosmology to students, teachers, and professional cosmologists. cosmosage prov…
MNTES: Modeling Nonlinearity of TES detectors for Enhanced Cosmic Microwave Background measurements with LiteBIRD
Tijmen de Haan, LiteBIRD Collaboration
Traditional methods of converting electronic readout counts to optical power incident on Transition Edge Sensors (TES) for Cosmic Microwave Background (CMB) observations involve a…
A Method of Measuring TES Complex ETF Response in Frequency-domain Multiplexed Readout by Single Sideband Power Modulation
Yu Zhou, Tijmen de Haan, Hiroki Akamatsu +5
The digital frequency domain multiplexing (DfMux) technique is widely used for astrophysical instruments with large detector arrays. Detailed detector characterization is required…