Extraction of gravitational wave signals in realistic LISA data

Autor:	Castelli, Eleonora, Baghi, Quentin, Baker, John G., Slutsky, Jacob, Bobin, Jérôme, Karnesis, Nikolaos, Petiteau, Antoine, Sauter, Orion, Wass, Peter, Weber, William J.
Rok vydání:	2024
Předmět:	General Relativity and Quantum Cosmology Astrophysics - Instrumentation and Methods for Astrophysics Physics - Data Analysis Statistics and Probability
Druh dokumentu:	Working Paper
Popis:	The Laser Interferometer Space Antenna (LISA) mission is being developed by ESA with NASA participation. As it has recently passed the Mission Adoption milestone, models of the instruments and noise performance are becoming more detailed, and likewise prototype data analyses must as well. Assumptions such as Gaussianity, Stationarity, and continuous data continuity are unrealistic, and must be replaced with physically motivated data simulations, and data analysis methods adapted to accommodate such likely imperfections. To this end, the LISA Data Challenges have produced datasets featuring time-varying and unequal constellation armlength, and measurement artifacts including data interruptions and instrumental transients. In this work, we assess the impact of these data artifacts on the inference of Galactic Binary and Massive Black Hole properties. Our analysis shows that the treatment of noise transients and gaps is necessary for effective parameter estimation. We find that straightforward mitigation techniques can significantly suppress artifacts, albeit leaving a non-negligible impact on aspects of the science. Comment: 28 pages, 14 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2411.13402 Zobrazit plný text záznamu View this record from Arxiv