학술논문
Metadata for the Flux Density Calibration of the April 2018 Event Horizon Telescope Data
Document Type
Working Paper
Author
Koay, J. Y.; Romero-Cañizales, C.; Matthews, L. D.; Janssen, M.; Blackburn, L.; Tilanus, R. P. J.; Park, J.; Asada, K.; Matsushita, S.; Baczko, A. -K.; La Bella, N.; Chan, C. -K.; Crew, G. B.; Fish, V.; Patel, N.; Ramakrishnan, V.; Rottmann, H.; Wagner, J.; Wiik, K.; Friberg, P.; Goddi, C.; Issaoun, S.; Keating, G.; Kim, J.; Krichbaum, T. P.; Marrone, D.; Narayanan, G.; Roy, A.; Ruíz, I.; Sánchez, S.; Torne, P.; Weintroub, J.
Source
Subject
Language
Abstract
The Event Horizon Telescope (EHT) observations carried out in 2018 April at 1.3 mm wavelengths included 9 stations in the array, comprising 7 single-dish telescopes and 2 phased arrays. The metadata package for the 2018 EHT observing campaign contains calibration tables required for the a-priori amplitude calibration of the 2018 April visibility data. This memo is the official documentation accompanying the release of the 2018 EHT metadata package, providing an overview of the contents of the package. We describe how telescope sensitivities, gain curves and other relevant parameters for each station in the EHT array were collected, processed, and validated to produce the calibration tables.
Comment: 26 pages, 7 figures, EHT Memo Series 2023-L1-01
Comment: 26 pages, 7 figures, EHT Memo Series 2023-L1-01