Title
TiEMPO: Open-source time-dependent end-To-end model for simulating ground-based submillimeter astronomical observations
Author
Huijten, Esmee (Student TU Delft)
Roelvink, Yannick (Student TU Delft)
Brackenhoff, Stefanie A. (Student TU Delft)
Bakx, Tom J.L.C. (Nagoya University)
Zaalberg, Stan (Student TU Delft)
Baselmans, J.J.A. (TU Delft Tera-Hertz Sensing) ![ORCID 0000-0002-3385-7305 ORCID 0000-0002-3385-7305](/sites/all/themes/tud_repo3/img/icons/orcid_16x16.png)
Karatsu, K. (TU Delft Tera-Hertz Sensing; SRON Netherlands Institute for Space Research) ![ORCID 0000-0003-4562-5584 ORCID 0000-0003-4562-5584](/sites/all/themes/tud_repo3/img/icons/orcid_16x16.png)
van Hoven, M.B. (TU Delft Statistics)
Endo, A. (TU Delft Tera-Hertz Sensing) ![ORCID 0000-0003-0379-2341 ORCID 0000-0003-0379-2341](/sites/all/themes/tud_repo3/img/icons/orcid_16x16.png)
Contributor
Zmuidzinas, Jonas (editor)
Gao, Jian-Rong (editor)
Date
2020
Abstract
The next technological breakthrough in millimeter-submillimeter astronomy is 3D imaging spectrometry with wide instantaneous spectral bandwidths and wide fields of view. The total optimization of the focal-plane instrument, the telescope, the observing strategy, and the signal-processing software must enable efficient removal of foreground emission from the Earth's atmosphere, which is time-dependent and highly nonlinear in frequency. Here we present TiEMPO: Time-dependent End-To-end Model for Post-process Optimization of the DESHIMA spectrometer. TiEMPO utilizes a dynamical model of the atmosphere and parametrized models of the astronomical source, the telescope, the instrument, and the detector. The output of TiEMPO is a timestream of sky brightness temperature and detected power, which can be analyzed by standard signal-processing software. We first compare TiEMPO simulations with an on-sky measurement by the wideband DESHIMA spectrometer, and find good agreement in the noise power spectral density and sensitivity. We then use TiEMPO to simulate the detection of the line emission spectrum of a high-redshift galaxy using the DESHIMA 2.0 spectrometer in development. The TiEMPO model is open source. Its modular and parametrized design enables users to adapt it to design and optimize the end-To-end performance of spectroscopic and photometric instruments on existing and future telescopes.
Subject
Astronomical Instrumentation
DESHIMA
Kinetic Inductance Detectors
Millimeter-wave
Simulation
Spectrometer
Submillimeter-wave
To reference this document use:
http://resolver.tudelft.nl/uuid:dbd08f81-a053-40d6-a682-67815e9ea31d
DOI
https://doi.org/10.1117/12.2561014
Publisher
SPIE
Embargo date
2021-07-01
ISBN
9781510636934
Source
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X
Event
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X 2020, 2020-12-14 → 2020-12-22, Virtual, Online, United States
Series
Proceedings of SPIE - The International Society for Optical Engineering, 0277-786X, 11453
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
conference paper
Rights
© 2020 Esmee Huijten, Yannick Roelvink, Stefanie A. Brackenhoff, Tom J.L.C. Bakx, Stan Zaalberg, J.J.A. Baselmans, K. Karatsu, M.B. van Hoven, A. Endo, More Authors