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Status of the COSmological Microwave Observations CALibrator

Fuente: arXiv

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Autori principali:	Mousset, L., Aumont, J., Berta, S., Bizzarri, L., Boulanger, F., Catalano, A., Cuttaia, F., Denis, A., Fontana, A. -L., Ovejero, D. González, Kalemi, B., Leclercq, S., Macías-Pérez, J. -F., Maffei, B., Mcnamara, T., Micheli, S., Migliaccio, M., Montier, L., Morfin, P., Moulin, M., Murgia, M., Myserlis, I., Nati, F., Ortu, P., Pérault, M., Pisano, G., Pisanu, T., Ponthieu, N., Ritacco, A., Savorgnano, S., Terenzi, L., Thibaut, L., Treuttel, J., Vescovi, C., Vacher, L., Zannoni, M.
Natura:	Preprint
Pubblicazione:	2026
Soggetti:	Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics
Accesso online:	Acceder al recurso
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_version_	1866914570968236032
author	Mousset, L. Aumont, J. Berta, S. Bizzarri, L. Boulanger, F. Catalano, A. Cuttaia, F. Denis, A. Fontana, A. -L. Ovejero, D. González Kalemi, B. Leclercq, S. Macías-Pérez, J. -F. Maffei, B. Mcnamara, T. Micheli, S. Migliaccio, M. Montier, L. Morfin, P. Moulin, M. Murgia, M. Myserlis, I. Nati, F. Ortu, P. Pérault, M. Pisano, G. Pisanu, T. Ponthieu, N. Ritacco, A. Savorgnano, S. Terenzi, L. Thibaut, L. Treuttel, J. Vescovi, C. Vacher, L. Zannoni, M.
author_facet	Mousset, L. Aumont, J. Berta, S. Bizzarri, L. Boulanger, F. Catalano, A. Cuttaia, F. Denis, A. Fontana, A. -L. Ovejero, D. González Kalemi, B. Leclercq, S. Macías-Pérez, J. -F. Maffei, B. Mcnamara, T. Micheli, S. Migliaccio, M. Montier, L. Morfin, P. Moulin, M. Murgia, M. Myserlis, I. Nati, F. Ortu, P. Pérault, M. Pisano, G. Pisanu, T. Ponthieu, N. Ritacco, A. Savorgnano, S. Terenzi, L. Thibaut, L. Treuttel, J. Vescovi, C. Vacher, L. Zannoni, M.
contents	As the sensitivity of CMB telescopes increases, the need for precise calibration becomes critical. Started in 2022, the COSMOCal project aims to place an artificial polarized source in geostationary orbit, which will serve as a reference for CMB telescopes. This source will emit at 90, 150 and 270 GHz and will be linearly polarized with a highly precise orientation smaller than 0.1 deg. This proceeding presents the scientific motivations for the project, the current status of the development of the instrument and the results of a calibration campaign performed in March 2026 at the Institut d'Astrophysique Spatiale.
format	Preprint
id	arxiv_https___arxiv_org_abs_2605_01057
institution	arXiv
publishDate	2026
record_format	arxiv
spellingShingle	Status of the COSmological Microwave Observations CALibrator Mousset, L. Aumont, J. Berta, S. Bizzarri, L. Boulanger, F. Catalano, A. Cuttaia, F. Denis, A. Fontana, A. -L. Ovejero, D. González Kalemi, B. Leclercq, S. Macías-Pérez, J. -F. Maffei, B. Mcnamara, T. Micheli, S. Migliaccio, M. Montier, L. Morfin, P. Moulin, M. Murgia, M. Myserlis, I. Nati, F. Ortu, P. Pérault, M. Pisano, G. Pisanu, T. Ponthieu, N. Ritacco, A. Savorgnano, S. Terenzi, L. Thibaut, L. Treuttel, J. Vescovi, C. Vacher, L. Zannoni, M. Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics As the sensitivity of CMB telescopes increases, the need for precise calibration becomes critical. Started in 2022, the COSMOCal project aims to place an artificial polarized source in geostationary orbit, which will serve as a reference for CMB telescopes. This source will emit at 90, 150 and 270 GHz and will be linearly polarized with a highly precise orientation smaller than 0.1 deg. This proceeding presents the scientific motivations for the project, the current status of the development of the instrument and the results of a calibration campaign performed in March 2026 at the Institut d'Astrophysique Spatiale.
title	Status of the COSmological Microwave Observations CALibrator
topic	Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics
url	https://arxiv.org/abs/2605.01057