The LSPE-Strip beams

Bibcode
2022JInst..17P1028R
DOI
10.1088/1748-0221/17/01/P01028
Realini, S.; Franceschet, C.; Villa, F.; Sandri, M.; Addamo, G.; Alonso-Arias, P.; Bersanelli, M.; Cuttaia, F.; Jones, M.; Maris, M.; Mena, F. P.; Mennella, A.; Molina, R.; Morgante, G.; Tomasi, M.; Zannoni, M.
Bibliographical reference

Journal of Instrumentation

Advertised on:
1
2022
Number of authors
16
IAC number of authors
1
Citations
1
Refereed citations
0
Description
In this paper we describe the design and characterization of the optical system of LSPE/Strip, a coherent polarimeter array that will observe the microwave sky from the Teide Observatory in Tenerife in two frequency bands centred at 43 and 95 GHz through a dual-reflector crossed-Dragone telescope of 1.5 m aperture. In general, optical systems composed by a telescope-feed array assembly have non-idealities that might limit their ability to perform high-precision measurements. It is thus necessary to understand, characterize and properly control these systematic effects. For this reason, we performed electromagnetic simulations to characterize angular resolution, sidelobes, main beam symmetry, polarization purity and feedhorns orientation. The results presented in this paper will be an essential input for further optical studies and for the LSPE/Strip data analysis. Ultimately, they will be used to assess the impact of optical systematic effects on the scientific results.
Related projects
Full-sky map showing the spatial distribution of the primary anisotropies of the Cosmic Microwave Background (generated 380,000 years after the Big Bang) derived from observations of the Planck satellite
Anisotropy of the Cosmic Microwave Background

The general goal of this project is to determine and characterize the spatial and spectral variations in the temperature and polarisation of the Cosmic Microwave Background in angular scales from several arcminutes to several degrees. The primordial matter density fluctuations which originated the structure in the matter distribution of the present

Rafael
Rebolo López
In progress
Type
Refereed
Cosmology & Astroparticles (CYA, CTA)

It may interest you

  • Refereed
    NGTS-28Ab: a short period transiting brown dwarf

    We report the discovery of a brown dwarf orbiting a M1 host star. We first identified the brown dwarf within the Next Generation Transit Survey data, with supporting observations found in TESS sectors 11 and 38. We confirmed the discovery with follow-up photometry from the South African Astronomical Observatory, SPECULOOS-S, and TRAPPIST-S, and

    Henderson, Beth A. et al.

    Advertised on:

    5
    2024
    Bibcode
    2024MNRAS.530..318H
    Citations
    0
  • Refereed
    First characterization of the emission behavior of Mrk 421 from radio to very high-energy gamma rays with simultaneous X-ray polarization measurements

    Aims: We have performed the first broadband study of Mrk 421 from radio to TeV gamma rays with simultaneous measurements of the X-ray polarization from IXPE. Methods: The data were collected as part of an extensive multiwavelength campaign carried out between May and June 2022 using MAGIC, Fermi-LAT, NuSTAR, XMM-Newton, Swift, and several optical

    Abe, S. et al.

    Advertised on:

    4
    2024
    Bibcode
    2024A&A...684A.127A
    Citations
    0
  • Refereed
    Effects of density and temperature variations on the metallicity of Mrk 71

    In a very recent work, [1] claim that the scenario of temperature inhomogeneities proposed by [2] ($t2$ > 0) is not able to explain the O$^{2+}$/H$^{+}$ abundance discrepancy observed between the calculations based on the optical [OIII] collisional excited lines (CELs) and the OII recombination lines (RLs) in the star forming galaxy Mrk71. In this

    Méndez-Delgado, J. Eduardo et al.

    Advertised on:

    3
    2024
    Bibcode
    2024NatAs...8..275M
    Citations
    2