A far infrared polarimeter

Bibcode
2004NewA...10...79C
DOI
10.1016/j.newast.2004.05.002
Orlando, A.; Battistelli, E. S.; Savini, G.; Maoli, R.; Lamagna, L.; De Petris, M.; De Gregori, S.; Conversi, L.; Catalano, A.
Bibliographical reference

New Astronomy, Volume 10, Issue 2, p. 79-89.

Advertised on:
12
2004
Journal
New Astronomy
Number of authors
9
IAC number of authors
1
Citations
6
Refereed citations
5
Description
We describe an experiment to measure calibration sources, the polarization of Cosmic Microwave Background Radiation (CMBR) and the polarization induced on the CMBR from S-Z effects, using a polarimeter, MITOPol, that will be employed at the MITO telescope. Two modulation methods are presented and compared: an amplitude modulation with a Fresnel double rhomb and a phase modulation with a modified Martin-Puplett interferometer. A first light is presented from the campaign (summer 2003) that has permitted to estimate the instrument spurious polarization using the second modulation method.
Type
Refereed

It may interest you

  • Refereed
    Characterisation at Cryogenic Temperatures of an Attenuator for an Application of Astrophysical Instrumentation with MKIDs
    The use of non-cryogenic certified commercial electronics for cryogenic applications may be attractive due to their cost and availability, but it also carries risks related to reliability, performance and thermal compatibility. The decision to use commercial components that are not certified for cryogenics instead of components specifically
    Rodríguez Ramos L.F. et al.

    Advertised on:

    12
    2024
  • Refereed
    The return of FarNet-II: Generation of solar far-side magnetograms from helioseismic data
    Context. The far-side activity of the Sun can be inferred by interpreting the near-side wave field using local helioseismic techniques. However, detections are limited to strongly active regions because signal-to-noise ratio of the data is low. Recently, we developed the FarNet and FarNet-II neural networks to improve the identification of active
    Broock, E. G. et al.

    Advertised on:

    12
    2024
    Bibcode
    2024A&A...692A.182B
    Citations
    0
  • Refereed
    Non-local thermodynamic equilibrium inversions of the Si I 10827 Å spectral line
    Inferring the coupling of different atmospheric layers requires observing spectral lines sensitive to the atmospheric parameters, particularly the magnetic field vector, at various heights. The best way to tackle this goal is to perform multi-line observations simultaneously. For instance, the new version of the Gregor Infrared Spectrograph
    Quintero Noda, C. et al.

    Advertised on:

    12
    2024
    Bibcode
    2024A&A...692A.169Q
    Citations
    0