Magnetic field measurements

Bibcode
1992soti.book...71L
Landi Degl'Innocenti, Egidio
Bibliographical reference

In: Solar observations: Techniques and interpretation (A93-53183 23-92), p. 71, 73-143.

Advertised on:
0
1992
Number of authors
1
IAC number of authors
1
Citations
57
Refereed citations
50
Description
Techniques involved in measurements of solar magnetic field are based on the observation and interpretation of the polarization signal in suitable Fraunhofer lines. This paper discusses some facts about polarized radiation, the physical concepts underlying such measurements, and the techniques involved. Particular attention is given to the operating principles of polarimeters used in magnetic field measurements; the physical components of polarimeters; and the polarization phenomena, such as absorption, emission, and scattering, in a spectral line. Consideration is also given to the transfer of polarized radiation in a magnetized medium, line formation in a magnetic field, transfer equations for the Stokes parameters in a magnetized atmosphere; and solutions of the transfer equations and magnetic field measurements. Finally, methods for magnetic field measurements in unresolved structures and in prominences are described.
Type
Non-refereed
Polarimeters
Radiative transfer
Solar atmosphere
Solar prominences

It may interest you

  • Non-refereed
    First light and results for atmospheric characterization with The Near Infra-Red Planet Searcher (NIRPS)

    NIRPS is a new fiber-fed high spectral resolution (~80k) spectrograph assisted by adaptive optics installed on the 3.6m telescope of ESO at LaSilla, Chile. Operated simultaneously with HARPS, NIRPS covers the Y, J, and H bands. The commissioning phase demonstrated high stability for time-series observations along precise radial velocities reaching

    Allart, Romain et al.

    Advertised on:

    4
    2024
    Bibcode
    2024ESS.....562419A
    Citations
    0
  • Non-refereed
    Nodal Precession of a Hot Jupiter Transiting the Edge of a Late A-Type Star TOI-1518

    TOI-1518b, a hot Jupiter around a late A-type star, is one of the few planetary systems that transit the edge of the stellar surface (the impact parameter b~0.9) among hot Jupiters around hot stars (Cabot et al. 2021). The host star's high rotation speed (Vsini s~85 km s -1) and the planet's nearly polar orbit (λ~120 deg) may cause a nodal

    Watanabe, Noriharu et al.

    Advertised on:

    4
    2024
    Bibcode
    2024ESS.....561705W
    Citations
    0
  • Non-refereed
    Observational evidence of different formation mechanisms of Solar System-type architectures across spectral types

    Despite being the most abundant classes of known exoplanets, super-Earths and mini-Neptunes are absent in our Solar System, and the exact reason for this is still unknown. Some models suggest that cold-Jupiters play a major role in the formation of inner low-mass planets. This could explain the current architecture of our Solar System, and the

    Pinamonti, Matteo et al.

    Advertised on:

    4
    2024
    Bibcode
    2024ESS.....560801P
    Citations
    0