A model for constructing artificial integrated spectral lines and their Fourier transform properties relevant to the search for differential rotation of stars

Bibcode
1982A&A...106..261G
Garcia-Alegre, M. C.; Vazquez, M.; Woehl, H.
Bibliographical reference

Astronomy and Astrophysics, vol. 106, no. 2, Feb. 1982, p. 261-265.

Advertised on:
2
1982
Journal
Astronomy and Astrophysics
Number of authors
3
IAC number of authors
3
Citations
9
Refereed citations
6
Description
A model is given for constructing artificial integrated spectral lines which allows the inclusion of all effects relevant to the synthesis of these lines by numerical methods. Among the effects included are noise, limb darkening, the centre-to-limb variation of the shapes and wavelength positions of the spectral line profiles, different laws of the differential rotation and a tilting of the rotating star. Fourier transformation of the artificial integrated spectral lines is applied to decide whether the different effects may influence the possibility of detecting stellar differential rotation by the method of Gray (1977).
Type
Refereed
Stellar rotation
Limb darkening

It may interest you

  • Refereed
    Magnetic diffusion in solar atmosphere produces measurable electric fields
    The efficient release of magnetic energy in astrophysical plasmas, such as during solar flares, can in principle be achieved through magnetic diffusion, at a rate determined by the associated electric field. However, attempts at measuring electric fields in the solar atmosphere are scarce, and none exist for sites where the magnetic energy is
    Wöger, Friedrich et al.

    Advertised on:

    10
    2024
    Bibcode
    2024NatCo..15.8811A
    Citations
    0
  • Refereed
    Perspectives on the physics of late-type stars from beyond low earth orbit, the moon and mars
    With the new discoveries enabled thanks to the recent space missions, stellar physics is going through a revolution. However, these discoveries opened the door to many new questions that require more observations. The European Space Agency's Human and Robotic Exploration program provides an excellent opportunity to push forward the limits of our
    Santos, Ângela R. G. et al.

    Advertised on:

    10
    2024
    Bibcode
    2024npjMG..10...96M
    Citations
    0
  • Refereed
    Echo-free quality factor of a multilayer axion haloscope
    We report a methodology to determine the quality factor ( Q) of wavy dark matter detectors equipped with multilayered resonators, including Fabry-Pérot interferometers and the so-called dielectric haloscope. An anechoic chamber enables the observation of the resonance frequency and its amplitude for an unlimited series of layers for the first time
    DALI Collaboration et al.

    Advertised on:

    10
    2024
    Bibcode
    2024PhRvD.110g2013H
    Citations
    0