The age decay of stellar magnetic activity in MS field solar-type stars

Bibcode
1983Ap&SS..97..151C
DOI
10.1007/BF00684618
Cabestany, J.; Vazquez, M.
Bibliographical reference

Astrophysics and Space Science (ISSN 0004-640X), vol. 97, no. 1, Nov. 1983, p. 151-156.

Advertised on:
11
1983
Number of authors
2
IAC number of authors
2
Citations
2
Refereed citations
2
Description
The age decay of two indicators of the stellar magnetic activity (λ2800 Mg II emission flux and λ10830 He I equivalent width) have been studied for field solar-type stars. The Li abundance has been used, in most of the cases, as a stellar age indicator. A calibrated decay law for Mg II has been determined and compared with a similar one, recently published, for the Ca II K emission. The greater scatter in the He I results is attributed to the different rotation rates.
Type
Refereed
Main sequence stars
Stellar evolution
Stellar magnetic fields

It may interest you

  • 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
  • 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