Počet záznamů: 1  

Deep probing of the photospheric sunspot penumbra: no evidence of field-free gaps

  1. 1.
    0470667 - ASÚ 2017 RIV FR eng J - Článek v odborném periodiku
    Borrero, J.M. - Asensio Ramos, A. - Collados Vera, M. - Schlichenmaier, R. - Balthasar, H. - Franz, M. - Rezaei, R. - Kiess, C. - Orozco Suárez, D. - Pastor Yabar, A. - Berkefeld, T. - von der Lühe, O. - Schmidt, D. - Schmidt, W. - Sigwarth, M. - Soltau, D. - Volkmer, R. - Waldmann, T.A. - Denker, C. - Hofmann, A. - Staude, J. - Strassmeier, K.G. - Feller, A. - Lagg, A. - Solanki, S.K. - Sobotka, Michal - Nicklas, H.
    Deep probing of the photospheric sunspot penumbra: no evidence of field-free gaps.
    Astronomy & Astrophysics. Roč. 596, December (2016), A2/1-A2/14. ISSN 0004-6361. E-ISSN 1432-0746
    Institucionální podpora: RVO:67985815
    Klíčová slova: sunspots * Sun * infrared
    Obor OECD: Astronomy (including astrophysics,space science)
    Impakt faktor: 5.014, rok: 2016

    We aim to confirm or refute the existence of weak-field regions in the deepest photospheric layers of the penumbra. At log tau(5) = 0 we find no evidence of regions with dynamically weak (B < 500 Gauss) magnetic fields in sunspot penumbrae. This result is much more reliable than previous investigations made on Fe I lines at 630 nm. Moreover, the result is independent of the number of nodes employed in the inversion, is independent of the point spread function used to deconvolve the data, and does not depend on the amount of stray light (i.e., wide-angle scattered light) considered.

    Trvalý link: http://hdl.handle.net/11104/0268236

     
     
Počet záznamů: 1  

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