Artículo

Vieytes, M.C.; Mauas, P.J.D.; Díaz, R.F. "Chromospheric changes in K stars with activity" (2009) Monthly Notices of the Royal Astronomical Society. 398(3):1495-1504
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Abstract:

We study the differences in chromospheric structure induced in K stars by stellar activity, to expand our previous work for G stars, including the Sun as a star. We selected six stars of spectral type K with 0.82 < B - V < 0.90, including the widely studied Epsilon Eridani and a variety of magnetic activity levels. We computed chromospheric models for the stars in the sample, in most cases in two different moments of activity. The models were constructed to obtain the best possible match with the Ca ii K and the Hβ observed profiles. We also computed in detail the net radiative losses for each model to constrain the heating mechanism that can maintain the structure in the atmosphere. We find a strong correlation between these losses and S Ca II, the index generally used as a proxy for activity, as we found for G stars. © 2009 RAS.

Registro:

Documento: Artículo
Título:Chromospheric changes in K stars with activity
Autor:Vieytes, M.C.; Mauas, P.J.D.; Díaz, R.F.
Filiación:Instituto de Astronomía y Física Del Espacio, CC. 67 Suc. 28, 1428 Buenos Aires, Argentina
Palabras clave:Radiative transfer; Stars: activity; Stars: atmospheres
Año:2009
Volumen:398
Número:3
Página de inicio:1495
Página de fin:1504
DOI: http://dx.doi.org/10.1111/j.1365-2966.2009.15207.x
Título revista:Monthly Notices of the Royal Astronomical Society
Título revista abreviado:Mon. Not. R. Astron. Soc.
ISSN:00358711
CODEN:MNRAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v398_n3_p1495_Vieytes

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Citas:

---------- APA ----------
Vieytes, M.C., Mauas, P.J.D. & Díaz, R.F. (2009) . Chromospheric changes in K stars with activity. Monthly Notices of the Royal Astronomical Society, 398(3), 1495-1504.
http://dx.doi.org/10.1111/j.1365-2966.2009.15207.x
---------- CHICAGO ----------
Vieytes, M.C., Mauas, P.J.D., Díaz, R.F. "Chromospheric changes in K stars with activity" . Monthly Notices of the Royal Astronomical Society 398, no. 3 (2009) : 1495-1504.
http://dx.doi.org/10.1111/j.1365-2966.2009.15207.x
---------- MLA ----------
Vieytes, M.C., Mauas, P.J.D., Díaz, R.F. "Chromospheric changes in K stars with activity" . Monthly Notices of the Royal Astronomical Society, vol. 398, no. 3, 2009, pp. 1495-1504.
http://dx.doi.org/10.1111/j.1365-2966.2009.15207.x
---------- VANCOUVER ----------
Vieytes, M.C., Mauas, P.J.D., Díaz, R.F. Chromospheric changes in K stars with activity. Mon. Not. R. Astron. Soc. 2009;398(3):1495-1504.
http://dx.doi.org/10.1111/j.1365-2966.2009.15207.x