SIMBAD references

2016MNRAS.457.3178P - Mon. Not. R. Astron. Soc., 457, 3178-3190 (2016/April-2)

Broad-band linear polarization in late-type active dwarfs.

PATEL M.K., PANDEY J.C., KARMAKAR S., SRIVASTAVA D.C. and SAVANOV I.S.

Abstract (from CDS):

We present recent polarimetric results of magnetically active late-type dwarfs. The polarization in these stars is found to be wavelength dependent, decreasing towards the longer wavelength. The average values of degree of polarization in these active dwarfs are found to be 0.16±0.01, 0.080±0.006, 0.056±0.004 and 0.042±0.003 per cent in B, V, R, and I bands, respectively. Present results indicate that polarization in the majority of active dwarfs are primarily due to sum of the polarization by magnetic intensification and scattering. However, supplementary sources of the polarization are also found to be present in some active stars. The correlations between the degree of polarization and various activity parameters like Rossby number, chromospheric activity indicator and coronal activity indicator are found to be stronger in B band and weaker in I band.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): techniques: polarimetric - stars: activity - stars: late-type - stars: magnetic field - starspots

Simbad objects: 73

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2020.02.28-11:21:37

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