Polarization statistics of extra-solar systems

Abstract

We have analysed the optical polarimetric properties of nearby intermediate-late type MS stars and examined in some detail the pecularities displayed by those known to have planets. We find that: i) the polarization degree is not strictly correlated with the presence of planets; ii) there is a lack of high eccentricity planets at high optical linear polarization levels; iii) no clear correlation is seen between metallicity and polarization amongst extra-solar systems; iv) the contribution to the polarization by the interstellar medium seems to become effective only after ~70 pc.

4 pages, 5 postscript figures, 1 table; Accepted for publication in Astronomy and Astrophysics

References in corpus (4)

• The metal-rich nature of stars with planets
• Dusty Debris Around Solar-Type Stars: Temporal Disk Evolution
• Lithium abundances for 185 main-sequence stars - Galactic evolution and stellar depletion of lithium
• Origins of Solar System Dust Beyond Jupiter

Cited by in corpus (7)

• Optical Linear Polarization of Late M- and L-Type Dwarfs
• Towards a complete stellar mass function of the Hyades. I. Pan-STARRS1 optical observations of the low-mass stellar content
• Near-infrared Linear Polarization of Ultracool Dwarfs
• Linear polarization of rapidly rotating ultracool dwarfs
• Optical and near-infrared linear polarization of low and intermediate-gravity ultra-cool dwarfs
• Rotational modulation of the linear polarimetric variability of the cool dwarf TVLM 513$-$46546
• Testing the existence of optical linear polarization in young brown dwarfs