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The linear polarisation of southern bright stars measured at the parts-per-million level
(2016-01-11)
We report observations of the linear polarisation of a sample of 50 nearby southern bright stars measured to a median sensitivity of ~4.4 x 10^{-6}. We find larger polarisations and more highly polarised stars than in the ...
Near-infrared circular polarization survey in star-forming regions : Correlations and trends
(2014-11-01)
We have conducted a systematic near-infrared circular polarization (CP) survey in star-forming regions, covering high-mass, intermediate-mass, and low-mass young stellar objects. All the observations were made using the ...
Nicmos polarimetry of "polar-scattered" seyfert 1 galaxies
(2011-09-01)
The nuclei of Seyfert 1 galaxies exhibit a range of optical polarization characteristics that can be understood in terms of two scattering regions producing orthogonal polarizations: an extended polar scattering region ...
Magnetic field configuration at the galactic center investigated by wide-field near-infrared polarimetry : transition from a toroidal to a poloidal magnetic field
(2010)
We present a large-scale view of the magnetic field (MF) in the central 2° × 2° region of our Galaxy. The polarization of point sources has been measured in the J, H, and KS bands using the near-infrared polarimetric camera ...
High sensitivity polarimetry : techniques and applications
(Springer Nature, 2010)
High sensitivity polarimetry will refer to fractional polarizations of below, and often significantly below, 103. Measuring low fractional polarization requires a large number of photons and also special techniques are ...
The linear polarization of nearby bright stars measured at the parts per million level
(2010)
We report observations of the linear polarization of a sample of 49 nearby bright stars measured to sensitivities of between ∼1 and ∼ 4 × 10−6 . The majority of stars in the sample show measurable polarization, but most ...
Extended High Circular Polarization in the Orion Massive Star Forming Region: Implications for the Origin of Homochirality in the Solar System
(2010)
We present a wide-field (∼6′ × 6′) and deep near-infrared (K s band: 2.14 μm) circular polarization image in the Orion nebula, where massive stars and many low-mass stars are forming. Our results reveal that a high circular ...