434 datasets found

Keywords: polarimetry

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  • Linear polarization of nearby bright stars

    We report observations of the linear polarization of a sample of 49 nearby bright stars measured to sensitivities of between ~1 and ~4x10^-6^. The majority of stars in the...
  • Optical polarization in NGC 6124

    We have obtained optical multicolour (UBVRI) linear polarimetric data for 46 of the brightest stars in the area of the open cluster NGC 6124 in order to investigate the...
  • Ultra-wideband (0.4-4GHz) study of CU Vir

    The presence of a large-scale surface magnetic field in early-type stars leads to several unique electromagnetic phenomena producing radiation over X-ray to radio bands. Among...
  • MgII abs. toward SDSS QSOs with rotation measures

    We probed the magnetic fields in high-redshift galaxies using excess extragalactic contribution to residual rotation measure (RRM) for quasar sightlines with intervening MgII...
  • gamma-ray bright blazars optical polarization

    Blazars are highly variable active galactic nuclei that emit radiation at all wavelengths from radio to gamma rays. Polarized radiation from blazars is one key piece of evidence...
  • The magnetic field of L1544. I. NIR data

    The magnetic field (B-field) of the starless dark cloud L1544 has been studied using near-infrared (NIR) background starlight polarimetry (BSP) and archival data in order to...
  • NIR photometry and polarization in NGC 2264

    Near-infrared imaging polarimetry in the J, H, and Ks bands has been carried out for the protostellar cluster region around NGC 2264 IRS 2 in the Monoceros OB1 molecular cloud....
  • Polarization of stars in Taurus

    We present maps of the plane-of-sky magnetic field within two regions of the Taurus molecular cloud: one in the dense core L1495/B213 filament and the other in a diffuse region...
  • IR polarization data in the BN region

    New visible and K-band polarization measurements of stars surrounding molecular clouds in Orion A and stars in the Becklin-Neugebauer (BN) vicinity are presented. Our results...
  • Photopolarimetry of Southern Coalsack stars

    We present new multicolor photopolarimetry of stars behind the Southern Coalsack. Analyzed together with multiband polarization data from the literature, probing the Chamaeleon...
  • Rotation measures of extragalactic sources in SGPS

    We present new Faraday rotation measures (RMs) for 148 extragalactic radio sources behind the southern Galactic plane (253{deg}<=l<=356{deg}, |b|<=1.5{deg}), and use...
  • Polarimetry of V838 Mon and stars around

    We present imaging polarimetry observations of the eruptive variable V838 Monocerotis and its neighboring field obtained in 2002 October. The polarization of field stars...
  • VLBI polarimetry of CJF sources

    We present Very Long Baseline Array observations and a statistical analysis of 5GHz VLBI polarimetry data from 177 sources in the Caltech-Jodrell Bank Flat-Spectrum (CJF)...
  • Optical polarisation of 2MASS QSOs

    Optical broadband polarimetry is presented for near-infrared color-selected active galactic nuclei (AGNs) classified as quasi-stellar objects (QSOs) based on their Ks-band...
  • Polarization of broad absorption line QSOs

    We present the combined results of optical polarization surveys of QSOs showing broad absorption lines (BALQSOs) conducted at the Steward and McDonald Observatories. The merged...
  • Vilnius photometry in IC 59 and IC 63

    Optical and infrared continuum polarization from the interstellar medium is driven by radiative processes aligning the grains with the magnetic field. While a quantitative,...
  • A VLA survey of magnetic CVs. I. The data

    The Jansky Very Large Array was used to observe 121 magnetic cataclysmic variables (MCVs). We report radio detections of 18 stars. Thirteen are new radio sources, increasing the...
  • AGN jet kinematics

    We present total and polarized intensity images of 15 active galactic nuclei obtained with the Very Long Baseline Array at 7mm (43GHz) wavelength at 17 epochs from 1998 March to...
  • Linear polarization of AGN jets at 15GHz

    We present first-epoch, milliarcsecond-scale linear polarization images at 15GHz of 133 jets associated with active galactic nuclei (AGNs) from the MOJAVE (Monitoring of Jets in...
  • Optical Polarization of 47 QSOs

    New broad-band linear polarization measurements are presented for a sample of 47 QSOs which includes 27 broad absorption line QSOs and 2 gravitational lens candidates.
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