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相关论文: The B3-VLA CSS sample. VII: WSRT Polarisation Obse…

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We present an analysis of the polarization of compact radio sources from six pointings of the Westerbork Synthesis Radio Telescope (WSRT) at 350 MHz with 35% coverage in lambda^2. After correcting for the off-axis instrumental polarization…

宇宙学与河外天体物理 · 物理学 2015-05-27 Damon Farnsworth , Lawrence Rudnick , Shea Brown

Rotation Measure synthesis (RM synthesis) of the Westerbork Synthesis Radio Telescope (WSRT) observations at 2 m wavelength of the FAN region at l=137deg, b=+7deg shows the morphology of structures in the ionized interstellar medium. We…

星系天体物理 · 物理学 2015-06-11 Marco Iacobelli , Marijke Haverkorn , Peter Katgert

We completed observations with the Effelsberg 100-m radio telescope to measure the polarised emission from a complete sample of Compact Steep-Spectrum sources. We observed the sources at four different frequencies. We complemented these…

宇宙学与河外天体物理 · 物理学 2015-05-13 F. Mantovani , K. -H. Mack , F. M. Montenegro-Montes , A. Rossetti , A. Kraus

A sample of large northern Spitzer Infrared Nearby Galaxies Survey (SINGS) galaxies has recently been observed with the Westerbork Synthesis Radio Telescope (WSRT). We present observations of the linearly polarized radio continuum emission…

星系天体物理 · 物理学 2015-05-13 G. Heald , R. Braun , R. Edmonds

We present the results of multi-frequency polarization VLA observations of radio sources from the complete sample of northern, radio-bright BL Lac objects compiled by H. Kuhr and G. Schmidt. These were used to determine the integrated…

天体物理学 · 物理学 2009-11-10 A. B. Pushkarev

We present new deep multi-frequency radio-polarimetric images of a sample of high redshift radio galaxies (HzRGs), having redshift between 1.7 and 4.1. The radio data at 4.7 and 8.2 GHz were taken with the Very Large Array in the A…

天体物理学 · 物理学 2019-08-17 L. Pentericci , W. Van Reeven , C. L. Carilli , H. J. A. Rottgering , G. K. Miley

Polarization measurements at low radio frequencies allow detection of small Faraday rotation measures caused by regular magnetic fields in galaxies and in the foreground of the Milky Way. The galaxy M31 was observed in two overlapping…

宇宙学与河外天体物理 · 物理学 2015-06-17 René Gießübel , George Heald , Rainer Beck , Tigran Arshakian

We present deep polarimetric observations at 154 MHz with the Murchison Widefield Array (MWA), covering 625 deg^2 centered on RA=0 h, Dec=-27 deg. The sensitivity available in our deep observations allows an in-band, frequency-dependent…

We use the observed polarisation properties of a sample of 26 powerful radio galaxies and radio-loud quasars to constrain the conditions in the Faraday screens local to the sources. We adopt the cosmological redshift, low-frequency radio…

天体物理学 · 物理学 2009-11-10 J. A. Goodlet , C. R. Kaiser

With the Westerbork Synthesis Radio Telescope (WSRT), multi-frequency polarimetric images were taken of the diffuse radio synchrotron background in a region centered on (l,b) = (161,16). The observations were done simultaneously in 5…

天体物理学 · 物理学 2011-05-23 Marijke Haverkorn , Peter Katgert , Ger de Bruyn

We present broadband polarimetric observations of a sample of high Faraday rotation measure (RM) AGN using the VLA telescope from 1 to 2 GHz, and 4 to 12 GHz. The sample (14 sources) consists of compact sources (linear resolution smaller…

We present results of interferometric polarization observations of the recently discovered magnetar J1745-2900 in the vicinity of the Galactic center. The observations were made with the Karl G. Jansky Very Large Array (VLA) on 21 February…

星系天体物理 · 物理学 2016-05-13 E. V. Kravchenko , W. D. Cotton , F. Yusef-Zadeh , Y. Y. Kovalev

We define 3 samples of extragalactic radio sources of type FRII, containing 26 objects in total. The control sample consists of 6C and 7C sources with radio powers of around 10e27 W\Hz at 151 MHz and redshifts of around z=1. The other…

天体物理学 · 物理学 2009-11-10 J. A. Goodlet , C. R. Kaiser , P. N. Best , J. Dennett-Thorpe

We report on full-Stokes L-band observations of 98 MeerKAT calibration sources. Linear polarization is detected in 71 objects above a fractional level of 0.2\%. We identify ten sources with strong fractional linear polarization and low…

星系天体物理 · 物理学 2024-05-24 A. R. Taylor , L. S. Legodi

The technique of Faraday tomography is a key tool for the study of magnetised plasmas in the new era of broadband radio polarisation observations. In particular, observations at metre-wavelengths provide significantly better Faraday depth…

Inadequacies in the knowledge of the primary beam response of current interferometric arrays often form a limitation to the image fidelity. We hope to overcome these limitations by constructing a frequency-resolved, full-polarization…

天体物理学 · 物理学 2009-11-13 Attila Popping , Robert Braun

We have observed 37 bright, polarized radio sources with the Allen Telescope Array (ATA) to present a novel analysis of their Faraday rotation properties. Each source was observed during the commissioning phase with 2 to 4 100-MHz bands at…

We present a broadband polarization analysis of 36 discrete polarized radio sources over a very broad, densely-sampled frequency band. Our sample was selected on the basis of polarization behaviour apparent in narrowband archival data at…

高能天体物理现象 · 物理学 2016-07-06 C. S. Anderson , B. M. Gaensler , I. J. Feain

Precise measurements of cosmic microwave background polarization require rigorous control of instrumental systematics. For the South Pole Telescope's third-generation camera (SPT-3G), accurate characterization of the beam is critical for…

Using the first station of the Long Wavelength Array (LWA1), we examine polarized pulsar emission between 25 and 88 MHz. Polarized light from pulsars undergoes Faraday rotation as it passes through the magnetized interstellar medium.…

高能天体物理现象 · 物理学 2020-07-01 V. Dike , G. B. Taylor , J. Dowell , K. Stovall
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