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相关论文: Faraday Rotation Distributions from Stellar Magnet…

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Recent radio polarization observations have revealed a plethora of unexpected features in the polarized Galactic radio background that arise from propagation effects in the random (turbulent) interstellar medium. The canals are especially…

天体物理学 · 物理学 2009-11-11 Andrew Fletcher , Anvar Shukurov

One of the possible mechanisms responsible for the panoply of shapes in planetary nebulae is the presence of magnetic fields that drive the ejection of ionized material during the proto-planetary nebula phase. Therefore, detecting magnetic…

太阳与恒星天体物理 · 物理学 2015-06-18 F. Leone , R. L. M. Corradi , M. J. Martínez González , A. Asensio Ramos , R. Manso Sainz

We performed an observational study of the relation between the interstellar magnetic field alignment and star formation in twenty (20) sky regions containing Bok Globules. The presence of young stellar objects in the globules is verified…

太阳与恒星天体物理 · 物理学 2015-06-17 C. V. Rodrigues , V. de S. Magalhaes , J. W. Vilas-Boas , G. Racca , A. Pereyra

The optical Faraday effect describes the rotation of linear polarization upon propagation through a medium in the presence of a longitudinal magnetic field. The effect arises from a different phase delay between the right and left handed…

量子物理 · 物理学 2012-11-09 Colin Greenshields , Robert L. Stamps , Sonja Franke-Arnold

We used magneto-hydrodynamical cosmological simulations to investigate the cross-correlation between different observables (i.e. X-ray emission, Sunyaev-Zeldovich signal at 21 cm, HI temperature decrement, diffuse synchrotron emission and…

宇宙学与河外天体物理 · 物理学 2020-04-29 Claudio Gheller , Franco Vazza

We introduce the construction of polarized intensity cubes $P$(RA, Dec, $\Phi$) and their visualization as movies, as a powerful technique for interpreting Faraday structure. $P$ is constructed from maps of peak polarized intensity P(RA,…

宇宙学与河外天体物理 · 物理学 2024-09-24 Lawrence Rudnick , Craig Anderson , William D. Cotton , Alice Pasetto , Emma Alexander , Mehrnoosh Tahani

Contopoulos et al. recently argued that there is observational evidence for a preferred sense of the Faraday rotation-measure gradients across jets from active galactic nuclei (AGNs). Such behaviour could arise if there were a deterministic…

宇宙学与河外天体物理 · 物理学 2015-05-19 Arieh Königl

It has recently been suggested that conduction-driven magnetohydrodynamic (MHD) instabilities may operate at all radii within an intracluster medium (ICM), and profoundly affect the structure of a cluster's magnetic field. Where MHD…

宇宙学与河外天体物理 · 物理学 2015-05-19 Tamara Bogdanovic , Christopher Reynolds , Richard Massey

A method is given which renders indirect detection of strong gravitational waves possible. This is based on the reflection (collision) of a linearly polarized electromagnetic shock wave from (with) a cross polarized impulsive and shock…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Mustafa Halilsoy , Ozay Gurtug

Previously, a multi-wavelength (2cm, 4cm and 6cm) polarization study by Gabuzda, Murray and Cronin (2004) showed systematic Faraday Rotation gradients across the parsec-scale jets of several BL Lac objects, interpreted as evidence for…

天体物理学 · 物理学 2007-08-03 Mehreen Mahmud , Denise Gabuzda

We perform polarimetry analysis of 20 active galactic nuclei (AGN) jets using the Very Long Baseline Array (VLBA) at 1.4, 1.6, 2.2, 2.4, 4.6, 5.0, 8.1, 8.4, and 15.4 GHz. The study allowed us to investigate linearly polarized properties of…

高能天体物理现象 · 物理学 2018-03-12 E. V. Kravchenko , Y. Y. Kovalev , K. V. Sokolovsky

We investigate the properties of the Galactic ISM by applying Faraday tomography to a radio polarization data set in the direction of the Galactic anti-centre. We address the problem of missing large-scale structure in our data, and show…

天体物理学 · 物理学 2015-05-13 D. H. F. M. Schnitzeler , P. Katgert , A. G. de Bruyn

The autocorrelation function and similarly the Fourier-power spectrum of a rotation measure (RM) map of an extended background radio source can be used to measure components of the magnetic autocorrelation and power-spectrum tensor within a…

天体物理学 · 物理学 2011-05-23 Torsten A. Ensslin , Corina Vogt

We consider turbulent synchrotron emitting media that also exhibits Faraday rotation and provide a statistical description of synchrotron polarization fluctuations. In particular, we consider these fluctuations as a function of the spatial…

星系天体物理 · 物理学 2016-03-09 Alex Lazarian , Dmitri Pogosyan

Sub-pulse drifting has been regarded as one of the most insightful aspects of the pulsar radio emission. The phenomenon is generally explained with a system of emission sub-beams rotating around the magnetic axis, originating from a…

高能天体物理现象 · 物理学 2018-08-22 Yogesh Maan

Fast radio bursts (FRBs) are brief, intense flashes of radio waves from unidentified extragalactic sources. Polarized FRBs originate in highly magnetized environments. We report observations of the repeating FRB 20190520B spanning seventeen…

The strength of the total magnetic field in our Milky Way from radio Zeeman and synchrotron measurements is about 6 muG near the Sun and several mG in dense clouds, pulsar wind nebulae, and filaments near the Galactic Center. Diffuse…

天体物理学 · 物理学 2009-11-13 Rainer Beck

Variations in the Faraday rotation measure (RM) of repeating fast radio bursts (FRBs) provide critical diagnostics of the dynamically evolving magneto-ionic environments surrounding their progenitors. Sudden, transient ``RM flares'' can…

高能天体物理现象 · 物理学 2026-05-28 Yuan-Pei Yang , Boyang Liu

Faraday rotation provides a valuable tracer of magnetic fields in the interstellar medium; catalogs of Faraday rotation measures provide key observations for studies of the Galactic magnetic field. We present a new catalog of rotation…

The study of the magnetic field in stellar radiation zones is an important topic in modern astrophysics because the magnetic field can play an important role in several transport phenomena such as mixing and angular momentum transport. We…

太阳与恒星天体物理 · 物理学 2015-06-15 Alfio Bonanno , Vadim Urpin
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