English
Related papers

Related papers: Magnetic Field Vector Structure of NGC6946

200 papers

We estimated the magnetic field strength at the horizon radius of black holes, that is derived by the magnetic coupling process and depended on the black hole mass $M_{BH}$ and the accretion rate $\dot{M}$. Our estimation is based on the…

Cosmology and Nongalactic Astrophysics · Physics 2010-03-01 M. Yu. Piotrovich , N. A. Silant'ev , Yu. N. Gnedin , T. M. Natsvlishvili

We use the TNG50 cosmological magnetohydrodynamical simulation of the IllustrisTNG project to show that magnetic fields in the circumgalactic medium (CGM) have significant angular structure. This azimuthal anisotropy at fixed distance is…

Astrophysics of Galaxies · Physics 2023-10-11 Rahul Ramesh , Dylan Nelson , Volker Heesen , Marcus Brüggen

We observe the magnetic field morphology towards a nearby star-forming filamentary cloud, G202.3+2.5, by the JCMT/POL-2 850 {\mu}m thermal dust polarization observation with an angular resolution of 14.4" (~0.053 pc). The average magnetic…

We made use of the two latest sets of Rotational Measures (RMs) of extra-galactic radio sources, namely the NRAO VLA Sky Survey otation Measures Catalogue, and a compilation by Kronberg&Newton-McGee(2011), to infer the global structure of…

Astrophysics of Galaxies · Physics 2015-05-27 M. S. Pshirkov , P. G. Tinyakov , P. P. Kronberg , K. J. Newton-McGee

Coherent structures in the distribution of the Faraday rotation measure of extragalactic radio sources are isolated using wavelet transformation technique. Signatures of the magnetic fields in the local (Orion) spiral arm, the Sagittarius…

Astrophysics · Physics 2009-10-31 P. Frick , R. Stepanov , A. Shukurov , D. Sokoloff

We report the detection of the ordered alignment between the magnetic field and kpc-scale bubbles in the nearby spiral galaxy, NGC\,628. Applying the Velocity Gradient Technique (VGT) on CO spectroscopic data from the ALMA-PHANGS, the…

We present a study of the correlation between the direction of the symmetry axis of the circumstellar material around intermediate mass young stellar objects and that of the interstellar magnetic field. We use CCD polarimetric data on 100…

Astrophysics of Galaxies · Physics 2011-02-11 Claudia V. Rodrigues , Marilia J. Sartori , Jane Gregorio-Hetem , A. Mario Magalhaes

Investigating the magnetic field structure in the innermost regions of relativistic jets is fundamental to shed light on the crucial physical processes giving rise to the jet formation, as well as to its extraordinary radiation output up to…

The magnetic field is integral to our understanding of the formation and dynamical evolution of molecular clouds and star formation within. We present a polarimetric survey of 17 massive protostellar cluster forming clumps, covered in 34…

Magnetic fields in our Galaxy and nearby galaxies have been revealed by starlight polarization, polarized emission from dust grains and clouds at millimeter and submillimeter wavelength, the Zeeman effect of spectral lines or maser lines…

Astrophysics of Galaxies · Physics 2013-08-06 JinLin Han

In this study, we investigated the radial variation of the azimuthal propagation of star formation across the spiral arms in the nearby galaxy NGC 5194 (M51a) by analysing the spatial separation between young star clusters and their nearest…

Astrophysics of Galaxies · Physics 2025-04-14 F. K. Sakhibov , V. S. Kostiuk , A. S. Gusev , E. V. Shimanovskaya

Evidence that the magnetic fields of extragalactic jets have a significant fraction of their energy in a random component is briefly summarized, and a detailed model of evolving, jet polarization structures is constructed, based on this…

Astrophysics · Physics 2009-11-10 Philip A. Hughes

We present 850 micron imaging polarimetry of the W51A massive star forming region performed with SCUBA on the JCMT. From the polarimetry we infer the column-averaged magnetic field direction, projected onto the plane of the sky. We find…

Astrophysics · Physics 2009-11-07 A. Chrysostomou , D. K. Aitken , T. Jenness , C. J. Davis , J. H. Hough , R. Curran , M. Tamura

The question of the origin and evolution of magnetic fields in stars possessing a radiative envelope, like the A-type stars, is still regarded as a challenge for stellar physics. Those zones are likely to be differentially rotating, which…

Solar and Stellar Astrophysics · Physics 2015-06-23 Laurène Jouve , Thomas Gastine , François Lignières

Even though magnetic fields play an important role in galaxy evolution, the redshift evolution of galactic-scale magnetic fields is not well constrained observationally. In this paper we aim to provide an observational constraint on the…

Astrophysics of Galaxies · Physics 2025-07-18 Timea Orsolya Kovacs , Sui Ann Mao , Aritra Basu , Yik Ki Ma , B. M. Gaensler

Arched magnetized structures are a common occurrence in space and laboratory plasmas. Results from a laboratory experiment on spatio-temporal evolution of an arched magnetized plasma ($\beta \approx 10^{-3}$, Lundquist number $\approx…

Plasma Physics · Physics 2021-12-22 Kamil D. Sklodowski , Shreekrishna Tripathi , Troy Carter

We present a high-resolution VLA study of the total power and polarized radio continuum emission at 8.46 and 4.86 GHz of the irregular galaxy NGC 4449, known for its weak rotation and non-systematic gas motions. We found strong galaxy-scale…

Astrophysics · Physics 2007-05-23 K. T. Chyzy , R. Beck , S. Kohle , U. Klein , M. Urbanik

We use images of high spatial and temporal resolution, obtained using both ground- and space-based instrumentation, to investigate the role magnetic field inclination angles play in the propagation characteristics of running penumbral waves…

Solar and Stellar Astrophysics · Physics 2015-06-17 D. B. Jess , V. E. Reznikova , T. Van Doorsselaere , P. H. Keys , D. H. Mackay

Magnetic fields constitute an energetic component of the interstellar medium in galaxies and hence can affect the formation of galactic structures. Sensitive resolved radio continuum observations together with statistical studies in galaxy…

Astrophysics of Galaxies · Physics 2018-11-20 Fatemeh S. Tabatabaei

Recent spectropolarimetric surveys of main-sequence intermediate-mass stars have exhibited a dichotomy in the distribution of the observed magnetic field between the kG dipoles of Ap/Bp stars and the sub-Gauss magnetism of Vega and Sirius.…

Solar and Stellar Astrophysics · Physics 2015-08-12 Mathieu Gaurat , Laurène Jouve , François Lignières , Thomas Gastine