Results 71 to 80 of about 194,962 (166)

Can the cosmic-ray driven dynamo model explain the observations of the polarized emission of edge-on galaxies ? [PDF]

open access: yes, 2008
In the present paper we construct maps of polarized synchrotron radio emission of a whole galaxy, based on local models of the cosmic ray (CR) driven dynamo.
Barbara Kulesza-Żydzik   +25 more
core   +2 more sources

A CO Funnel in the Galactic Centre: Molecular Counterpart of the Northern Galactic Chimney?

open access: yes, 2023
We report the discovery of a velocity coherent, funnel shaped ^13CO emission feature in the Galactic centre (GC) using data from the SEDIGISM survey. The molecular cloud appears as a low velocity structure (V_LSR=[-3.5, +3.5] km/s) with an angular extent
Banda-Barragan, W. E.   +9 more
core   +1 more source

Radio Galaxy NGC 1265 unveils the Accretion Shock onto the Perseus Galaxy Cluster

open access: yes, 2011
We present a consistent 3D model for the head-tail radio galaxy NGC 1265 that explains the complex radio morphology and spectrum by a past passage of the galaxy and radio bubble through a shock wave. Using analytical solutions to the full Riemann problem
Battaglia   +25 more
core   +1 more source

CHANG-ES XXXIV: Magnetic Field Structure in Edge-On Galaxies Characterising large-scale magnetic fields in galactic halos [PDF]

open access: yesA&A 696, A112 (2025)
Understanding galactic magnetic fields is essential for interpreting feedback processes in galaxies. Despite their importance, the exact structure of these fields, particularly in galactic halos, remains unclear. Accurate descriptions are crucial for understanding the interaction between star formation and halo magnetisation.
arxiv   +1 more source

Galactic and Extragalactic Magnetic Fields

open access: yes, 2009
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.
Felix A. Aharonian   +3 more
core   +1 more source

The peculiar radio galaxy 3C 433

open access: yes, 1983
Radio, optical, and x-ray observations are presented of the peculiar radio galaxy 3C 433. Two basic features characterize the radio morphology: namely, a striking asymmetry in the strength and shape of the radio emission and an overall x-shaped structure.
W. Breugel   +4 more
semanticscholar   +1 more source

AGN and their host galaxies in the local Universe: two mass independent Eddington ratio distribution functions characterize black hole growth

open access: yes, 2017
We use a phenomenological model to show that black hole growth in the local Universe (z < 0.1) can be described by two separate, mass independent Eddington ratio distribution functions (ERDFs).
Caplar, Neven   +5 more
core   +1 more source

GMRT study of X-shaped radio sources [PDF]

open access: yesarXiv, 2008
Context. The nature of X-shaped sources is a matter of considerable debate in the literature: it has even been proposed that they provide evidence for black-hole-mergers/spin-reorientation, and therefore constrain the rate of strong gravitational wave events. Aim. To explore the nature of these X-shaped radio galaxies. Method.
arxiv  

The Hot Atmospheres of X-shaped Radio Galaxies [PDF]

open access: yes, 2011
We present an observational and numerical study of X-shaped radio galaxies, a subset of the double-lobed radio galaxies with a second set of lobes or "wings".
Hodges-Kluck, Edmund
core  

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