Magnetic Field of a Spiral Galaxy

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Magnetic Field of a Spiral Galaxy

Composite image of galaxy NGC 4217 shown edge-on. A central pinkish-purple line slants diagonally, representing visible light from the galaxy. An amorphous green glow surrounds this slanted line, representing the magnetic field lines as seen in radio wavelengths.

An image from the VLA dramatically reveals the huge extent of the magnetic field (in green) of a spiral galaxy seen edge-on from Earth.

Credit: Y. Stein (CDS), NRAO, SDSS, KPNO 0.9m, J. English (U. Manitoba), R.-J. Dettmar and A. Miskolczi (Ruhr U.), R.J. Rand (U.N.M.), and J. Irwin (Queen’s U.).

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Magnetic Field of a Spiral Galaxy

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