NGC 4921: A Ram Pressure Stripped Galaxy (IMAGE)

National Radio Astronomy Observatory

NGC 4921: A Ram Pressure Stripped Galaxy

Caption

Shown here in composite view, ALMA data (red/orange) reveals filament structures left behind by ram pressure stripping in a Hubble Space Telescope optical view of NGC 4921. Scientists believe that these filaments are formed as magnetic fields in the galaxy prevent some matter from being stripped away.

Credit

ALMA (ESO/NAOJ/NRAO)/S. Dagnello (NRAO), NASA/ESA/Hubble/K. Cook (LLNL), L. Shatz

Usage Restrictions

No restrictions.

License

Public Domain

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