APOD
Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
M87's Energetic Jet
Explanation: An energetic jet from the core of giant elliptical galaxy M87 stretches outward for 5,000 light-years. This monstrous jet appears in the panels above to be a knotted and irregular structure, dectected across the spectrum , from x-ray to optical to radio wavelengths. In all these bands , the observed emission is likely created as high energy electrons spiral along magnetic field lines, so called synchrotron radiation . But what powers this cosmic blowtorch? Ultimately, the jet is thought to be produced as matter near the center of M87 swirls toward a spinning, supermassive black hole. Strong electromagnetic forces are generated and eject material away from the black hole along the axis of rotation in a narrow jet. Galaxy M87 is about 50 million light-years away and reigns as the large central elliptical galaxy in the Virgo cluster .
| Date | November 1, 2001 |
|---|---|
| Credit |
Credit: X-ray: H. Marshall (MIT), et al., CXC , NASA Radio: F. Zhou, F. Owen ( NRAO ), J. Biretta ( STScI) Optical: E. Perlman ( UMBC ), et al., STScI, NASA |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |



