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Back X Structure at Core of M51

X Structure at Core of M51


Date: 08 June 1992
Satellite: Hubble
Depicts: Core M51
Copyright: NASA/ESA, H. Ford (JHU/STScI), the Faint Object Spectrograph IDT

This image of the core of the nearby spiral galaxy M51, taken with the Wide Field Planetary camera (in PC mode) on the NASA/ESA Hubble Space Telescope, shows a striking , dark "X" silhouetted across the galaxy's nucleus. The "X" is due to absorption by dust and marks the exact position of a black hole which may have a mass equivalent to one-million stars like the sun. The darkest bar may be an edge-on dust ring which is 100 light-years in diameter. The edge-on torus not only hides the black hole and accretion disk from being viewed directly from earth, but also determines the axis of a jet of high-speed plasma and confines radiation from the accretion disk to a pair of oppositely directed cones of light, which ionize gas caught in their beam. The second bar of the "X" could be a second disk seen edge on, or possibly rotating gas and dust in MS1 intersecting with the jets and ionization cones. The size of the image is 1100 light-years.
Last Update: 1 September 2019
7-Mar-2026 18:34 UT

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