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Image for: Spirals eat dwarfs: Galactic tendrils shed light on evolution of spiral galaxies


Stellar streams around the galaxy M 63: remnants of a satellite galaxy that M 63 has swallowed. The central part is an ordinary positive image; in the outer regions, the negative of the image is shown. In this way, the faint structures that are the target of this survey are more readily discerned. This galaxy's distance from Earth is around 30 million light-years. The new survey has, for the first time, shown the presence of such tell-tale traces of spiral galaxies swallowing smaller satellites for galaxies more distant than our own “Local group” of galaxies.
Stellar streams around the galaxy M 63: remnants of a satellite galaxy that M 63 has swallowed. The central part is an ordinary positive image; in the outer regions, the negative of the image is shown. In this way, the faint structures that are the target of this survey are more readily discerned. This galaxy's distance from Earth is around 30 million light-years. The new survey has, for the first time, shown the presence of such tell-tale traces of spiral galaxies swallowing smaller satellites for galaxies more distant than our own “Local group” of galaxies.

Image: D. Martínez-Delgado (MPIA)

(100 KB, 754 x 456 pixels)

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