TWO PLANES OF SATELLITES IN THE CENTAURUS A GROUP

@article{Tully2015TWOPO,  title={TWO PLANES OF SATELLITES IN THE CENTAURUS A GROUP},  author={R. Brent Tully and Noam I. Libeskind and Igor D. Karachentsev and Valentina E. Karachentseva and Luca Rizzi and Edward J. Shaya},  journal={The Astrophysical Journal Letters},  year={2015},  volume={802},  url={https://api.semanticscholar.org/CorpusID:118512897}}
Tip of the red giant branch measurements based on Hubble Space Telescope and ground-based imaging have resulted in accurate distances to 29 galaxies in the nearby Centaurus A Group. All but 2 of the 29 galaxies lie in either of two thin planes roughly parallel with the supergalactic equator. The planes are only slightly tilted from the line of sight, leaving little ambiguity regarding the morphology of the structure. The planes have characteristic rms long axis dimensions of ∼300 kpc and short… 

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