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A vast, thin plane of corotating dwarf galaxies orbiting the Andromeda galaxy

Rodrigo A. Ibata (), Geraint F. Lewis, Anthony R. Conn, Michael J. Irwin, Alan W. McConnachie, Scott C. Chapman, Michelle L. Collins, Mark Fardal, Annette M. N. Ferguson, Neil G. Ibata, A. Dougal Mackey, Nicolas F. Martin, Julio Navarro, R. Michael Rich, David Valls-Gabaud and Lawrence M. Widrow
Additional contact information
Rodrigo A. Ibata: Observatoire Astronomique de Strasbourg, 11 rue de l’Université, F-67000 Strasbourg, France
Geraint F. Lewis: Sydney Institute for Astronomy, School of Physics, A28, The University of Sydney
Anthony R. Conn: Macquarie University
Michael J. Irwin: Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
Alan W. McConnachie: NRC Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, British Columbia, V9E 2E7, Canada
Scott C. Chapman: Dalhousie University, 6310 Coburg Road, Halifax, Nova Scotia, B3H 4R2, Canada
Michelle L. Collins: Max-Planck-Institut für Astronomie
Mark Fardal: University of Massachusetts, LGRT 619-E, 710 North Pleasant Street, Amherst, Massachusetts 01003-9305, USA
Annette M. N. Ferguson: Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK
Neil G. Ibata: Lycée International des Pontonniers, 1 rue des Pontonniers, F-67000 Strasbourg, France
A. Dougal Mackey: The Australian National University, Mount Stromlo Observatory, Cotter Road, Weston Creek, Australian Capital Province 2611, Australia
Nicolas F. Martin: Observatoire Astronomique de Strasbourg, 11 rue de l’Université, F-67000 Strasbourg, France
Julio Navarro: University of Victoria, 3800 Finnerty Road, Victoria, British Columbia, V8P 5C2, Canada
R. Michael Rich: University of California, Los Angeles, PAB, 430 Portola Plaza, Los Angeles, California 90095-1547, USA
David Valls-Gabaud: LERMA, UMR CNRS 8112, Observatoire de Paris, 61 Avenue de l’Observatoire, 75014 Paris, France
Lawrence M. Widrow: Engineering Physics, and Astronomy, Queen’s University, Kingston, Ontario, K7L 3N, Canada

Nature, 2013, vol. 493, issue 7430, 62-65

Abstract: About half of the satellites in the Andromeda galaxy (M 31), all with the same sense of rotation about their host, form a planar subgroup that is extremely wide but also very thin.

Date: 2013
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DOI: 10.1038/nature11717

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