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The Maybe Stream: A Possible Cold Stellar Stream in the Ultra-diffuse Galaxy NGC1052-DF2

MPS-Authors

Abraham,  Roberto
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Danieli,  Shany
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

van Dokkum,  Pieter
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Conroy,  Charlie
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kruijssen,  J. M. Diederik
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Cohen,  Yotam
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Merritt,  Allison
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Zhang,  Jielai
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lokhorst,  Deborah
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Mowla,  Lamiya
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Brodie,  Jean
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Romanowsky,  Aaron J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Janssens,  Steven
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

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Citation

Abraham, R., Danieli, S., van Dokkum, P., Conroy, C., Kruijssen, J. M. D., Cohen, Y., et al. (2018). The Maybe Stream: A Possible Cold Stellar Stream in the Ultra-diffuse Galaxy NGC1052-DF2. Research Notes of the American Astronomical Society, 2.


Cite as: https://hdl.handle.net/21.11116/0000-0005-CF50-8
Abstract
We report tentative evidence for a cold stellar stream in the ultra- diffuse galaxy NGC1052-DF2. If confirmed, this stream (which we refer to as "The Maybe Stream") would be the first cold stellar stream detected outside of the Local Group. The candidate stream is very narrow and has an unusual and highly curved shape.