Journal Article

The discovery of a giant debris arc in the Coma cluster

Neil Trentham and Bahram Mobasher

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 293, issue 1, pages 53-59
Published in print January 1998 | ISSN: 0035-8711
Published online January 1998 | e-ISSN: 1365-2966 | DOI:
The discovery of a giant debris arc in the Coma cluster

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We present the discovery of a giant low-surface-brightness arc, of length ∼80 kpc, in the Coma cluster. The arc consists of a diffuse luminous matrix with surface brightness µB<26.5 mag arcsec−2 and a number of embedded condensations. It is not associated with any giant galaxy in Coma in particular; neither does it have the properties of a gravitational arc. We argue that a fast interaction between the nearby barred S0 galaxy IC 4026 and either IC 4041 or RB 110 is the most natural explanation for the origin of the arc.

Keywords: galaxies: clusters: individual: Coma; galaxies: interactions

Journal Article.  0 words. 

Subjects: Astronomy and Astrophysics

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