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The discovery of tidal tails around the globular cluster NGC 7492 with Pan-STARRS1

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arxiv 1705.04324 v1 pith:QDQHVX2H submitted 2017-05-11 astro-ph.GA

Camila Navarrete , Vasily Belokurov , Sergey E. Koposov This is my paper · ORCID
classification astro-ph.GA
keywords tailsclustertidalarounddiscoveryglobularappliedcolor-magnitude
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abstract

We report the discovery of tidal tails around the Galactic globular cluster NGC 7492, based on the Data Release 1 of the Pan-STARRS 1 survey. The tails were detected with a version of the matched filter technique applied to the $(g-r,r)$ and $(g-i,i)$ color-magnitude diagrams. Tidal tails emerging from the cluster extend at least $\sim$3.5 degrees in the North-East to South-East direction, equivalent to $\sim1.5$ kpc in projected length.

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  1. Neighbors, Not Kin: Kinematic evidence for tidal tails from NGC 7492 along the Sagittarius stream

    astro-ph.GA 2026-07 accept novelty 6.0 of 10

    GIRAFFE radial velocities and metallicities confirm NGC 7492 tidal tails extending ≥1.8 deg, kinematically and chemically distinct from the overlapping Sagittarius stream.

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