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

**Authors:** Camila Navarrete, Vasily Belokurov, Sergey E. Koposov

arXiv: 1705.04324 · 2017-05-31

## TL;DR

This paper reports the discovery of extensive tidal tails around the globular cluster NGC 7492 using Pan-STARRS1 data, revealing its interaction with the Galactic environment.

## Contribution

First detection of tidal tails around NGC 7492 using Pan-STARRS1 data and a matched filter technique on color-magnitude diagrams.

## Key findings

- Tidal tails extend at least 3.5 degrees (~1.5 kpc) from the cluster.
- Tails are aligned NE to SE, indicating ongoing tidal disruption.
- Detection demonstrates the effectiveness of the matched filter method with Pan-STARRS1 data.

## 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.

## Full text

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## Figures

5 figures with captions in the complete paper: https://tomesphere.com/paper/1705.04324/full.md

## References

44 references — full list in the complete paper: https://tomesphere.com/paper/1705.04324/full.md

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Source: https://tomesphere.com/paper/1705.04324