# The Next Generation Fornax Survey (NGFS): VI. The Alignment of Dwarf Galaxies in The Fornax Cluster

## TL;DR

This study reveals a significant radial alignment of dwarf galaxies in the Fornax Cluster, with nucleated dwarfs and those in outer regions showing stronger alignment, independent of their luminosity or size.

## Contribution

First report of radial alignment differences between nucleated and non-nucleated dwarfs and their spatial dependence in the Fornax Cluster.

## Key findings

- Nucleated dwarfs exhibit stronger radial alignment than non-nucleated ones.
- Outer region dwarfs show slightly stronger alignment than inner region dwarfs.
- Radial alignment significance is independent of dwarf luminosity and size.

## Abstract

Using the photometric data from the Next Generation Fornax Survey, we find a significant radial alignment signal among the Fornax dwarf galaxies. For the first time, we report that the radial alignment signal of nucleated dwarfs is stronger than that of non-nucleated ones at 2.4$\sigma$ confidence level, and the dwarfs located in the outer region ($R>R_{\rm{vir}}/3$; $R_{\rm{vir}}$ is the Fornax virial radius) show slightly stronger radial alignment signal than those in the inner region ($R<R_{\rm{vir}}/3$) at $1.5\sigma$ level. We also find that the significance of radial alignment signal is independent of the luminosities or sizes of the dwarfs.