# DustKING - the story continues: dust attenuation in NGC628

## TL;DR

This paper investigates the variations of dust attenuation curves within the spiral galaxy NGC628, revealing diverse attenuation laws and their potential implications for understanding galaxy properties.

## Contribution

The study provides detailed analysis of spatial variations in dust attenuation laws within NGC628, highlighting the presence of a MW-like bump and steep UV slope, and discusses future data integration.

## Key findings

- Average attenuation law has a MW-like bump and steep UV slope.
- Regions with high A_V show shallower attenuation curves.
- Potential improvements from UVIT data are discussed.

## Abstract

Dust attenuation is a crucial but highly uncertain parameter that hampers the determination of intrinsic galaxy properties, such as stellar masses, star formation rates and star formation histories. The shape of the dust attenuation law is not expected to be uniform between galaxies, nor within a galaxy. Our DustKING project was introduced at the first BINA workshop in 2016 and aims to study the variations of dust attenuation curves in nearby galaxies. At the second BINA workshop in 2018, I presented the results of our pilot study for the spiral galaxy NGC628. We find that the average attenuation law of this galaxy is characterised by a MW-like bump and a steep UV slope. Furthermore, we observe intriguing variations within the galaxy, with regions of high $A_V$ exhibiting a shallower attenuation curve. Finally, we discuss how our work might benefit from data taken with the UVIT from the Indian AstroSat mission.