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The study of gas-dust interactions occurring in the interstellar medium of agalaxy is essential for understanding various physical processes taking placewithin it. A comparison of such events at different locations corresponding todiverse astrophysical environments provides more insight into thestar-formation as well as dust destruction conditions and time-scales. Wepresent a case study for two galaxies: NGC 3184 and NGC 7793, which are typicalexamples of a `grand design spiral' and a `flocculent spiral', respectively. Weinvestigate the gas-dust correlations at various spatially resolved locationswithin each galaxy, including spiral arms, using archival data. Moreover, wehave segregated the neutral gas into wide (warm) and narrow (cold) velocitycomponents to check the correlations with individual dust emission bands. Wefind a positive correlation between the gas and the dust, with the total atomicgas emission mainly dominated by its warm component in both the galaxies. Wealso find the dust population in NGC 7793 to have a greater fraction ofemission coming from cold and diffuse, larger-sized dust particles as comparedto NGC 3184. This nearby galaxy pilot study could serve as a template forsimilar studies of larger galaxy samples with analogous morphologies.

Gas-dust correlations in nearby galaxies: a case study of NGC 3184 and NGC 7793