gas-to-dust ratio
(GDR)
(mass ratio of gas to dust, such as within a SF region)
The term gas-to-dust ratio (GDR) refers to the ratio of the mass
of gas to that of dust, which may be used for
objects such as a galaxy, or a star-forming region.
Sometimes the (analogous) dust-to-gas ratio (DGR) is used for
the purposes. These are examples of ratios that are determined
when possible, and then used to estimate one or the other mass when
only one is otherwise known. Dust-to-metal ratios (DMR)
are investigated and used analogously.
(gas,dust,ratio)
Further reading:
https://ned.ipac.caltech.edu/level5/Young/Young6_4.html
https://ui.adsabs.harvard.edu/abs/2025MNRAS.537.2987Z/abstract
https://ui.adsabs.harvard.edu/abs/2019MNRAS.490.1425L/abstract
https://ui.adsabs.harvard.edu/abs/1990ApJ...359...42D/abstract
https://www.stsci.edu/contents/newsletters/2021-volume-38-issue-01/the-2020-census-of-metals-and-dust-in-nearby-low-metallicity-galaxies-with-hubble
Index