The Astrophysical Journal · 21 October 2026 · From issue 55
Estimation of Dust Mass from Infrared Emission and Extinction of Supernova Remnants: G93.7-0.2, G109.1-1.0, G156.2+5.7, and G166.0+4.3
In space dust clouds from old exploded stars, two weighing methods gave different mass answers.
Zhe 哲 Zhang 张, Jun 军 Li 李 et al.
Exploding stars leave behind clouds of space dust. Scientists can weigh this dust in two ways: by how it blocks starlight, or by the heat it gives off. For four exploded stars in our galaxy, these two methods gave different weight answers. Extra dust clouds sitting in front of or behind the targets likely got mixed into the measurements by mistake.
The amount of dust estimated from heat glow around four exploded stars.
Four star remnants only, measurements disagree due to background clutter.
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