Zafar, T; Moller, P; Watson, D; Lattanzio, John; Hopkins, Andrew M.; Karakas, A. I.; Fynbo, J. P. U; Tanvir, Nial R; Selsing, J.; Jakobsson, Páll; Groves, Brent Allan; Covino, S.
Evolved asymptotic giant branch (AGB) stars and Type Ia supernovae (SNe) are important contributors to the elements that form dust in the interstellar medium of galaxies, in particular, carbon and iron. However, they require at least a Gyr to start producing these elements, therefore, a change in dust quantity or properties may appear at high redshifts. In this work, we use extinction of γ-ray burst (GRB) afterglows as a tool to look for variations in dust properties at z ≥ 3. We use a...[Show more]
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