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Three-Dimensional Structure and Dust Extinction in the Small Magellanic Cloud
Petia Yanchulova Merica-Jones, Karin M. Sandstrom, L. Clifton Johnson +6
We examine the three-dimensional structure and dust extinction properties in a ~ 200 pc 100 pc region in the southwest bar of the Small Magellanic Cloud (SMC). We model a…
Mapping the Escape Fraction of Ionizing Photons Using Resolved Stars: A Much Higher Escape Fraction for NGC 4214
Yumi Choi, Julianne J. Dalcanton, Benjamin F. Williams +6
We demonstrate a new method for measuring the escape fraction of ionizing photons using Hubble Space Telescope imaging of resolved stars in NGC 4214, a local analog of high-redshif…
An Analysis of the Shapes of Interstellar Extinction Curves. VIII. The Optical Extinction Structure
D. Massa, E. L. Fitzpatrick, K. D. Gordon
New HST/STIS optical spectra were obtained for a sample of early type stars with existing IUE UV spectra. These data were used to construct optical extinction curves whose general…