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The Sunburst Arc: Direct Lyman escape observed in the brightest known lensed galaxy. T.E. Rivera-Thorsen, H. Dahle, M. Gronke, M. Bayliss, J.R. Rigby, R. Simcoe, R. Bordoloi, M. Turner, and G. Furesz,Astronomy & Astrophysics 608, (2017). Link: https://iaac.space/doc/Pre-Final-Article-2017-Sunburst-Arc.pdf ...Answer the questions related to this article: (a) Why is it difficulty for LyC radiation to escape galaxies with high star formation rates? (b) What is the difference between the density-bounded medium and the picket fence model? (c) Explain the spectral shape of the perforated shell model (see article: figure 1, right box). (d) What is the Sunburst Arc and how was it discovered? (e) When did the scientist observe the object and which instruments did they use? (f) What is the redshift of the Sunburst Arc and how was it determined from the data? (g) Explain the difference between the right and the left diagram in figure 4 (see article).
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