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• W1999774674 abstract "The optical/UV light curves of SN 1987A are analyzed with the multienergy group radiation hydrodynamics code STELLA. The calculated monochromatic and bolometric light curves are compared with observations shortly after shock breakout, during the early plateau, through the broad second maximum, and during the earliest phase of the radioactive tail. We have concentrated on a progenitor model calculated by Nomoto & Hashimoto and Saio, Nomoto, & Kato, which assumes that 14 M☉ of the stellar mass is ejected. Using this model, we have updated constraints on the explosion energy and the extent of mixing in the ejecta. In particular, we determine the most likely range of E/M (explosion energy over ejecta mass) and R0 (radius of the progenitor). In general, our best models have energies in the range E = (1.1 ± 0.3) × 1051 ergs, and the agreement is better than in earlier, flux-limited diffusion calculations for the same explosion energy. Our modeled B and V fluxes compare well with observations, while the flux in U undershoots after ~10 days by a factor of a few, presumably owing to NLTE and line transfer effects. We also compare our results with IUE observations, and a very good quantitative agreement is found for the first days, and for one IUE band (2500-3000 A) as long as for 3 months. We point out that the V flux estimated by McNaught & Zoltowski should probably be revised to a lower value." @default.
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• W1999774674 date "2000-04-01" @default.
• W1999774674 modified "2023-10-14" @default.
• W1999774674 title "Radiation Hydrodynamics of SN 1987A. I. Global Analysis of the Light Curve for the First 4 Months" @default.
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• W1999774674 doi "https://doi.org/10.1086/308588" @default.
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