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• W4238228564 endingPage "147" @default.
• W4238228564 startingPage "147" @default.
• W4238228564 abstract "Exact bolometric light curves of supernova shock breakouts are derived based on the universal, non-relativistic, planar breakout solutions, assuming spherical symmetry, constant Thomson scattering opacity, κ, and angular intensity corresponding to the steady-state planar limit. These approximations are accurate for progenitors with a scale height much smaller than the radius. The light curves are insensitive to the density profile and are determined by the progenitor radius R, and the breakout velocity and density, v0 and ρ0, respectively, and κ. The total breakout energy, EBO, and the maximal ejecta velocity, vmax , are shown to be EBO = 8.0πR2κ−1cv0 and vmax = 2.0v0, respectively, to an accuracy of about 10%. The calculated light curves are valid up to the time of transition to spherical expansion, tsph ≈ R/4v0. Approximate analytic expressions for the light curves are provided for breakouts in which the shock crossing time at breakout, t0 = c/κρ0v20, is ≪R/c (valid for R < 1014 cm). Modifications of the flux angular intensity distribution and differences in shock arrival times to the surface, Δtasym, due to moderately asymmetric explosions, affect the early light curve but do not affect vmax and EBO. For 4v0 ≪ c, valid for large (red supergiant) progenitors, L∝t−4/3 at max (Δtasym, R/c) < t < tsph and R may be accurately estimated from R ≈ 2 × 1013(L/1043 erg s−1)2/5(t/1 hr)8/15." @default.
• W4238228564 created "2022-05-12" @default.
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• W4238228564 date "2012-02-24" @default.
• W4238228564 modified "2023-09-29" @default.
• W4238228564 title "NON-RELATIVISTIC RADIATION MEDIATED SHOCK BREAKOUTS. II. BOLOMETRIC PROPERTIES OF SUPERNOVA SHOCK BREAKOUT" @default.
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• W4238228564 doi "https://doi.org/10.1088/0004-637x/747/2/147" @default.
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