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From Progenitor to Afterlife Roger Chevalier SN 1987AHST/SINS
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Core Collapse Supernova Types IIP (plateau light curve) IIL (linear light curve) Ib (no H, He present) Ic (no H, no He) IIb (H early; like Ib or Ic late) IIn (narrow line) IIpec (peculiar, e.g., SN 1987A) Wheeler 1990
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Progenitor stars IIP (plateau) –Red supergiant IIb, IIn (narrow line), IIL (linear) –Red, or cool, supergiant Ib, Ic –Wolf-Rayet star SN 1987A – like –Blue supergiant
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Single massive star evolution Heger et al. 2003
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Fractional frequency of SN Types (Cappellaro,….) Type IIP 0.3 Types IIL, IIn, IIb 0.3 Types Ib,Ic 0.25 SN 1987A – like 0.15 (upper limit) High incidence of Type IIL/n/b and Ib/c indicates that binary evolution is important
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Element mixing by instabilities during explosion Kifonidis et al. 03
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Supernova density profile Break at velocity Break at velocity v br ~ (E/M) 1/2 v br ~ (E/M) 1/2 v br ~ 3000 km/sec v br ~ 3000 km/sec for E=10 51 ergs for E=10 51 ergs and M =10 M and M =10 M Maximum velocity limited by radiation (Matzner & McKee 99)
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Afterlife properties that depend on SN type Composition structure Maximum velocity Photoionizing radiation at shock breakout Core (neutron star/black hole) mass Fallback of matter to central core Density structure (on E and M)
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Forward shock Reverse shock Freely expanding ejecta cs wind
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Blondin, RAC
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Cas A radio NRAO/AUI
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Type Ic SN 1994I in M51 Model with synchrotron self-absorption and interaction of outer steep power law profile with a wind -1.0 spectrum, R~t 0.9 -1.0 spectrum, R~t 0.9 Data from Weiler, Stockdale,….
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Type Ib/c, no GRB Type Ib/c, GRB Type IIb Type IIP Type IIL Type IIn
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Type Ib/c, GRB Relativistic H env. – 0 M Type Ib/c, no GRB H env. - 0 M Type IIb – WR H env. - 0.01 M Type IIb – RSG H env. - 0.1 M Type IIL H env. - 1 M Type IIP H env. - 10 M
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SN 1987A – delayed radio increase Data from Ball optically thin optically thick
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X-ray Chandra Immler et al. 02 SN 1994I at 7 years
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Model radio – X-ray spectrum of SN Ic Fransson/RAC Inverse ComptonPhotosphere Synchrotron
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X-ray emission Type II –Thermal Type Ib, Ic –Synchrotron –Inverse Compton near maximum light
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Mass loss IIP (plateau) –~10 -6 -10 -5 M /yr (v w =10 km/sec) IIb, IIn (narrow line), IIL (linear) –~10 -5 -10 -3 M /yr (v w =10 km/sec) Ib, Ic, some IIb –~10 -6 -10 -4 M /yr (v w =1000 km/sec) if magnetic amplification efficient
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Long duration gamma-ray bursts Associated with SNe Ib/c, ~1/200 the rate Afterglow theory well-developed, but generally indicates interaction with a constant density medium
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Synchrotron emission Spherical relativistic blast wave early Jet effects late Sari et al. 98 Zhang & Woosley
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Shocked wind bubble a possibility, but termination shock radius too large, transition not seen,…
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SN 1987A 1/3 pc scale HST/SINSLight echo – dense wind to ~5 pc
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Extended mass loss Fast wind during main sequence phase gives extended bubble Slow RSG wind extends to During possible Wolf-Rayet phase, dense wind can be swept out by the fast wind
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Inner and outer interaction Blondin, RAC, Frierson 01 Forward shock Reverse shock Shock in ejecta Pulsar wind termination shock
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Possible IIP - Crab No outer interaction observed Crab has low velocity hydrogen Crab abundances imply progenitor mass ~10 M
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G21.5-0.9 – initially pure pulsar nebula Radio Becker & Szymkowiak 1981 Chandra – X-ray Matheson & Safi-Harb 2005
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0540-69, Kes 75, MSH 15-52 Radii 9-20 pc Average velocity >~10,000 km/sec Seem to have crossed “wind bubble” Not IIL/n/b Probably Ib, Ic; irregular shell may be RSG wind swept out by WR star wind Kes 75, X-ray Helfand et al. 03
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Young PWNe SNRTypeP P 0 estimate B (msec)(msec) (10 12 G) CrabIIP33204 3C 58 IIP66404 Kes 75 Ib/c3256048 G11.2-0.3IIL/n/b65602 G292.0+1.8IIL/n/b1352010 0540-69Ib/c50405 MSH 15-52 Ib/c1504014.
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Wind interaction model for Cas A - likely IIL/n/b Expansion rate of bright shell and forward shock consistent with wind ( ~r -2 ) interaction model Wind density: dM/dt ~3x10 -5 M /year for v w =10 km/sec Contains a quiet, compact object RAC & Oishi 03 NASA/SAO/CXC
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Summary Properties of young remnants can be related to supernova properties; mass loss environment deduced from interaction generally consistent with evolutionary expectations (not the case for GRBs) Present data do not show a correlation of pulsar/neutron star properties with supernova type
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Reverse shock in Cas A (Fesen,Morse,RAC…)
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