wish による ガンマ線バースト観測
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WISH による ガンマ線バースト観測. 米徳大輔 ( 金沢大学 ) 河合誠之 ( 東工大 ) 筒井亮 ( 京都大学 ). 2010/03/10 WISH サイエンスミーティング. [email protected]. ガンマ線バースト (GRB). ① C osmological ( 初期宇宙で発生 ) ② M assive star ( 大質量星の崩壊 ) ③ B right ( 極めて明るい ). ( z=8.2 ; Tanvir et al. 2009). (GRB030329/SN2003dh). - PowerPoint PPT PresentationTRANSCRIPT
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WISH [email protected] () () ()2010/03/10 WISH 1
(GRB)
(1054 erg/sec )(z=8.2 ; Tanvir et al. 2009)(GRB030329/SN2003dh) Cosmological ()
Massive star ()
Bright ()
GRB030329/SN2003dhHjorth et al. 2003HETE-2 GRB030329
HETE-2 1998 GRB980425/SN1998bw (z=0.0085)
Fan et al. 2006mass-averaged xHI (=nHI/nH)GRB050904 @ z = 6.3
DLA(zDLA=6.295)IGM(zIGM,u=6.36)Kawai et al. 2005, Totani et al. 2005Best fit = 0.0, < 0.6 ()LAE statisticsMalhotra & Rhoads 05Stern et al. 05Haiman & Cen 05GRB 050904 3 GRB080913 @ z = 6.7
26
GRB090423 (z=8.3)
GROND (Greiner et al. 2009)
T90 = 10.3 1.1 secEp = 48.6 6.2 keVFp = 1.7 0.2 photon/cm2/secFluence = (5.9 0.4) x 10-7 erg/cm2Swift-BAT15 150 keV (BAT 10)
15.2
C.P = 1.1310 -33 C.C. = 0.913Yonetoku et al. (2004, 2010)84 GRBsz = 8.2
F Peak energy (Epeak) EEtL Eiso (erg) Lp (erg/s)= Fluence (erg/cm2)(1+z) Peak Flux (erg/cm2/s)
Tsutsui, DY+ (2009)GRB = 0.15 Peak Luminosity (Lp : erg/s) log Ep 0.187 (log tL) Lp,52 = 103.87 Ep1.82t L0.34
(z) (m) 10241025102610270.010.1110Ia Hubble Diagram GRB GRB Type Ia SNe
(m, ) = (0, 1)(0.3, 0.7)(1, 0)z = 8.2GRBCalibrationNew !!Frontier
GRB m( 0.240.10, 0.760.10)(m, ) = z > 2 Tsutsui, DY + (2009)[ flat universe]
Spitzer 3.6umGRONDUpper limitJ,H,KGROND2.2m : J,H,KGeminiJ, HUKIRTKOkayama1.88m : JTime [Day]Magnitude (Vega) J-band H-band K-bandz = 7 8 090423(z = 8.3)3231521
Time [Day]Magnitude (Vega)z = 20
GRB515 K 325 K-band L-band M-band1523
= 10000/ 200 = 50 100Dumping wing (45) () 45 ( ToO )
GRB 101 (Lock-On and Go)
GRB