中国科学院新疆天文会XADXINJIANGASTRONOMICALOBSERVATORY.CATraditional magnetar model(2008)Magnetar =1.young NS (SNR & MSC)2.B_dip> B_QED=4.4*10^13 G (braking)3.B mul=10^14-10^15 G(burst andsuper-Eddington luminosity and persistentemission)
Traditional magnetar model (2008) Magnetar = 1. young NS (SNR & MSC) 2. B_dip> B_QED=4.4*10^13 G (braking) 3. B_mul=10^14-10^15 G (burst and super-Eddington luminosity and persistent emission)
中国科学院新建天文会XADXINJIANGASTRONOMICALOBSERVATORY.CASprehistory of magnetars1932:Chadwick,discoveryofneuton.1932: Landau, celestial objects with nuclear density.1934:Baade&Zwicky,NSsborninSNe1939:Oppenheimer&Volkoff,NSstructureM sun, 10 km。1967:Hewish & Bell, discovery of (rotation-powered) pulsars1971: Giacconi et al., discovery of accretionpowered X-ray pulsars
prehistory of magnetars 1932: Chadwick, discovery of neuton 1932: Landau, celestial objects with nuclear density 1934: Baade & Zwicky, NSs born in SNe 1939: Oppenheimer & Volkoff, NS structure M_sun, 10 km 1967: Hewish & Bell, discovery of (rotationpowered) pulsars 1971: Giacconi et al., discovery of accretionpowered X-ray pulsars
中国科学院新硅天文会XADXINJIANGASTRONOMICALOBSERVATORY,CASA brief history of magnetars1979:giant flareofSGR0526-661981:anomalous X-ray pulsars1992:“magnetars"1998: Timing of SGR 1806-20giant flare of SGR 1900+142006-: multiwave era (radio, IR, HX)2010:"low magnetic field"magnetar(B<7.5*10^12 G)
A brief history of magnetars 1979: giant flare of SGR 0526-66 1981: anomalous X-ray pulsars 1992: “magnetars” 1998: Timing of SGR 1806-20 giant flare of SGR 1900+14 2006-: multiwave era (radio, IR, HX) 2010: “low magnetic field” magnetar (B<7.5*10^12 G)
中国科学院新残天文会XADXINJIANGASTRONOMICALOBSERVATORY,CASThe magnetar model1.Duncan & Thompson 1992:1. Dynamo2. spin-down2. Usov 1992: millisecond magnetar as central engineforGRBs3.Paczynski1992: super-Eddington luminosity1992:“"magnetar
The magnetar model 1. Duncan & Thompson 1992: 1. Dynamo 2. spin-down 2. Usov 1992: millisecond magnetar as central engine for GRBs 3. Paczynski 1992: super-Eddington luminosity 1992: “magnetar
中国科学院新残天文会XADXINJIANGASTRONOMICALOBSERVATORY,CASMagnetar timingKouveliotouetal1gg8.SGR 1806-20:.P=7.47s.Pdot= 8.24*10^-11.tau=1500 yr.B=8*10^14. G (assuming magnetic dipole braking!
Magnetar timing Kouveliotou et al. (1998) SGR 1806-20: P=7.47s Pdot= 8.24*10^-11 tau=1500 yr B=8*10^14. G (assuming magnetic dipole braking!)