吸積盤的蒸發(fā)與冕-資料下載頁
2024-10-04 23:21本頁面
【正文】 K, n ～ 108 cm3 and Compton radiation is low ? The emission is dominated by disk multicolor blackbody emission Spectra from disk+corona Two spectral states found by Monte Carlo simulations ? Hard state: Multicolor blackbody +Power law Xrays ? Soft state: Multicolor blackbody ? Hard state can occur for both high mdot and low mdot ? Soft state occurs only for high mdot Spectra emerging from the corona Hardstate spectrum: Power Law, α~ (Γ ~ ) Occur in either low or highluminosity system L= L= M=108Msun Spectra emerging from the corona Softstate spectrum: Occur only in luminous system M=108Msun L= 吸積盤與冕磁重聯(lián)模型小結 ? for a lowluminosity system (L) Hard spectrum: Power law, ?≈ In Seyfert galaxies: ? ≈(扣除反射成分后 ） ? for a highluminosity system (L) either hard spectrum ?≈ or soft spectrum (disk dominated MCD) ? Mass independent, applicable to stellarmass black hole Spectral transition:from low to very high state ~ ~ ~1. Disk+weak corona L/LEdd Accretion flow Low/hard High/soft Very high Spectral state Disk+strong corona Evaporation depletes the inner disk, Rin(mdot), Little B(?) Pr disk, B small, Evaporation inefficient Pg disk, B strong, Evaporation efficient Possible mechanism? Slim disk ADAF+disk Summary Accretion disk and corona ? CVs: UV delay in DNe, long recurrence in WZSge type DNe and XNe ? Xray transients: quiescent and outburst states ? BH Xray binaries: Continuously change of spectral state ? AGNs: Magic reconnection heated corona+dis
外語相關推薦
鄂ICP備17016276號-1