Interstellar Extinction vs. Dust 姜碧沩 Department of Astronomy Beijing Normal University
2015/7/13 星际/星周尘埃 2015 暑期班
2015/7/13 星际/星周尘埃 2015 暑期班
2015/7/13 星际/星周尘埃 2015 暑期班
Principal features General rise from IR to UV (~0.1μm) 18μm and 10μm: O-Si-O bend and Si-O stretch in amorphous silicate 3.4μm: C-H stretch in hydrocarbon 2175Å: “2200 bump”. Probably pi – pi* electronic transition in sp2-bonded carbon (e.g. graphite or PAH) 400+ weak features – the Diffuse Interstellar Bands – still unidentified 2015/7/13 星际/星周尘埃 2015 暑期班
红外消光的强度 红外测光的精度 消光改正的难度 红外的深度 Galactic Center Gao, Li, Jiang, 2013 EPS, 65,1127 2015/7/13 星际/星周尘埃 2015 暑期班
Inhomogeneity of Interstellar Extinction Extinction law 2D extinction 3D extinction 2015/7/13 星际/星周尘埃 2015 暑期班
2015/7/13 星际/星周尘埃 2015 暑期班 Draine 2003 ARAA
Schelgel et al. 1998 2015/7/13 星际/星周尘埃 2015 暑期班
Chen, Schultheis, Jiang et al 2013 2015/7/13 星际/星周尘埃 2015 暑期班
Determination of Extinction Color excess Intrinsic color index stars Line ratio Nebula Pair-method Spectrum 2015/7/13 星际/星周尘埃 2015 暑期班
vs. Dust 2015/7/13 星际/星周尘埃 2015 暑期班
2015/7/13 星际/星周尘埃 2015 暑期班
CCM89 2015/7/13 星际/星周尘埃 2015 暑期班
2015/7/13 星际/星周尘埃 2015 暑期班
FM90 UV extinction curve 2015/7/13 星际/星周尘埃 2015 暑期班
Wang et al. 2013 2015/7/13 星际/星周尘埃 2015 暑期班
Summary Dust produces extinction, extinction reveals dust 2015/7/13 星际/星周尘埃 2015 暑期班 Trumpler, R. 1930 PASP 42, 21
Influence of Extinction Herschel's Map of the Milky Way On the Construction of the Heavens. By William Herschel, Esq. F. R. S. Philosophical Transactions of the Royal Society of London, Vol. 75. (1785), pp. 213-266. 2015/7/13 星际/星周尘埃 2015 暑期班