Probing Wolf-Rayet Winds: Chandra/HETG X-Ray Spectra of WR 6

Kavli Affiliate: David P. Huenemoerder | First 5 Authors: David P. Huenemoerder, Kenneth G. Gayley, Wolf-Rainer Hamann, Richard Ignace, Joy S. Nichols | Summary: With a deep Chandra/HETGS exposure of WR 6, we have resolved emission lines whose profiles show that the X-rays originate from a uniformly expanding spherical wind of high X-ray-continuum optical depth. […]


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Flops and spherical functors

Kavli Affiliate: Alexey Bondal | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: We study derived categories of Gorenstein varieties X and X^+ connected by a flop. We assume that the flopping contractions f: X to Y, f^+: X^+ to Y have fibers of dimension bounded by 1 and Y has canonical hypersurface […]


Continue.. Flops and spherical functors