{"paper":{"title":"Numerical Simulations of Gaseous Disks Generated from Collisional Cascades at the Roche Limits of White Dwarf Stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Benjamin C. Bromley, Scott J. Kenyon","submitted_at":"2017-10-31T18:04:41Z","abstract_excerpt":"We consider the long-term evolution of gaseous disks fed by the vaporization of small particles produced in a collisional cascade inside the Roche limit of a 0.6 Msun white dwarf. Adding solids with radius \\r0\\ at a constant rate $\\dot{M}_0$ into a narrow annulus leads to two distinct types of evolution. When $\\dot{M}_0 > \\dot{M}_{0,crit}$ = $3 \\times 10^4 ~ (r_0 / {\\rm 1~km})^{3.92}$~g s$^{-1}$, the cascade generates a fairly steady accretion disk where the mass transfer rate of gas onto the white dwarf is roughly $\\dot{M}_0$ and the mass in gas is $M_g \\approx 2.3 \\times 10^{22} ~ (\\dot{M}_0"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.00026","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}