The Shadow of Comet Hale–Bopp in Lyman-Alpha |
| |
| Authors: | Rosine Lallement Bertaux Jean-Loup Karöly Szegö Szilvia Nemeth |
| |
| Institution: | (1) Service d' Aéronomie du CNRS, BP 3, 91371 Verrieres-le-Buisson, France;(2) KFKI Research Institute for Particles and Nuclear Physics, PO Box 49, H-1525 Budapest, Hungary |
| |
| Abstract: | For a few months around perihelion, thecentral part of the Hale–Bopp hydrogencloud has been optically thick to thesolar Lyα
radiation, and hassignificantly reduced the solar flux availablefor the resonance glow of interstellarhydrogen beyond the
comet. This shadowing effecton the interstellar gas is the first everobserved comet shadow. It is modeled andcompared with
SWAN observations. Shadowmodelling will help to constrain the cometwater production and radiative transfer effectsin the interstellar
ionisation cavity. |
| |
| Keywords: | Comets interstellar medium solar system |
| 本文献已被 SpringerLink 等数据库收录！ |
