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Radiation feedback in dusty clouds
Title: | Radiation feedback in dusty clouds |
Authors: | Ishiki, Shohei Browse this author | Okamoto, Takashi Browse this author →KAKEN DB |
Keywords: | radiative transfer | methods: numerical | ISM: clouds | HII regions |
Issue Date: | 21-Mar-2017 |
Publisher: | Oxford University Press |
Journal Title: | Monthly notices of the royal astronomical society |
Volume: | 466 |
Issue: | 1 |
Start Page: | L123 |
End Page: | L127 |
Publisher DOI: | 10.1093/mnrasl/slw253 |
Abstract: | We have investigated the impact of photoionization and radiation pressure on a dusty starforming cloud using one-dimensional radiation hydrodynamic simulations, which include absorption and re-emission of photons by dust. We find that, in a cloud of mass 10(5)M circle dot and radius 17 pc, the effect of radiation pressure is negligible when star formation efficiency is 2 per cent. The importance of radiation pressure increases with increasing star formation efficiency or an increasing dust-to-gas mass ratio. The net effect of radiation feedback, however, becomes smaller with the increasing dust-to-gas mass ratio, since the absorption of ultraviolet photons by dust grains suppresses photoionization and hence photoheating. |
Rights: | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society: Letters ©: 2016 Shohei Ishiki, Takashi Okamoto Published by Oxford University Press on behalf of The Royal Astronomical Society. All rights reserved. |
Type: | article |
URI: | http://hdl.handle.net/2115/67327 |
Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 岡本 崇
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