High spatial resolution Galactic 3D extinction mapping with IPHAS
High spatial resolution Galactic 3D extinction mapping with IPHAS
复制标题
使用 IPHAS 绘制高空间分辨率银河系 3D 消光图
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
N. Walton
中科院分区:
文献类型:
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作者:
S. Sale;J. Drew;Y. Unruh;M. Irwin;C. Knigge;S. Phillipps;A. Zijlstra;B. Gansicke;R. Greimel;P. Groot;A. Mampaso;R. Morris;R. Napiwotzki;D. Steeghs;N. Walton
Abstract An algorithm, MEAD, is presented, which can map extinction in three dimensions, with fine distance and angular resolutions. MEAD is then employed when studying the structure of the outer Galaxy. We show that the Galaxy's radial density profile takes the form of a broken exponential, with density dropping off more steeply beyond a Galacto-centric radius of ~13 kpc.