Imaging the circumstellar envelopes of AGB stars
Imaging the circumstellar envelopes of AGB stars
复制标题
对 AGB 恒星的星周包层进行成像
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
P. Huggins
中科院分区：
文献类型：
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作者：
N. Mauron;P. Huggins
目标。我们报告了一个探索性计划的结果，图像的渐近巨星分支（AGB）恒星的尘埃散射银河光扩展拱信封。我们的目标是表征的信封作为探针的质量损失过程的形态。方法.这些观测包括VLT的短曝光和1-2米望远镜的长曝光，以及哈勃太空望远镜的档案图像。结果我们观测了12颗AGB星，并在其中7颗中探测到了星周包层。检测到的包层具有质量损失率
Aims. We report the results of an exploratory program to image the extended circumstellar envelopes of asymptotic giant branch (AGB) stars in dust-scattered galactic light. The goal is to characterize the morphology of the envelopes as a probe of the mass-loss process. Methods. The observations consist of short exposures with the VLT and longer exposures with 1–2 m telescopes, augmented with archival images from the Hubble Space Telescope. Results. We observed 12 AGB stars and detected the circumstellar envelopes in 7. The detected envelopes have mass loss rates