Investigations of the Interstellar Diffuse Band Spectrum
Investigations of the Interstellar Diffuse Band Spectrum
批准号:
9019576
负责人:
George Herbig
金额:
$7.95万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
1991
资助国家:
美国
项目状态:
已结题
起止时间:
1991-03-15 至 1994-08-31
中文摘要
赫比格博士将继续他的观察研究, 弥漫的星际带 它包括一项努力, 扩散带的强度与局部性质的 通过对恒星的高精度观测 嵌在电离氢云里,云后面的恒星, 星际尘埃颗粒的涂层 范围被删除,和恒星背后的星际气体冲击。 赫比格博士还将寻找星际多原子碳 分子。 这些研究依赖于 在夏威夷的莫纳克亚山的高海拔地区观测。 扩散性疾病携带者的识别问题 星际带(DIB)光谱在过去的50年里一直没有得到解决 在证明这些特征是由一些 星际介质的组成部分。 的可用性 新的探测器,弥漫的星际带的名单已经增长到 大约50个确定的条目,可以添加至少20个弱条目 最近在红色和近红外线中发现的特征 光谱的区域。 DIB仍然没有令人信服的证据 特征是明显的。 这导致了怀疑, 可能涉及到承运人家族。 赫比格博士的研究 来解决天文学中这个非常棘手的问题。
英文摘要
Dr. Herbig will continue his observational research into the nature of diffuse interstellar bands. It includes an effort to correlate the strengths of the diffuse bands with local properties of the interstellar medium through high-precision observations of stars imbedded in ionized hydrogen clouds, of stars behind clouds in which the coatings of the interstellar dust grains have to some extent been removed, and of stars behind shocked interstellar gas. Dr. Herbig wil also search for interstellar polyatomic carbon molecules. These studies depend upon the special advantages of observing from the high altitude site of Mauna Kea in Hawaii. The problem of the identification of the carrier of the diffuse interstellar band (DIB) spectrum remains unsolved over fifty years after it was demonstrated that these features are produced by some constituent of the interstellar medium. With the availability of new detectors the list of diffuse interstellar bands has grown to some 50 sure entries, to which can be added at least 20 more weak features that have recently been found in the red and near infrared regions of the spectrum. Still no convincing regularities in DIB characteristics are apparent. This leads to the suspicion that a family of carriers may be involved. Dr. Herbig's research will address this very vexing problem in astronomy.
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High Resolution Spectroscopy of Pre-Main Sequence Stars
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批准号:0702941
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项目类别:Standard Grant
-
资助金额:$19.55万
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财政年份:2007
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负责人:George Herbig
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依托单位:
Spectroscopy of Pre-main Sequence Stars
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批准号:0204021
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项目类别:Standard Grant
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资助金额:$0.0万
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财政年份:2002
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负责人:George Herbig
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依托单位:
Studies of Pre-Main Sequence Stars
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批准号:9730934
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项目类别:Standard Grant
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资助金额:$10.36万
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财政年份:1998
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负责人:George Herbig
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依托单位:
Investigations in Early Stellar Evolution
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批准号:9316356
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项目类别:Standard Grant
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资助金额:$10.2万
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财政年份:1994
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负责人:George Herbig
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依托单位:
Studies of the Diffuse Interstellar Bands
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批准号:9315268
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项目类别:Standard Grant
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资助金额:$3.85万
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财政年份:1994
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负责人:George Herbig
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依托单位:
Studies in Early Stellar Evolution
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批准号:8822908
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项目类别:Continuing Grant
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资助金额:$6.24万
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财政年份:1989
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负责人:George Herbig
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依托单位:
Spectroscopy of Diffuse Interstellar Bands
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批准号:8722098
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项目类别:Standard Grant
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资助金额:$3.7万
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财政年份:1988
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负责人:George Herbig
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依托单位:
Pre-Main Sequence Stars, Herbig-Haro Objects and High- Resolution Studies of Interstellar Material
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批准号:8796312
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项目类别:Standard Grant
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资助金额:$2.03万
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财政年份:1987
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负责人:George Herbig
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依托单位:
Pre-Main Sequence Stars, Herbig-Haro Objects and High- Resolution Studies of Interstellar Material
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批准号:8203115
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项目类别:Standard Grant
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资助金额:$9.84万
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财政年份:1982
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负责人:George Herbig
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依托单位:
Spectroscopic Studies of Interstellar Material and Very Young Stars
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批准号:7726404
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项目类别:Standard Grant
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资助金额:$12.72万
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财政年份:1978
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负责人:George Herbig
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依托单位:
Young Stars and Associated Circumstellar Material
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批准号:7205115
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项目类别:Standard Grant
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资助金额:$18.55万
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财政年份:1973
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负责人:George Herbig
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依托单位:
海外基金