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- 花田 英夫
- 国立天文台
書誌事項
- タイトル別名
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- Detectability of Non-Newtonian Gravity by Gravity Gradiometry.
- 重力勾配測定による非ニュートン重力場の検出限界〔英文〕
- ジュウリョク コウバイ ソクテイ ニ ヨル ヒ ニュートン ジュウリョクバ ノ
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説明
It is possible to detect the non-Newtonian gravity due to the Earth's mass by measuring gravity gradient over a wide range of altitude since there is a characteristic pattern in the relation between the value of the non-Newtonian gradient and the altitude on a logarithmic scale. The value of the non-Newtonian gravity gradient on the Earth is estimated at about a×10-6s-2 where α is the coefficient of the additional YUKAWA term. The effects of harmonics of gravity potential with degrees higher than 3 and uncertainty of density of the Earth's interior, on the other hand, are less than 10-10s-2 and they can be corrected to as small as in the range of 10-12s-2 with an reliable Earth model, which is equivalent to the non-Newtonian gravity gradient in the case of α=10-6. A gravity gradiometer with a couple of superconducting accelerometer or that with high sensitive Fabry-Perot interferometer can have the sensitivity better than 10-13s-2 and it is the most effective for the detection of the non-Newtonian gravity on the Earth . The non-Newtonian gravity gradient due to the Earth is detectable if the coefficient α is larger than 10-6 and the range λ is shorter than 105 m by the gravity gradient measurement.
収録刊行物
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- 測地学会誌
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測地学会誌 38 (3), 221-237, 1992
日本測地学会
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詳細情報 詳細情報について
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- CRID
- 1390001204066217344
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- NII論文ID
- 130004189585
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- NII書誌ID
- AN00134900
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- ISSN
- 2185517X
- 00380830
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- NDL書誌ID
- 3792758
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可