| タイトル | An isolated, well-defined infrared cirrus cloud |
| 著者（英） | Shupe, D. L.; Chernoff, D. F.; Herter, T. |
| 著者所属（英） | Cornell Univ. |
| 発行日 | 1990-03-20 |
| 言語 | eng |
| 内容記述 | High spatial resolution H I measurements of a high-latitude FIR cirrus cloud (l = 9 deg, b = 51 deg) were obtained with the Arecibo 310 m telescope. The cloud is well isolated spatially and has a velocity well-separated from other H I clouds, providing an ideal laboratory for studying diffuse interstellar clouds. The Iv(100)/N(H) and Iv(60)/Iv(100) ratios are consistent with the Draine and Anderson model which includes a distribution of grain sizes down to 3 A. The small grains undergo transient heating and affect the 60 micron FIR continuum emission. Current models, however, underpredict Iv(12)/Iv(100) and Iv(25)/Iv(100) by more than a factor of 2. The effects small grains have on the thermal equilibrium of diffuse interstellar clouds are discussed. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 90A28037 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/357413 |
|
