| タイトル | Color gradients in cooling flow cluster central galaxies and the ionization of cluster emission line systems |
| 著者（英） | Romanishin, W. |
| 著者所属（英） | Arizona State Univ. |
| 発行日 | 1988-01-01 |
| 言語 | eng |
| 内容記述 | Preliminary results are given for a program to measure color gradients in the central galaxies in clusters with a variety of cooling flow rates. The objectives are to search for extended blue continuum regions indicative of star formation, to study the spatial distribution of star formation, and to make a quantitative measure of the amount of light from young stars, which can lead to a measure of the star formation rate (for an assumed initial mass function). Four clusters with large masses and large cluster H-alpha emission fluxes are found to have an excess of blue light concentrated to the centers of the cluster central galaxy. Assumption of a disk IMF leads to the conclusion that the starlight might play a major role in ionizing the emission line gas in these clusters. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 89A27539 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/365211 |
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