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Giant H II regions in the interacting galaxies NGC 4038-4039статья
- Автор: Metlov V.G.
- Журнал: SOVIET ASTRONOMY
- Том: 22
- Год издания: 1978
- Первая страница: 660
- Последняя страница: 663
- Аннотация: Absolute intensities of H-alpha line radiation from H II regions in the interacting galaxy NGC 4038/39 are determined photographically and compared with previous photographic and spectroscopic studies of the same galaxy. Satisfactory agreement is found only if the absorption in NGC 4038/39 amounts to more than 3 mag in H-beta. It is suggested that a substantial amount of the absorbing material should be concentrated in and near the H II regions. In this case, the total H-alpha luminosity would be around 3 x 10 to the 42nd erg/s, the mass of the H II regions would be about 100 million solar masses, and the mean absolute magnitudes of the superassociations of hot stars and their associated H II regions would be -18. It is concluded that such values are apparently possible in both a model of two interacting galaxies with a large quantity of gas and a model of a single object in which fragmentation is occurring.
- Добавил в систему: Метлов Владимир Георгиевич