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H I deficiency in the spiral galaxies of the Virgo clusterстатья
- Автор: Zasov A.V.
- Журнал: ASTRONOMICHESKII ZHURNAL
- Том: 4
- Год издания: 1978
- Первая страница: 487
- Последняя страница: 492
- Аннотация: It is shown that the low abundance of interstellar gas and the retarded pace of star formation, observed in some Virgo cluster galaxies can be explained by a stripping of gas from the outer parts of member galaxies due to the pressure of intergalactic gas on their gas layers, and by enhanced depletion of gas due to star formation. The more rapid depletion of gas in galaxies as they cross the central part of the cluster should diminish the surface density of the gas to the point where its remnants are swept out by ram pressure from the intergalactic gas. This process appears to represent a possible mechanism for converting spiral cluster galaxies into lenticulars. The decline in the relative number of gas-rich galaxies observed as the X-ray luminosity of the cluster increases is consistent with this hypothesis.
- Добавил в систему: Засов Анатолий Владимирович