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Article
Open AccessThe IAU recommended photometric system for ultraviolet astronomy
In the current era when access to space is becoming easier and at a lower cost thanks to the standardised cubesat technology, numerous missions are expected to be launched to observe, particularly, at ultravio...
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Article
Ram-pressure feeding of supermassive black holes
The majority of ‘jellyfish’ galaxies, characterized by long ‘tentacles’ of gas, also have active nuclei, indicating that gas is being fed to the central supermassive black hole by ram pressure.
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Article
Evolution of Galaxy morphologies in Clusters
We have studied the evolution of galaxian morphologies from ground-based, good-seeing images of 9 clusters at z=0.09-0.25. The comparison of our data with those relative to higher redshift clusters(Dressler et al...