'Maximum disk' presentation slideshows

There is a very important component that cannot be seen at all

There is a very important component that cannot be seen at all. How do we know it is there ? Almost all galaxies have a dark halo .... in other spirals, we see its gravitational effect on their rotation curves. the dark halo. For example. Rotation at large radii is much faster than can

644 views • 64 slides

The Stellar Populations, Mass-to-Light Ratios and Dark Matter in Spiral Galaxies

The Stellar Populations, Mass-to-Light Ratios and Dark Matter in Spiral Galaxies. Roelof S. de Jong Steward Observatory. Eric Bell Rob Kennicutt Rob Swaters Rob Olling Don McCarthy Cedric Lacey. Overview. Introduction Ages and metallicities of stellar populations description of method

538 views • 38 slides

A New Approach to File System Cache Writeback of Application Data

162 views • 16 slides