The Galactic Center Companion by Gregory Benford

Author:Gregory Benford [Benford, Gregory]
Language: eng
Format: epub
Tags: galactic center, astrophysics, space opera, hard science fiction, far future, AI, machine intelligence, galactic, space war
Publisher: Gregory Benford
Published: 2014-10-12T16:00:00+00:00

Galactic Center Astronomy, 2013

The Basics: how the sky looks there

We cannot see the bright central hub of our galaxy because a dark cloud blocks the view in the Sagittarius constellation.

Photo courtesy NASA

The very center is a whirl of gas, strange filaments, and stars whose great waltzing orbits take them around the immense black hole.

A supermassive black hole resides in the bright white area, right of the center. This composite photograph covers about half of a degree of the sky. Most revealing are the strange long filaments in the innermost hundreds of light years of the center, visible to us only in frequencies around a gigahertz—the same region where our cell phones communicate. A gigahertz map shows them:

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