Autzoo.1466
net.space
utcsrgv!utzoo!henry
Thu Mar 4 19:50:33 1982
quasar redshifts
The Doppler-but-not-distant explanation of quasars WAS taken seriously
at one point, because it is possible to explain the absence of blueshifts,
small redshifts, etc. if the quasars are high-velocity objects expelled
by the core of our own galaxy. This gives them a strong reason to all
be pointing away from us: we are part of the structure that launched
them. This does assume that they were launched in a particular
epoch some time ago and are no longer being launched (or that some
clever aspect of the launch process or the quasars themselves keeps
us from seeing more recent launches).
Maybe the quasars are trying to tell us something: perhaps expulsion
of quasars is the first sign of an exploding galactic core...
Of course, this theory does not sit well with several things found more
recently. There are an awful LOT of the damn things. There is no
other sign of the spectacular event that expelled them. Some of the
quasars found after serious searches started have redshifts indicating
velocities of 0.9c+, which is hard to explain. We don't seem them
around other galaxies, and assuming that ours is unique is rather ad hoc.
And finally, this theory cannot explain why some otherwise-typical-looking
quasars definitely ARE far away. Oh well...
-----------------------------------------------------------------
gopher://quux.org/ conversion by John Goerzen <
[email protected]>
of
http://communication.ucsd.edu/A-News/
This Usenet Oldnews Archive
article may be copied and distributed freely, provided:
1. There is no money collected for the text(s) of the articles.
2. The following notice remains appended to each copy:
The Usenet Oldnews Archive: Compilation Copyright (C) 1981, 1996
Bruce Jones, Henry Spencer, David Wiseman.
