Quote:
Originally Posted by Peter Ward
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There is a
serious scientific question in your image about the size (big?)(small?) of the bulge component of M104!
Galaxy Photometrists are
still arguing about the
nature and the
size and the
number of the
spheroidal morphological component/components of this galaxy:
- how big is the bulge?
- how big is the halo?
- Or are the bulge and the halo, taken together as a unit, a single morphological component?
Cheers,
Robert
Astronomers have had similar problems with the bulge vs. the halo of our nearby neighbour M31 .
The resolution of these conundrums is usually found by separating out the various components of a galaxy....... by means of their constituent stellar orbits, stellar ages, and stellar heavy-element enrichments.
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Also muddying the waters in this regard is the fact that some galaxies also have very thick (broad)
disk components.
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