How do bars form in spiral galaxies?
Where can I find reliable information about barred spiral galaxies, ie; how they are formed, theories of their evolution, etc.?
The answer of course depends on how in depth you want to go. The standard
texts on galaxies which are used are:
Binney and Merrifield - Galactic Astronomy (mostly observations)
Binney and Tremaine - Galactic Dynamics (more theoretical)
At a slightly lower level I also like Sparke and Gallagher - Galaxies in the Universe.
There is a page on galaxy formation here from the Paris Observatory which has a reasonable explanation and some movies, however the language is quite technical. Bar formation is actually pretty complicated and has to do with instabilities and resonances being set up in the disk of the galaxy, so I think that a good simple explanation, which is still correct might be hard to find.
Get More 'Curious?' with Our New PODCAST:
- Podcast? Subscribe? Tell me about the Ask an Astronomer Podcast
- Subscribe to our Podcast | Listen to our current Episode
- Cool! But I can't now. Send me a quick reminder now for later.
How to ask a question:
If you have a follow-up question concerning the above subject, submit it here. If you have a question about another area of astronomy, find the topic you're interested in from the archive on our site menu, or go here for help.Table 'curious.Referrers' doesn't existTable 'curious.Referrers' doesn't exist
This page has been accessed 20334 times since January 22, 2003.
Last modified: January 22, 2003 5:50:23 PM
Ask an Astronomer is hosted by the Astronomy Department at Cornell University and is produced with PHP and MySQL.
Warning: Your browser is misbehaving! This page might look ugly. (Details)