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Conclusion

When DBNN was used for candidate selection, it was found that one could be confident that the predicted candidates would be a quasar upto 98 out of 100 cases. This would seem to have solved the problem,but the story does not end here. We are talking of trillions of trillions of objects in the sky. 2% of them is still a very large number. Only when we have a method to say that 100 out of 100 are quasars, would we stop the hunt for quasar hunting tools.

The moral of the story is this. The hunt for quasars is an on going process. There is yet to be known and yet more to be understood. Join the army!

I would recommend that you browse through the following sites to know more about sky surveys and challenging topics in astronomy:

http://cas.sdss.org/dr5/en/
http://en.wikipedia.org/wiki/Quasar
http://www.phys.vt.edu/ $\sim$ jhs/faq/quasars.html
http://laserstars.org/news/3C405.html
http://seds.lpl.arizona.edu/ $\sim$ spider/spider/Misc/qso.html

Ninan Sajeeth Philip 2007-05-31