Astronomy Without A Telescope – No Metal, No Planet?

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The spiral galaxy NGC 4565, a rough analogue of the Milky Way – and with distinctly dusty outer regions. Credit: ESO.

A Japanese team of [astronomers][3] have reported a strong correlation between the metallicity of dusty protoplanetary disks and their longevity. From this finding they propose that low metallicity [stars][4] are much less likely to have [planets][5], including [gas giants][6], due to the shorter lifetime of their protoplanetary disks. (…) Read the rest of [Astronomy Without A Telescope – No Metal, No Planet?][7] (499 words)

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(C) Steve Nerlich for [Universe Today][8], 2010. | [Permalink][7] | [No comment][9] | Add to [del.icio.us][10] Post

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[1]: http://www.universetoday.com/wp-content/uploads/2010/10/NGC4565-ESOr-580×409.jpg [2]: http://www.universetoday.com/wp-content/uploads/2010/10/NGC4565-ESOr.jpg [3]: http://www.universetoday.com/74522/astronomer/ () [4]: http://www.universetoday.com/24184/stars/ () [5]: http://www.universetoday.com/35923/planet/ () [6]: http://www.universetoday.com/33506/gas-giants/ () [7]: http://www.universetoday.com/75913/astronomy-without-a-telescope-no-metal-no-planet/ [8]: http://www.universetoday.com [9]: http://www.universetoday.com/75913/astronomy-without-a-telescope-no-metal-no-planet/#comments [10]: http://del.icio.us/post?url=http://www.universetoday.com/75913/astronomy-without-a-telescope-no-metal-no-planet/&title=Astronomy Without A Telescope – No Metal, No Planet? [11]: http://www.universetoday.com/tag/protoplanetary-disks/ [12]: http://planetozh.com/blog/my-projects/wordpress-plugin-better-feed-rss/ [13]: http://planetozh.com/blog/ [14]: http://feedads.g.doubleclick.net/~a/Qlx_7wK5SDxdpN5Qc3VOIBKk1J0/0/di [15]: http://feedads.g.doubleclick.net/~a/Qlx_7wK5SDxdpN5Qc3VOIBKk1J0/0/da [16]: http://feedads.g.doubleclick.net/~a/Qlx_7wK5SDxdpN5Qc3VOIBKk1J0/1/di [17]: http://feedads.g.doubleclick.net/~a/Qlx_7wK5SDxdpN5Qc3VOIBKk1J0/1/da [18]: http://feeds.feedburner.com/~ff/universetoday/pYdq?d=yIl2AUoC8zA [19]: http://feeds.feedburner.com/~ff/universetoday/pYdq?a=5y9lwSzqSGg:J_MGhTKL1nk:yIl2AUoC8zA [20]: http://feeds.feedburner.com/~ff/universetoday/pYdq?d=dnMXMwOfBR0 [21]: http://feeds.feedburner.com/~ff/universetoday/pYdq?a=5y9lwSzqSGg:J_MGhTKL1nk:dnMXMwOfBR0 [22]: http://feeds.feedburner.com/~ff/universetoday/pYdq?d=7Q72WNTAKBA [23]: http://feeds.feedburner.com/~ff/universetoday/pYdq?a=5y9lwSzqSGg:J_MGhTKL1nk:7Q72WNTAKBA [24]: http://feeds.feedburner.com/~ff/universetoday/pYdq?i=5y9lwSzqSGg:J_MGhTKL1nk:D7DqB2pKExk [25]: http://feeds.feedburner.com/~ff/universetoday/pYdq?a=5y9lwSzqSGg:J_MGhTKL1nk:D7DqB2pKExk

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