Astro-comb

Astro-comb

An Astro-comb is a new observational tool in astronomy which promises to increase the performance of existing spectrographs by nearly a hundred-fold. The first astro-comb will be installed in 2009 or 2010 on the William Herschel Telescope on the Canary Islands. The device was developed by a team led Chih-Hao Li of Harvard University.

The astro-comb uses a pulsed laser to filter starlight before feeding the signal into a spectrograph. It has the potential to revolutionise astrophysical spectroscopy. The increased sensitivity could aid in the search for extrasolar Earth like planets.

ee also

* Comb filter
* Frequency comb

References

* [http://www.physorg.com/news126370110.html 'Astro-comb' helps search for Goldilocks planet] Physorg.com , April 02, 2008. Accessed April 02, 2008.
* [http://www.astrobio.net/news/modules.php?op=modload&name=News&file=article&sid=2677&mode=thread&order=0&thold=0 Astro-combing for Planets] Astro Biology Magazine, April 09, 2008. Accessed April 11, 2008.
* [http://www.astrobio.net/news/modules.php?op=modload&name=News&file=article&sid=2713&mode=thread&order=0&thold=0 Pulses to Find Planets] Astro Biology Magazine, May 11, 2008. Accessed May 15, 2008. Based on a National Institute of Standards and Technology news release.


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