MUSCA project

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MUSCA project

Post by Borislav on 30th July 2010, 1:34 pm

Micro-arcsecond University of Sydney Companion Astrometry
http://nexsci.caltech.edu/workshop/2010/pops/YitpingKok_poster.pdf

Interesting project. Particularly promising seems the search using this Australian interferometer planet in the Alpha Centauri down to Earth mass. And there are no special difficulties - simply measure the angular distance between the stars of the binary system with an accuracy of a few angular microseconds. There is no need to calibrate the stars.

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Re: MUSCA project

Post by ciceron on 30th July 2010, 2:28 pm

nice... we'll have to keep an eye on them.

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Re: MUSCA project

Post by Borislav on 1st August 2010, 12:52 pm

The only there is problem with this method - to understand around a precisely star rotates found planet in a binary system. I think so still need additional calibration stars.

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Re: MUSCA project

Post by Sirius_Alpha on 1st August 2010, 12:56 pm

In the case of α Cen, there's plenty of stars in that area of the sky.

I wonder, can one use both stars in a binary system as each other's calibration?

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Re: MUSCA project

Post by Borislav on 1st August 2010, 1:11 pm

Sirius_Alpha wrote:I wonder, can one use both stars in a binary system as each other's calibration?

Yes. There is even a valid project - PHASES (Palomar High-precision Astrometric Search for Exoplanet Systems).
http://www.vlti.org/events/assets/4/documents/PHASES.pdf

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