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Gravitational mass measurement of Proxima Centauri
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Author:  ajtribick [ Thu, 05-07-18, 22:02 GMT ]
Post subject:  Gravitational mass measurement of Proxima Centauri

Using microlensing to measure the mass of the nearest star to our solar system...

Zurlo et al. "The gravitational mass of Proxima Centauri measured with SPHERE from a microlensing event"
https://arxiv.org/abs/1807.01318

The measurement puts the mass at 0.150 solar masses with an error of around 40%. This is consistent with previous mass determinations, e.g. the one used in the discovery paper for the planet Proxima b which used a figure of 0.1221±0.0022 solar masses.

Author:  t00fri [ Fri, 06-07-18, 14:19 GMT ]
Post subject:  Re: Gravitational mass measurement of Proxima Centauri

The lensing method looks quite contrived, but it should work.

Fridger

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