ESO Future Facilities to Probe Fundamental Physical Constants

被引：0
|
作者：
Molaro, Paolo [1 ]
Liske, Jochen [2 ]
机构：
[1] INAF Osservatorio Astron Trieste, Via GB Tiepolo 11, Trieste, Italy
[2] ESO, Munich, Germany
来源：
FROM VARYING COUPLINGS TO FUNDAMENTAL PHYSICS | 2011年
关键词：
WAVELENGTH CALIBRATION;
D O I：
10.1007/978-3-642-19397-2_15
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Following HARPS, two ESO projects are aimed at the ambitious goal of trying to reach the highest possible precision in measuring the radial velocity of astronomical sources. ESPRESSO spectrograph, located at the incoherent combined 4VLT focus, but able to work either with one or all VLT units, and CODEX for E-ELT will mark ESO roadmap towards the cm s(-1) level of precision and possibly to an unlimited temporal baseline. By providing photon noise limited measures their promise is to improve the present limits in the variability of fundamental physical constants by one and two orders of magnitude, respectively, thus allowing for instance to verify the claim discussed at this conference by John Webb of a possible spatial dipole in the variation of the fine structure constant.
引用
收藏
页码：147 / +
页数：2
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