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Hot white dwarf stars are the ideal probe for a relationship between the fine-structure constant and strong gravitational fields, providing us with an opportunity for a direct observational test.
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Dzuba, V.A.; Flambaum, V.V.; Webb, J.K. Space-time variation of physical constants and relativistic corrections in atoms. Phys. Rev. Lett. 1999
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Webb, J.K.; Flambaum, V.V.; Churchill, C.W.; Drinkwater, M.J.; Barrow, J.D. Search for time variation of the fine structure constant. Phys. Rev. Lett. 1999
1999
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Webb, J.K.; Murphy, M.T.; Flambaum, V.V.; Dzuba, V.A.; Barrow, J.D.; Churchill, C.W.; Prochaska, J.X.; Wolfe, A.M. Further evidence for cosmological evolution of the fine structure constant. Phys. Rev. Lett. 2001
2001
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Murphy, M.T.; Webb, J.K.; Flambaum, V.V.; Dzuba, V.A.; Churchill, C.W.; Prochaska, J.X.; Barrow, J.D. Wolfe, A.M. Possible evidence for a variable fine-structure constant from QSO absorption lines: Motivations, analysis and results. Mon. Not. R. Astron. Soc . 2001
2001
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Azarov, V.I.; Tchang-Brillet, W.Ü.L.; Wyart, J.F.; Launay, F.; Benharrous, M. Determination of the 3d34d and 3d35s Configurations of Fe V. Phys. Scr. 2001
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Magueijo, J.; Barrow, J.D.; Sandvik, H.B. Is it e or is it c? Experimental tests of varying alpha. Phys. Lett. B 2002
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Bauch, A.; Weyers, S. New experimental limit on the validity of local position invariance. Phys. Rev. D 2002
2002
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Barstow, M.A.; Good, S.A.; Holberg, J.B.; Hubeny, I.; Bannister, N.P.; Bruhweiler, F.C.; Burleigh, M.R.; Napiwotzki, R. Heavy-element abundance patterns in hot DA white dwarfs. Mon. Not. R. Astron. Soc. 2003
2003
Cited alongside, same era.
2003
Cited alongside, same era.
Good, S.A.; Barstow, M.A.; Burleigh, M.R.; Dobbie, P.D.; Holberg, J.B.; Hubeny, I. Heavy element abundances in DAO white dwarfs measured from FUSE data. Mon. Not. R. Astron. Soc. 2005
2005
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Ferrell, S.J.; Cingöz, A.; Lapierre, A.; Nguyen, A.T.; Leefer, N.; Budker, D.; Flambaum, V.V.; Lamoreaux, S.K.; Torgerson, J.R. Investigation of the gravitational-potential dependence of the fine-structure constant using atomic dysprosium. Phys. Rev. A 2007
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Leefer, N.; Weber, C.T.M.; Cingöz, A.; Torgerson, J.R.; Budker, D. New limits on variation of the fine-structure constant using atomic dysprosium. Phys. Rev. Lett. 2013
2013
Later among the works it cites.
Berengut, J.C.; Flambaum, V.V.; Ong, A.; Webb, J.K.; Barrow, J.D.; Barstow, M.A.; Preval, S.P.; Holberg, J.B. Limits on the dependence of the fine-structure constant on gravitational potential from white-dwarf spectra. Phys. Rev. Lett. 2013
2013
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Latour, M.; Fontaine, G.; Chayer, P.; Brassard, P. A Non-LTE Analysis of the Hot Subdwarf O Star BD+ 28 ∘
2013
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Kramida, A. Energy levels and spectral lines of quadruply ionized iron (Fe V). Astrophys. J. Suppl. Ser. 2014
2014
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Ward, J.W.; Nave, G. Analysis of Fe V and Ni V wavelength standards in the vacuum ultraviolet. Am. Astron. Soc. Meet. Abstr. 2015
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Cited alongside, same era.
Fortier, T.M.; Ashby, N.; Bergquist, J.C.; Delaney, M.J.; Diddams, S.A.; Heavner, T.P.; Hollberg, L.; Itano, W.M.; Jefferts, S.R.; Kim, K.; et al. Precision atomic spectroscopy for improved limits on variation of the fine structure constant and local position invariance. Phys. Rev. Lett. 2007
2007
Cited alongside, same era.
Flambaum, V.V.; Shuryak, E.V. How changing physical constants and violation of local position invariance may occur? AIP Conf. Proc. 2008
2008
Cited alongside, same era.
Blatt, S.; Ludlow, A.D.; Campbell, G.K.; Thomsen, J.W.; Zelevinsky, T.; Boyd, M.M.; Ye, J.; Baillard, X.; Fouché, M.; Le Targat, R.; et al. New limits on coupling of fundamental constants to gravity using Sr 87 optical lattice clocks. Phys. Rev. Lett . 2008
2008
Cited alongside, same era.
Barrow, J.D.; Shaw, D.J. Varying alpha: New constraints from seasonal variations. Phys. Rev. D 2008
2008
Cited alongside, same era.
Ayres, T.R. StarCAT: A catalog of Space Telescope Imaging Spectrograph ultraviolet echelle spectra of stars. Astrophys. J. Suppl. Ser. 2010
2010
Cited alongside, same era.
Guéna, J.; Abgrall, M.; Rovera, D.; Rosenbusch, P.; Tobar, M.E.; Laurent, P.; Clairon, A.; Bize, S. Improved tests of local position invariance using Rb 87 and Cs 133 fountains. Phys. Rev. Lett. 2012
2012
Cited alongside, same era.
Ziegler, M.; Rauch, T.; Werner, K.; Köppen, J.; Kruk, J.W. BD-22 ∘
2012
Cited alongside, same era.
2015
Later among the works it cites.
Ward, J.W.; Nave, G. Improved wavelengths for Fe V and Ni V for analysis of spectra of white dwarf stellar stars. IAU Gen. Assemb. 2015
2015
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Chayer, P.; Dixon, W.V.; Fullerton, A.W.; Ooghe-Tabanou, B.; Reid, I.N. FUSE, STIS and Keck spectroscopic analysis of the UV-bright star vZ 1128 in M3 (NGC 5272). Mon. Not. R. Astron. Soc. 2015
2015
Later among the works it cites.
Minazzoli, O.; Hees, A. Dilatons with intrinsic decouplings. Phys. Rev. D 2016
2016
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Ward, J.W.; Nave, G. Intensity and energy level analysis of the vacuum ultraviolet spectrum of four times ionize nickel (Ni V). Am. Astron. Soc. Meet. Abstr. 2016
2016
Later among the works it cites.
Dzuba, V.A.; Flambaum, V.V. Limits on gravitational Einstein Equivalence Principle violation from monitoring atomic clock frequencies during a year. Phys. Rev. D 2017
2017
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