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Stacy McGaugh (born 11 January 1964) is an American astronomer and professor in the Department of Astronomy at Case Western Reserve University in Cleveland, Ohio. His fields of specialty include low surface brightness galaxies,〔Bothun, G., Impey, C., & McGaugh, S. 1997, PASP, 109, 745 ("Low-Surface-Brightness Galaxies: Hidden Galaxies Revealed" ).〕 galaxy formation and evolution,〔McGaugh, S.S. (1998) ("How Galaxies Don't Form" )〕 tests of dark matter〔McGaugh, S.S., & de Blok, W.J.G. 1998, ApJ, 499, 41 ("Testing the Dark Matter Hypothesis with Low Surface Brightness Galaxies and Other Evidence" )〕 and alternative hypotheses,〔Sanders, Robert H.; McGaugh, Stacy S. (2002). ( "Modified Newtonian Dynamics as an Alternative to Dark Matter". ) ''Annual Review of Astronomy and Astrophysics'', 40, 263-317.〕〔Famaey, B., & McGaugh, S.S. 2012, Living Reviews in Relativity, 15, 10. ("Modified Newtonian Dynamics (MOND): Observational Phenomenology and Relativistic Extensions" )〕 and measurements of cosmological parameters.〔McGaugh, Stacy S. (1999). ( "Distinguishing between Cold Dark Matter and Modified Newtonian Dynamics: Predictions for the Microwave Background". ) ''The Astrophysical Journal'', 523, L99-L102.〕 Stacy McGaugh was an undergraduate student at MIT (S.B. 1985) and a graduate student at Princeton and the University of Michigan (Ph.D. 1992). He held postdoctoral appointments at Cambridge University, the Carnegie Institution of Washington, and Rutgers University before joining the faculty of the University of Maryland in 1998. He moved to Case Western in 2012. He is married with two children. He is a Distinguished Alumnus of Flint (Michigan) Northern High School (2001) and of the Astronomy Department of the University of Michigan (2013). Known in the field of extragalactic astronomy for his early work on Low Surface Brightness Galaxies〔McGaugh, S.S. 1994, ApJ, 426, 135 ("Oxygen abundances in low surface brightness disk galaxies" )〕 and the elemental abundances in HII Regions,〔McGaugh, S.S. 1991, ApJ, 380, 140. ("H II region abundances - Model oxygen line ratios" )〕 McGaugh has also contributed to the study of the kinematics of galaxies, being among the first to point out that low surface brightness galaxies are dark matter dominated and that they pose the cuspy halo problem.〔de Blok, W.J.G., McGaugh, S.S., & van der Hulst, J.M. 1996, MNRAS, 283, 18. ("HI Observations of Low Surface Brightness Galaxies: Probing Low Density Galaxies" )〕 He also coined the expression "baryonic Tully–Fisher relation.〔McGaugh, S.S., Schombert, J.M., Bothun, G.D., & de Blok, W.J.G. 2000, ApJ, 533, L99 ("The Baryonic Tully-Fisher Relation" )〕" He predicted the first to second peak amplitude ratio of the acoustic power spectrum of the Cosmic microwave background radiation.〔McGaugh, S.S. 1999, ApJ, 523, L99 ("Distinguishing Between CDM and MOND: Predictions for the Microwave Background" )〕〔McGaugh, S.S. 2000, ApJ, 541, L33 ("BOOMERanG Data Suggest a Purely Baryonic Universe" )〕 McGaugh found surprising support for the Modified Newtonian dynamics proposed by Mordehai Milgrom as an alternative to Dark matter in his work on Low Surface Brightness Galaxies.〔McGaugh, S.S., & de Blok, W.J.G. 1998, ApJ, 499, 66 ("Testing the Hypothesis of Modified Dynamics with Low Surface Brightness Galaxies and Other Evidence" )〕〔McGaugh, S.S. 2011, Phys. Rev. Lett., 106, 121303 ("A Novel Test of the Modified Newtonian Dynamics with Gas Rich Galaxies" )〕 This has proven to be very controversial since it implies the non-existence of the non-baryonic dark matter that is central to physical cosmology. Nevertheless, his predictions for the mass distribution of the Milky Way〔2008, ApJ, 683, 137 ("Milky Way Mass Models and MOND" )〕 and the velocity dispersions of the dwarf Spheroidal satellites of the Andromeda spiral galaxy〔McGaugh, S.S., & Milgrom, M. 2013, ApJ, 766, 22 ("Andromeda Dwarfs in Light of Modified Newtonian Dynamics" )〕 have largely been confirmed by subsequent observations.〔Bovy, J., & Rix, H.-W. 2013, arXiv:1309.0809 ("A direct dynamical measurement of the Milky Way's disk surface density profile, disk scale length, and dark matter profile at 4 kpc < R < 9 kpc" )〕〔McGaugh, S.S., & Milgrom, M. 2013, ApJ, 775, 139 ("Andromeda Dwarfs in Light of MOND. II. Testing Prior Predictions" )〕 ==See also== *Low Surface Brightness Galaxies *Dark matter *Modified Newtonian dynamics 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Stacy McGaugh」の詳細全文を読む スポンサード リンク
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