Galaxy Rotation Curves without Nonbaryonic Dark Matter

By J. Brownstein, J. W. Moffat. 2005

301 citations recorded by the source corpus.

We apply the modified acceleration law obtained from Einstein gravity coupled to a massive skew-symmetric field Fμνλ to the problem of explaining galaxy rotation curves without exotic dark matter. Our sample of galaxies includes low surface brightness (LSB) and high surface brightness (HSB) galaxies and an elliptical galaxy. In those cases for which photometric data are available, a best fit via the single parameter (M/L)stars to the luminosity of the gaseous (H I plus He) and luminous stellar disks is obtained. In addition, a best fit to the rotation curves of galaxies is obtained in terms of a parametric mass distribution (independent of luminosity observations)—a two-parameter fit to the total galactic mass (or mass-to-light ratio M/L) and a core radius associated with a model of the galaxy cores—using a nonlinear least-squares fitting routine including estimated errors. The fits are compared to those obtained using Milgrom's phenomenological MOND model and to the predictions of the Newtonian/Kepler acceleration law.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/63fbcc8a4b037377810d77b298e4e3628fc37245

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In Astronomy and Astrophysics

1. Pavel Kroupa
2. M. Pawlowski
3. S. McGaugh
4. B. Famaey
5. J. Brownstein
6. J. W. Moffat
7. Sohrab Rahvar
8. H. Jerjen

Citations in the corpus

• The MOG weak field approximation and observational test of galaxy rotation curves (2013, methodology): “The predictions of MOG for the rotation curves of galaxies have been compared to the data (Brownstein & Moffat 2006a; Brownstein 2009 ), using a static spherically symmetric point mass solution derived from the field equations.”
• Local-Group tests of dark-matter concordance cosmology - Towards a new paradigm for structure formation (2010, background): “…demonstrated that spiral galaxy rotation curves are well recovered in MOND purely by the baryon distribution without any parameter adjustments (Sanders & McGaugh 2002; McGaugh 2004, 2005a; Sanders & Noordermeer 2007), and MOG is reported to also do well on this account (Brownstein & Moffat 2006).”
• Analysis of rotation curves in the framework of Rn gravity (2007, background): “…detected, state of matter, dark matter (Rubin 1983), a phenomenological modification of Newtonian dynamics (Milgrom 1983; Sanders & McGaugh 2002; Brownstein & Moffat 2006; Bekenstein 2006) and higher-order gravitational theories (originally devoted to solving the dark energy issue; see, for…”
• THE BARYONIC TULLY–FISHER RELATION OF GAS-RICH GALAXIES AS A TEST OF ΛCDM AND MOND (2011, background): “If these theories can fit rotation curves (Brownstein & Moffat 2006; Mannheim & O’Brien 2010), then they will also fit the BTFR (Moffat & Toth 2011).”
• The MOG weak field approximation – II. Observational test of Chandra X-ray clusters (2013, methodology): “…to test observationally a covariant MOdified Gravity (MOG) theory, also called Scalar– Tensor–Vector Gravity (STVG) at the scale of clusters of galaxies (Moffat 2006; Moffat & Toth 2008; Moffat & Toth 2009; Moffat & Toth 2013; Brownstein & Moffat 2006; Brownstein & Moffat 2006; Brownstein 2009).”
• The Bullet Cluster 1E0657-558 evidence shows modified gravity in the absence of dark matter (2007, methodology): “…running of the MOG mass scale, M0, depending on the computed total cluster mass, Mgas, according to the large (> 100) galaxy cluster survey of Brownstein and Moffat (2006a) for the main and subcluster (shown graphically in Figure 6), and the overall best-fit to the κ-map; and the results for…”