The recent paper by Lee and Lee [Phys. Rev. D 69, 127502 (2004)] may strongly leave the impression that astronomers have established that the rotation curves of spiral galaxies are flat. We show that the old paradigm of flat rotation curves lacks, today, any observational support and following it at face value leads to intrinsically flawed alternatives to the standard dark matter scenario. On the other hand, we claim that the rich systematics of spiral galaxy rotation curves, which reveals, in the standard Newtonian gravity framework, the phenomenon of dark matter, in alternative scenarios, works as a unique benchmark.
Comment on "Scalar-tensor gravity coupled to a global monopole and flat rotation curves" / Salucci, Paolo; Gentile, G.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - 73:12(2006), pp. 128501.1-128501.4. [10.1103/PhysRevD.73.128501]
Comment on "Scalar-tensor gravity coupled to a global monopole and flat rotation curves"
Salucci, Paolo;
2006-01-01
Abstract
The recent paper by Lee and Lee [Phys. Rev. D 69, 127502 (2004)] may strongly leave the impression that astronomers have established that the rotation curves of spiral galaxies are flat. We show that the old paradigm of flat rotation curves lacks, today, any observational support and following it at face value leads to intrinsically flawed alternatives to the standard dark matter scenario. On the other hand, we claim that the rich systematics of spiral galaxy rotation curves, which reveals, in the standard Newtonian gravity framework, the phenomenon of dark matter, in alternative scenarios, works as a unique benchmark.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.