Halo acceleration relation

Yong Tian, Chung Ming Ko

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Recently, from the new Spitzer Photometry and Accurate Rotation Curves data, McGaugh, Lelli & Schombert reported a tight radial acceleration relation between the observed total acceleration and the acceleration produced by baryons in spiral galaxies. The relation can be fitted by different functions. However, these functions can be discerned if we express the data in the form of a halo acceleration relation. The data reveals a maximum in the halo acceleration. We examined the NFW (cusp) and Burkert (core) profiles in the context of dark matter and different parameter families of the interpolating function in the framework of modified Newtonian dynamics.

Original languageEnglish
Pages (from-to)L41-L46
JournalMonthly Notices of the Royal Astronomical Society: Letters
Volume488
Issue number1
DOIs
StatePublished - 6 Jun 2019

Keywords

  • dark matter
  • galaxies: elliptical and lenticular, cD
  • galaxies: kinematics and dynamics
  • gravitation
  • gravitational lensing: strong

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