The central density cusp of the Sagittarius dwarf spheroidal galaxy

L. Monaco, M. Bellazzini, F. R. Ferraro, E. Pancino

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)

Abstract

We present an analysis of the density profile in the central region of the Sagittarius dwarf spheroidal galaxy. A strong density enhancement of Sgr stars is observed. The position of the peak of the detected cusp is indistinguishable from the centre of M54. The photometric properties of the cusp are fully compatible with those observed in the nuclei of dwarf elliptical galaxies, indicating that the Sgr dSph would appear as a nucleated galaxy independently of the presence of M54 at its centre.

Original languageEnglish
Pages (from-to)1396-1402
Number of pages7
JournalMonthly Notices of the Royal Astronomical Society
Volume356
Issue number4
DOIs
Publication statusPublished - 1 Feb 2005

Keywords

  • Galaxies: dwarf
  • Galaxies: nuclei
  • Local Group
  • Stars: Population II

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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