The central density cusp of the Sagittarius dwarf spheroidal galaxy

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

Resultado de la investigación: Article

60 Citas (Scopus)

Resumen

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.

Idioma originalEnglish
Páginas (desde-hasta)1396-1402
Número de páginas7
PublicaciónMonthly Notices of the Royal Astronomical Society
Volumen356
N.º4
DOI
EstadoPublished - 1 feb 2005

Huella dactilar

dwarf galaxies
cusps
elliptical galaxies
galaxies
stars
nuclei
augmentation
profiles
analysis

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

Monaco, L. ; Bellazzini, M. ; Ferraro, F. R. ; Pancino, E. / The central density cusp of the Sagittarius dwarf spheroidal galaxy. En: Monthly Notices of the Royal Astronomical Society. 2005 ; Vol. 356, N.º 4. pp. 1396-1402.
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The central density cusp of the Sagittarius dwarf spheroidal galaxy. / Monaco, L.; Bellazzini, M.; Ferraro, F. R.; Pancino, E.

En: Monthly Notices of the Royal Astronomical Society, Vol. 356, N.º 4, 01.02.2005, p. 1396-1402.

Resultado de la investigación: Article

TY - JOUR

T1 - The central density cusp of the Sagittarius dwarf spheroidal galaxy

AU - Monaco, L.

AU - Bellazzini, M.

AU - Ferraro, F. R.

AU - Pancino, E.

PY - 2005/2/1

Y1 - 2005/2/1

N2 - 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.

AB - 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.

KW - Galaxies: dwarf

KW - Galaxies: nuclei

KW - Local Group

KW - Stars: Population II

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U2 - 10.1111/j.1365-2966.2004.08579.x

DO - 10.1111/j.1365-2966.2004.08579.x

M3 - Article

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VL - 356

SP - 1396

EP - 1402

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

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