The central density cusp of the Sagittarius dwarf spheroidal galaxy

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

doi:10.1111/j.1365-2966.2004.08579.x

The central density cusp of the Sagittarius dwarf spheroidal galaxy

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

Exact Sciences School

Research output: Contribution to journal › Article › peer-review

70 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 language	English
Pages (from-to)	1396-1402
Number of pages	7
Journal	Monthly Notices of the Royal Astronomical Society
Volume	356
Issue number	4
DOIs	https://doi.org/10.1111/j.1365-2966.2004.08579.x
Publication status	Published - 1 Feb 2005

Keywords

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

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1111/j.1365-2966.2004.08579.x

Cite this

@article{d4c0cc748ea24876b290ecabff67c4da,

title = "The central density cusp of the Sagittarius dwarf spheroidal galaxy",

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.",

keywords = "Galaxies: dwarf, Galaxies: nuclei, Local Group, Stars: Population II",

author = "L. Monaco and M. Bellazzini and Ferraro, {F. R.} and E. Pancino",

year = "2005",

month = feb,

day = "1",

doi = "10.1111/j.1365-2966.2004.08579.x",

language = "English",

volume = "356",

pages = "1396--1402",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "4",

}

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

UR - http://www.scopus.com/inward/record.url?scp=13444306691&partnerID=8YFLogxK

U2 - 10.1111/j.1365-2966.2004.08579.x

DO - 10.1111/j.1365-2966.2004.08579.x

M3 - Article

AN - SCOPUS:13444306691

SN - 0035-8711

VL - 356

SP - 1396

EP - 1402

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

The central density cusp of the Sagittarius dwarf spheroidal galaxy

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this