SIMBAD references

2016MNRAS.461.3702R - Mon. Not. R. Astron. Soc., 461, 3702-3713 (2016/October-1)

Extended stellar substructure surrounding the Bootes I dwarf spheroidal galaxy.

RODERICK T.A., MACKEY A.D., JERJEN H. and DA COSTA G.S.

Abstract (from CDS):

We present deep stellar photometry of the Bootes I dwarf spheroidal galaxy in g- and i-band filters, taken with the Dark Energy Camera at Cerro Tololo in Chile. Our analysis reveals a large, extended region of stellar substructure surrounding the dwarf, as well as a distinct overdensity encroaching on its tidal radius. A radial profile of the Bootes I stellar distribution shows a break radius indicating the presence of extra-tidal stars. These observations strongly suggest that Bootes I is experiencing tidal disruption, although not as extreme as that exhibited by the Hercules dwarf spheroidal. Combined with revised velocity dispersion measurements from the literature, we see evidence suggesting the need to review previous theoretical models of the Bootes I dwarf spheroidal galaxy.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: dwarf - galaxies: evolution - galaxies: fundamental parameters - galaxies: individual: Bootes I - galaxies: individual: Bootes I

VizieR on-line data: <Available at CDS (J/MNRAS/461/3702): catalog.dat>

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 12

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