A survey for dwarf galaxy remnants around 14 globular clusters in the outer halo
Author | dc.contributor.author | Sollima, A. | |
Author | dc.contributor.author | Martínez Delgado, David | |
Author | dc.contributor.author | Muñoz Vidal, Ricardo Rodrigo | |
Author | dc.contributor.author | Carballo-Bello, J. A. | |
Author | dc.contributor.author | Valls-Gabaud, D. | |
Author | dc.contributor.author | Grebel, E. K. | |
Author | dc.contributor.author | Santana, F. | |
Author | dc.contributor.author | Cote, P. | |
Author | dc.contributor.author | Djorgovski, S. G. | |
Admission date | dc.date.accessioned | 2018-10-02T16:53:10Z | |
Available date | dc.date.available | 2018-10-02T16:53:10Z | |
Publication date | dc.date.issued | 2018-06 | |
Cita de ítem | dc.identifier.citation | MNRAS 476, 4814–4829 (2018) | es_ES |
Identifier | dc.identifier.other | 10.1093/mnras/sty539 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/151918 | |
Abstract | dc.description.abstract | We report the results of a systematic photometric survey of the peripheral regions of a sample of 14 globular clusters in the outer halo of the Milky Way at distances d(GC) > 25 kpc from the Galactic Centre. The survey is aimed at searching for the remnants of the host satellite galaxies where these clusters could originally have been formed before being accreted on to the Galactic halo. The limiting surface brightness varies within our sample, but reaches mu(V), lim = 30-32 mag arcsec(-2). For only two globular clusters (NGC 7492 and Whiting 1; already suggested to be associated with the Sagittarius galaxy), we detect extended stellar populations that cannot be associated with either the clusters themselves or with the surrounding Galactic field population. We show that the lack of substructures around globular clusters at these Galactocentric distances is still compatible with the predictions of cosmological simulations whereby in the outer halo the Galactic globular cluster system is built up through hierarchical accretion at early epochs. | es_ES |
Patrocinador | dc.description.sponsorship | German Research Foundation (DFG) SFB 881 BASAL PFB-06 project FONDECYT 1170364 CONICYT-Chile FONDECYT 3160502 Ministry for the Economy, Development, and Tourism's Programa Iniciativa Cientifica Milenio IC120009 CONICYT's PCI program DPI20140066 NSF AST-1313422 AST-1413600 AST-1518308 CFHT 09AF03 09AC07 09BC02 10AC06 CEA/DAPNIA 09AF03 09AC07 09BC02 10AC06 Las Campanas Observatory, Chile 2010B-0472 | es_ES |
Lenguage | dc.language.iso | en | es_ES |
Publisher | dc.publisher | Oxford University Press | es_ES |
Type of license | dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | * |
Link to License | dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ | * |
Source | dc.source | Monthly Notices of The Royal Astronomical Society | es_ES |
Keywords | dc.subject | Methods: observational | es_ES |
Keywords | dc.subject | Techniques: photometric | es_ES |
Keywords | dc.subject | Stars: population II | es_ES |
Keywords | dc.subject | Globular clusters: general | es_ES |
Keywords | dc.subject | Galaxy: halo | es_ES |
Keywords | dc.subject | Galaxy: structure | es_ES |
Título | dc.title | A survey for dwarf galaxy remnants around 14 globular clusters in the outer halo | es_ES |
Document type | dc.type | Artículo de revista | |
Cataloguer | uchile.catalogador | rgf | es_ES |
Indexation | uchile.index | Artículo de publicación ISI | es_ES |
Files in this item
This item appears in the following Collection(s)
-
Artículos de revistas
Artículos de revistas