Ntt v, i, and gunn z colour-magnitude diagrams of liller 1 : a globular cluster as metal-rich as the inner bulge stellar population?
dc.contributor.author | Ortolani, Sergio | pt_BR |
dc.contributor.author | Bica, Eduardo Luiz Damiani | pt_BR |
dc.contributor.author | Barbuy, Beatriz | pt_BR |
dc.date.accessioned | 2014-07-22T02:03:30Z | pt_BR |
dc.date.issued | 1996 | pt_BR |
dc.identifier.issn | 0004-6361 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/98348 | pt_BR |
dc.description.abstract | We carried out V RI and Gunn z observations of the obscured globular cluster Liller 1. The cluster is so reddened (Av ≈ 9.0) that it is at the detection limit in V. The RGB in I vs. (I–z) shows a strong curvature. Recalling that the nearly solar metallicity globular clusters NGC 6553 and NGC 6528 present similar blanketing effects only in the visible bandpasses, we conclude that Liller 1 is considerably more metal-rich than these clusters. The CMD comparison of Liller 1 with the inner bulge field around it (located ≈ 5° from the nucleus), suggests that the cluster is as metallic as the most metallic fraction of this inner bulge population. Similarly deep I and z observations at ≈ 0.5° away from Liller 1, at the nominal position of Grindlay 1 do not reveal any cluster. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Astronomy and Astrophysics. Berlin. Vol. 306, no. 1 (Feb. 1996), p. 134-140 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Galaxy: globular clusters: individual Liller 1 | en |
dc.subject | Astrofisica extragalatica | pt_BR |
dc.subject | Stars: HR diagram | en |
dc.subject | Aglomerados globulares | pt_BR |
dc.subject | Stars: abundances | en |
dc.subject | Evolucao estelar | pt_BR |
dc.subject | Estrelas : Abundancia | pt_BR |
dc.subject | Metalicidade : Populacoes estelares | pt_BR |
dc.title | Ntt v, i, and gunn z colour-magnitude diagrams of liller 1 : a globular cluster as metal-rich as the inner bulge stellar population? | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000037749 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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