Multi-conjugate adaptive optics VLT imaging of the distant old open cluster FSR 1415
dc.contributor.author | Momany, Yazan | pt_BR |
dc.contributor.author | Ortolani, Sergio | pt_BR |
dc.contributor.author | Bonatto, Charles Jose | pt_BR |
dc.contributor.author | Bica, Eduardo Luiz Damiani | pt_BR |
dc.contributor.author | Barbuy, Beatriz | pt_BR |
dc.date.accessioned | 2014-04-03T01:51:27Z | pt_BR |
dc.date.issued | 2008 | pt_BR |
dc.identifier.issn | 0035-8711 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/90275 | pt_BR |
dc.description.abstract | We employ the recently installed near-infrared Multi-Conjugate Adaptive Optics demonstrator (MAD) to determine the basic properties of a newly identified, old and distant, Galactic open cluster (FSR 1415). The MAD facility remarkably approaches the diffraction limit, reaching a resolution of 0.07 arcsec (in K), that is also uniform in a field of ~ 1.8 arcmin in diameter. The MAD facility provides photometry that is 50 per cent complete at K ~ 19. This corresponds to about 2.5 mag below the cluster main-sequence turn-off. This high-quality data set allows us to derive an accurate heliocentric distance of 8.6 kpc, a metallicity close to solar and an age of ~ 2.5 Gyr. On the other hand, the deepness of the data allows us to reconstruct (completeness-corrected) mass functions (MFs) indicating a relatively massive cluster, with a flat core MF. The Very Large Telescope/MAD capabilities will therefore provide fundamental data for identifying/analysing other faint and distant open clusters in the Galaxy III and IV quadrants. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Monthly notices of the royal astronomical society. Oxford. Vol. 391, no. 4 (Dec. 2008), p. 1650-1658 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Aglomerados abertos e associações | pt_BR |
dc.subject | Instrumentation: adaptive optics | en |
dc.subject | Techniques: photometric | en |
dc.subject | Populacoes estelares | pt_BR |
dc.subject | Stars: Population II | en |
dc.subject | Aglomerado aberto FSR 1415 | pt_BR |
dc.subject | Instrumentacao astronomica | pt_BR |
dc.subject | Open clusters and associations: individual: FSR 1415 | en |
dc.subject | Fotometria astronômica | pt_BR |
dc.subject | Infrared: stars | en |
dc.subject | Estrelas | pt_BR |
dc.title | Multi-conjugate adaptive optics VLT imaging of the distant old open cluster FSR 1415 | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000673993 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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