Navegação Ciências Exatas e da Terra por Assunto "Galaxy: center"
Resultados 1-7 de 7
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Discovery of an obscured globular cluster candidate in the bulge
(1994) [Artigo de periódico]The discovery of a previously uncatalogued extended object at a19so = 17h 21m 508 and 81950 = -24° 15' 44" is reported. The size (d 60") and appearance on the ESO R Atlas field 519 are similar to those of several reddened ... -
Globular clusters within five grade of the galactic center
(1998) [Artigo de periódico]In the recent years we have concentrated efforts to collect Colour-Magnitude Diagrams of the globular clusters projected in the central parts of the Galaxy. So far we were able to gather photometric data in the V, I and ... -
High quality seeing V, I and Gunn z imaging of Terzan 4 : a blue horizontal branch bulge globular cluster
(1997) [Artigo de periódico]We study the globular cluster Terzan 4 projected close to the Galactic center, by means of V, I and Gunn z Colour-Magnitude Diagrams. The images were obtained under exceptional seeing conditions (0.35" - 0.55") at the ESO ... -
Infrared array photometry of bulge globular clusters I. Combined ground based JK and HST VI photometry of NGC 6553
(1998) [Artigo de periódico]JK infrared photometry for the bulge globular cluster NGC 6553, combined with high resolution visual VI observations are presented and discussed in connection with the bulge metal rich population. The infrared data were ... -
Multiband photometry towards the inner galactic bulge : extinction, atmospheric parameters, and metallicities
(2006) [Artigo de periódico]Context. We have obtained BVRI photometry for 21 stellar fields located in directions towards the central 3.5° of the Galaxy. Each field is 10 × 10 arcmin in size, and a total of ∼2 × 105 stars were measured. Aims. Previous ... -
NGC 6522 : an intermediate metallicity globular cluster projected on the baade window
(1994) [Artigo de periódico]We studied NGC 6522 colour magnitude diagrams using CCD photometry with BV filters. We have carefully estimated the reddening, which is criticai for Baade Window studies, obtaining E(B-V) = 0.55. We derive for this ... -
V, i photometry of the metal-rich bulge globular cluster terzan 2
(1997) [Artigo de periódico]We present for the rst time optical colour magnitude diagrams of the globular cluster Terzan 2, in the V, I colours. The horizontal branch is red. The red giant branch morphology can be fitted with that of 47 Tuc, but ...