Navegação por Assunto "Nuvens de magalhaes"
Resultados 1-20 de 31
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Ages and metallicities of lmc and smc red clusters through hb and g band photometry
(1986) [Artigo de periódico]We present narrow band integrated photometry of the Hβ and G band absorption features for 41 LMC and 10 SMC red star clusters. An age-metallicity calibration is provided for the color-color diagram. We derive SWB types ... -
Aglomerados de estrelas em estado avançado de dissolução : estudos de caso no Grupo Local
(2011) [Dissertação]Neste trabalho é apresentado o estudo de aglomerados de estrelas em três ambientes distintos. Os efeitos do ambiente são discutidos do ponto de vista observacional tendo como objetivo principal buscar fenômenos tipicamente ... -
Análise de campos profundos da LMC imageados com o HST
(2001) [Dissertação]Apresentamos fotometria profunda (V ~ 25,5) nas bandas V e I obtidas com a Wide Field and Planetary Camera 2 a bordo do telesc opio espacial Hubble para 7 campos distantes ~5º do centro da Grande Nuvem de Magalhães. Ajustamos ... -
Birds of a Feather? : Magellan/IMACS spectroscopy of the ultra-faint satellites Grus II, Tucana IV, and Tucana V
(2020) [Artigo de periódico]We present Magellan/IMACS spectroscopy of three recently discovered ultra-faint Milky Way satellites, Grus II, Tucana IV, and Tucana V. We measure systemic velocities of vhel =- 110.0 0.5 - km s 1 , = - + vhel 15.9 1.7 ... -
Blue magellanic clusters : near-infrared spectral evolution
(1990) [Artigo de periódico]We present new integrated spectra in the range 5600-10000 Å for 28 LMC and 3 SMC young star clusters. We measure the equivalent widths (W) of prominent features and the continuum distribution. The analysis, supplemented ... -
Blue-violet spectral evolution of young magellanic cloud clusters
(1995) [Artigo de periódico]We study the integrated spectral evolution in the blue-violet range of 97 blue star clusters in the Magellanic Clouds, from those associated with gas emission to those as old as a few hundred Myr. Some clusters are dominated ... -
Bridge over troubled gas : clusters and associations under the SMC and LMC tidal stresses
(2015) [Artigo de periódico]We obtained Southern Astrophysical Research telescope B and V photometry of 14 star clusters and two associations in the Bridge tidal structure connecting the Large and Small Magellanic Cloud (LMC and SMC). These objects ... -
Um catálogo e atlas de objetos extensos nas Nuvens de Magalhães
(1998) [Resumo publicado em evento] -
Distribuição de extinção na Galáxia e nas Nuvens de Magalhães
(2001) [Tese]o estudo da distribuição de extinção na Galáxia e nas Nuvens de Magalhães é feito através da análise dos mapas de avermelhamento derivados da emissão 100f-Lmda poeira E(B- V)FIR de Schlegel et ai. (1998). Comparamos valores ... -
Distribuição de galáxias através do HI das Nuvens de Magalhães
(1997) [Resumo publicado em evento] -
Dynamical studies of cluster pairs in the magellanic clouds
(1998) [Artigo de periódico]We performed N-body simulations of star cluster encounters with Hernquist’s TREECODE in a CRAY YMP-2E computer under different initial conditions (relative positions and velocities, cluster sizes, masses and concentration ... -
A general catalogue of extended objects in the Magellanic System
(2008) [Artigo de periódico]We update the Small Magellanic Cloud (SMC), Bridge and Large Magellanic Cloud (LMC) catalogues of extended objects that were constructed by members of our group from 1995 to 2000. In addition to the rich subsequent literature ... -
Measurements of the equivalent width of the h/sub beta/ emission line and age determination of hii regions of the lmc and smc
(1981) [Artigo de periódico]The equivalent width of the emission line Hβ was measured photoelectrically in 29 H II regions of the LMC and 2 of the SMC respectively. The age of these regions was obtained through a calibration of Wʜβ. A relation was ... -
Uma nova visão sobre a periferia das Nuvens de Magalhães
(2017) [Tese]Nossa amostra de trabalho consistiu das cercanias das Nuvens de Magalhães dentro da area amostrada pelo Dark Energy Survey. Nos concentramos na amostra de aglomerados da Grande Nuvem de Magalhães e na descoberta de uma ... -
On the calibration of the COBE/IRAS dust emission reddening maps
(2003) [Artigo de periódico]In this work we study the spectral properties (3600–6800 Å) of the nuclear region of early-type galaxies at low (|b| < 25◦), intermediate (including surroundings of the Magellanic Clouds) and high (South Polar Cap) Galactic ... -
Physical parameters of 15 intermediate-age LMC clusters from modelling of HST colour-magnitude diagrams
(2007) [Artigo de periódico]Aims. We analyzed HST/WFPC2 colour–magnitude diagrams (CMDs) of 15 populous Large Magellanic Cloud (LMC) stellar clusters with ages between ~0.3 Gyr and ~3 Gyr. These (V, B − V) CMDs are photometrically homogeneous and ... -
Physical parameters of rich LMC clusters from modeling of deep HST colour-magnitude diagrams
(2005) [Artigo de periódico]We present the analysis of deep colour–magnitude diagrams (CMDs) of five rich LMC clusters. The data were obtained with HST/WFPC2 in the F555W (~V) and F814W (~I) filters, reaching V₅₅₅ ~ 25. The sample of clusters is ... -
Probing the Large Magellanic Cloud age gap at intermediate cluster masses
(2010) [Artigo de periódico]The Large Magellanic Cloud (LMC) has a rich star cluster system spanning a wide range of ages and masses. One striking feature of the LMC cluster system is the existence of an age gap between 3 and 10 Gyr. But this feature ... -
Os satélites da Via Láctea no contexto cosmológico
(2014) [Tese]O objetivo desta tese é analisar aspectos do sistema de satélites da Via Láctea de relevância cosmológica. Dentre estes aspectos destacam-se dois: o censo de satélites da Galáxia – onde constata-se que a quantidade destes ... -
A search for old star clusters in the large magellanic cloud
(1997) [Artigo de periódico]There are only a handful of known star clusters in the LMC that are genuinely old, i.e., of similar age to the globular star clusters in the Milky Way. We report the first results of a color-magnitude diagram survey of 25 ...
