Navegação Ciências Exatas e da Terra por Assunto "Pequena Nuvem de Magalhães"

Resultados 1-13 de 13

    • Ages and metallicities of five intermediate-age star clusters projected towards the Small Magellanic Cloud 

      Piatti, Andres E.; Santos Junior, Joao Francisco Coelho dos; Claria Olmedo, Juan Jose; Bica, Eduardo Luiz Damiani; Sarajedini, Ata; Geisler, Doug (2001) [Artigo de periódico]
      Colour–magnitude diagrams are presented for the first time for L32, L38, K28 (L43), K44 (L68) and L116, which are clusters projected on to the outer parts of the Small Magellanic Cloud (SMC). The photometry was carried out ...

    • BS 196 : an old star cluster far from the Small Magellanic Cloud main body 

      Bica, Eduardo Luiz Damiani; Santos Junior, Joao Francisco Coelho dos; Schmidt, Alex Andre (2008) [Artigo de periódico]
      We present B and V photometry of the outlying Small Magellanic Cloud (SMC) star cluster BS 196 with the 4.1-m SOAR telescope. The photometry is deep (to V≈25), showing ≈ 3 mag below the cluster turnoff point at MV = 2.5 ...

    • Dating star clusters in the Small Magellanic Cloud by means of integrated spectra 

      Ahumada, Andrea Veronica; Claria Olmedo, Juan Jose; Bica, Eduardo Luiz Damiani; Dutra, Carlos Maximiliano (2002) [Artigo de periódico]
      In this study flux-calibrated integrated spectra in the range (3600–6800) Å are presented for 16 concentrated star clusters in the Small Magellanic Cloud (SMC), approximately half of which constitute unstudied objects. We ...

    • Hierarchical structures in the Large and Small Magellanic Clouds 

      Bonatto, Charles Jose; Bica, Eduardo Luiz Damiani (2010) [Artigo de periódico]
      We investigate the degree of spatial correlation among extended structures in the Large Magellanic Cloud (LMC) and Small Magellanic Cloud (SMC). To this purpose, we work with subsamples characterized by different properties ...

    • Measurements of the equivalent width of the h/sub beta/ emission line and age determination of hii regions of the lmc and smc 

      Dottori, Horacio Alberto; Bica, Eduardo Luiz Damiani (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 ...

    • A new giant branch clump structure in the Large Magellanic Cloud 

      Piatti, Andres E.; Geisler, Doug; Bica, Eduardo Luiz Damiani; Claria Olmedo, Juan Jose; Santos Junior, Joao Francisco Coelho dos; Sarajedini, Ata; Dottori, Horacio Alberto (1999) [Artigo de periódico]
      We present Washington C and T1 CCD photometry of 21 Ðelds located in the northern part of the Large Magellanic Cloud (LMC), and spread over a region of more than 2.5 deg² approximately 6° from the bar. The surveyed areas ...

    • Self-consistent physical parameters for five intermediate-age SMC stellar clusters from CMD modelling 

      Dias, Bruno Moreira de Souza; Kerber, Leandro de Oliveira; Barbuy, Beatriz; Santiago, Basilio Xavier; Ortolani, Sergio; Balbinot, Eduardo (2014) [Artigo de periódico]
      Context. Stellar clusters in the Small Magellanic Cloud (SMC) are useful probes for studying the chemical and dynamical evolution of this neighbouring dwarf galaxy, enabling inspection of a large period covering over 10 ...

    • Stellar kinematics and metallicities in the ultra-faint dwarf galaxy Reticulum II 

      Simon, Josh D.; Drlica-Wagner, Alex; Li, T. S.; Nord, Brian Dennis; Geha, Marla; Bechtol, Keith; Balbinot, Eduardo; Buckley-Geer, Elizabeth; Lin, H.; Marshall, Jennifer L.; Santiago, Basilio Xavier; Strigari, Louis E.; Wang, M.; Wechsler, Risa H.; Yanny, Brian; Abbott, Timothy M. C.; Bauer, Anne Hollister; Bernstein, Gary M.; Bertin, Emmanuel; Brooks, D.; Burke, David Lyle; Capozzi, Diego; Carnero Rosell, Aurelio; Carrasco Kind, Matías; D'Andrea, Christopher B.; Costa, Luiz N. da; DePoy, Darren L.; Desai, S.; Diehl, H. Thomas; Dodelson, Scott; Cunha, Carlos Eduardo; Estrada, Juan; Evrard, August E.; Fausti Neto, Angelo; Fernandez, Enrique; Finley, David A.; Flaugher, Brenna; Frieman, Joshua A.; Gaztañaga, Enrique; Gerdes, David W.; Gruen, Daniel; Gruendl, Robert A.; Honscheid, K.; James, David J.; Kent, Stephen M.; Kuehn, Kyler; Kuropatkin, Nikolay P.; Lahav, Ofer; Maia, Marcio Antonio Geimba; March, Marisa Cristina; Martini, Paul; Miller, Christopher J.; Miquel, Ramon; Ogando, Ricardo L.C.; Romer, Anita K.; Roodman, Aaron; Romer, Anita K.; Sako, Masao; Sanchez-Alvaro, Eusebio; Schubnell, Michael; Sevilla Noarbe, Ignacio; Smith, Robert Christopher; Soares-Santos, Marcelle; Sobreira, Flávia; Suchyta, Eric; Swanson, Molly E. C.; Tarle, Gregory; Thaler, Jon J.; Tucker, Douglas L.; Vikram, Vinu; Walker, Alistair; Wester, William Carl; DES Collaboration (2015) [Artigo de periódico]
      We present Magellan/M2FS, Very Large Telescope/GIRAFFE, and Gemini South/GMOS spectroscopy of the newly discovered Milky Way satellite Reticulum II. Based on the spectra of 25 Ret II member stars selected from Dark Energy ...

    • A stellar overdensity associated with the Small Magellanic Cloud 

      Pieres, Adriano; Santiago, Basilio Xavier; Drlica-Wagner, Alex; Bechtol, Keith; Marel, Roeland Paul van der; Besla, Gurtina; Martin, Nicolas F.; Belokurov, Vasily; Gallart, Carme; Martínez-Delgado, David; Marshall, Jennifer L.; Nöel, N. E. D.; Majewski, Steven Raymond; Cioni, Maria-Rosa L.; Li, T. S.; Hartley, William; Luque Canaza, Elmer Fidel; Conn, Blair Campbell; Walker, Alistair; Balbinot, Eduardo; Stringfellow, Guy S.; Olsen, Knut A. G.; Nidever, D.L.; Costa, Luiz N. da; Ogando, Ricardo L.C.; Maia, Marcio Antonio Geimba; Fausti Neto, Angelo; Abbott, Timothy M. C.; Abdalla, Filipe B.; Allam, Sahar S.; Annis, James T.; Benoit-Lévy, Aurélien; Carnero Rosell, Aurelio; Carrasco Kind, Matías; Carretero Palacios, Jorge; Cunha, Carlos Eduardo; D'Andrea, Christopher B.; Desai, S.; Diehl, H. Thomas; Doel, Peter; Flaugher, Brenna; Fosalba Vela, Pablo; García-Bellido, Juan; Gruen, Daniel; Gruendl, Robert A.; Gschwend, Julia de Figueiredo; Gutierrez, Gaston R.; Honscheid, K.; James, David J.; Kuehn, Kyler; Kuropatkin, Nikolay P.; Menanteau, Felipe; Miquel, Ramon; Plazas Malagón, Andrés Alejandro; Romer, Anita K.; Sako, Mari; Sanchez-Alvaro, Eusebio; Scarpine, Victor Emanuel; Schubnell, Michael; Sevilla Noarbe, Ignacio; Smith, Robert Christopher; Soares-Santos, Marcelle; Sobreira, Flávia; Suchyta, Eric; Swanson, Molly E. C.; Tarle, Gregory; Tucker, Douglas L.; Wester, William Carl (2017) [Artigo de periódico]
      We report the discovery of a stellar overdensity 8◦ north of the centre of the Small Magellanic Cloud (SMC; Small Magellanic Cloud Northern Over-Density; SMCNOD), using data from the first 2 yr of the Dark Energy Survey ...

    • The line-of-sight depth of populous clusters in the Small Magellanic Cloud 

      Crowl, Hugh H.; Sarajedini, Ata; Piatti, Andres E.; Geisler, Doug; Bica, Eduardo Luiz Damiani; Claria Olmedo, Juan Jose; Santos Junior, Joao Francisco Coelho dos (2001) [Artigo de periódico]
      We present an analysis of age, metal abundance, and positional data on populous clusters in the Small Magellanic Cloud (SMC) with the ultimate aim of determining the line-of-sight (LOS) depth of the SMC by using these ...

    • Updating the census of star clusters in the Small Magellanic Cloud 

      Bica, Eduardo Luiz Damiani; Dutra, Carlos Maximiliano (2000) [Artigo de periódico]
      Surveys using CCD detectors are retrieving bright and faint cataloged clusters and revealing new ones in the Magellanic Clouds. This paper discusses the contribution of the OGLE Survey to the overall census of star clusters ...

    • Washington photometry of 14 intermediate-age to old star clusters in the Small Magellanic Cloud 

      Piatti, Andres E.; Claria Olmedo, Juan Jose; Bica, Eduardo Luiz Damiani; Geisler, Doug; Ahumada, Andrea Veronica; Girardi, Leo Alberto (2011) [Artigo de periódico]
      We present CCD photometry in the Washington system C, T1 and T2 passbands down to T1 ~ 23 in the fields of L3, L28,HW66, L100,HW79, IC 1708, L106, L108, L109, NGC643, L112, HW84, HW85 and HW86, 14 Small Magellanic Cloud ...

    • Washington photometry of candidate star clusters in the Small Magellanic Cloud 

      Piatti, Andres E.; Bica, Eduardo Luiz Damiani (2012) [Artigo de periódico]
      We present for the first time Washington CT1 photometry for 11 unstudied or poorly studied candidate star clusters. The selected objects are of small angular size, contain a handful of stars, and are projected towards the ...