Listar Ciencias Exactas y Naturales por autor "Oliveira, Raphael Augusto Pereira de"

Mostrando ítems 1-7 de 7

    • A deep view of a fossil relic in the Galactic bulge : the Globular Cluster HP1 

      Kerber, Leandro de Oliveira; Libralato, Mattia; Souza, Stefano O.; Oliveira, Raphael Augusto Pereira de; Ortolani, Sergio; Pérez Villegas, Maria de Los Angeles; Barbuy, Beatriz; Dias, Bruno Moreira de Souza; Bica, Eduardo Luiz Damiani; Nardiello, Domenico (2019) [Artículo de periódico]

    • Near-infrared study of new embedded clusters in the Carina complex 

      Oliveira, Raphael Augusto Pereira de; Bica, Eduardo Luiz Damiani; Bonatto, Charles Jose (2018) [Artículo de periódico]
      We analyse the nature of a sample of stellar overdensities that we found projected on the Carina complex. This study is based on the Two Micron All Sky Survey photometry and involves the photometry decontamination of field ...

    • The Hubble space telescope UV legacy survey of galactic globular clusters : XX. Ages of single and multiple stellar populations in seven bulge globular clusters 

      Oliveira, Raphael Augusto Pereira de; Bica, Eduardo Luiz Damiani; Vesperini, Enrico (2020) [Artículo de periódico]
      In the present work we analyzed seven globular clusters (GCs) selected from their location in the Galactic bulge and with metallicity values in the range −1.30 lesssim [Fe/H] lesssim −0.50. The aim of this work is first ...

    • The VISCACHA survey : III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8D 

      Dias, Bruno Moreira de Souza; Angelo, Mateus S.; Oliveira, Raphael Augusto Pereira de; Maia, Francisco F. S.; Parisi, M. C.; De Bórtoli, Bruno Javier; Souza, Stefano O.; Santrich, Orlando J. Katime; Bassino, Lilia Patricia; Barbuy, Beatriz; Bica, Eduardo Luiz Damiani; Geisler, Doug; Kerber, Leandro de Oliveira; Pérez Villegas, Maria de Los Angeles; Quint, Bruno C.; Sanmartim, David; Santos Junior, Joao Francisco Coelho dos; Westera, Pieter (2021) [Artículo de periódico]
      Context. The interactions between the Small and Large Magellanic Clouds (SMC and LMC) created the Magellanic Bridge; a stream of gas and stars pulled out of the SMC towards the LMC about 150 Myr ago. The tidal counterpart ...

    • The VISCACHA survey : I. Overview and first results 

      Maia, Francisco F. S.; Dias, Bruno Moreira de Souza; Santos Junior, Joao Francisco Coelho dos; Kerber, Leandro de Oliveira; Bica, Eduardo Luiz Damiani; Piatti, Andres E.; Barbuy, Beatriz; Quint, Bruno C.; Fraga, Luciano; Sanmartim, David; Angelo, Mateus S.; Hernández Jiménez, José Andrés; Santrich, Orlando J. Katime; Oliveira, Raphael Augusto Pereira de; Pérez Villegas, Maria de Los Angeles; Souza, Stefano O.; Vieira, Rodrigo G.; Westera, Pieter (2019) [Artículo de periódico]
      The VISCACHA(VIsible Soar photometry of star Clusters in tApii and Coxi HuguA) Survey is an ongoing project based on deep photometric observations of Magellanic Cloud star clusters, collected using the SOuthern Astrophysical ...

    • The VISCACHA survey : VIII. Chemical evolution history of the small Magellanic cloud west halo clusters 

      Saroon, Sasi; Dias, Bruno; Tsujimoto, Takuji; Parisi, M. C.; Maia, Francisco F. S.; Kerber, Leandro de Oliveira; Bekki, Kenji; Minniti, Dante; Oliveira, Raphael Augusto Pereira de; Westera, Pieter; Santrich, Orlando J. Katime; Bica, Eduardo Luiz Damiani; Sanmartim, David; Quint, Bruno C.; Fraga, Luciano (2023) [Artículo de periódico]
      The chemical evolution history of the Small Magellanic Cloud (SMC) has been a matter of debate for decades. The challenges in understanding the SMC chemical evolution are related to a very slow star formation rate (SFR) ...

    • The VISCACHA survey : V. Rejuvenating three faint SMC clusters 

      Bica, Eduardo Luiz Damiani; Maia, Francisco F. S.; Oliveira, Raphael Augusto Pereira de; Dias, Bruno Moreira de Souza; Santos Junior, Joao Francisco Coelho dos; Rocha, João Pedro dos Santos; Kerber, Leandro de Oliveira; Carvalho, João Francisco Gardin de; Armond, Ana Cristina Moreira Machado Zadra; Parisi, M. C.; Souza, Stefano O.; Barbuy, Beatriz (2022) [Artículo de periódico]
      We present the analysis of three faint clusters of the Small Magellanic Cloud RZ 82, HW 42, and RZ 158. We employed the SOAR telescope instrument SAM with adaptive optics, allowing us to reach to V ∼ 23–24 mag, unprecedentedly, ...