Mostrando ítems 1-20 de 20

    • Bridge over troubled gas : clusters and associations under the SMC and LMC tidal stresses 

      Bica, Eduardo Luiz Damiani; Santiago, Basilio Xavier; Bonatto, Charles Jose; Dias, Rafael Augusto Garcia; Kerber, Leandro de Oliveira; Dias, Bruno Moreira de Souza; Barbuy, Beatriz; Balbinot, Eduardo (2015) [Artículo 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 ...
    • Chemical analysis of eight giant stars of the globular cluster NGC 6366 

      Puls, Arthur Alencastro; Alves-Brito, Alan; Campos, Fabíola; Dias, Bruno Moreira de Souza; Barbuy, Beatriz (2018) [Artículo de periódico]
      The metal-rich Galactic globular cluster NGC6366 is the fifth closest to the Sun. Despite its interest, it has received scarce attention, and little is known about its internal structure. Its kinematics suggests a link to ...
    • 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]
    • FSR 1716 : a new Milky Way globular cluster confirmed using VVV RR Lyrae stars 

      Minniti, Dante; Palma, Tali; Dékány, István; Hempel, Maren; Rejkuba, Marina; Pullen, Joyce; Alonso Garcia, Javier; Barbá, Rodolfo H.; Barbuy, Beatriz; Bica, Eduardo Luiz Damiani; Bonatto, Charles Jose; Borissova, Jura; Catelan, Márcio; Carballo-Bello, Julio A.; Chené, André-Nicolas; Claria Olmedo, Juan Jose; Cohen, Roger; Contreras Ramos, Rodrigo; Dias, Bruno Moreira de Souza; Emerson, Jim P.; Froebrich, Dirk; Buckner, Anne S. M.; Geisler, Doug; Gonzalez, Oscar A.; Gran, Felipe; Hajdu, Gergely; Irwin, Michael John; Ivanov, Valentin D.; Kurtev, Radostin Georgiev; Lucas, Philip W.; Majaess, Daniel J.; Mauro, Francesco; Moni Bidin, Christian; Navarrete, Camila; Ramírez Alegría, Sebastián; Saito, Roberto K.; Valenti, Elena; Zoccali, Manuela (2017) [Artículo de periódico]
      We use deep multi-epoch near-IR images of the VISTA Variables in the Vía Láctea (VVV) Survey to search for RR Lyrae stars toward the Southern Galactic plane. Here, we report the discovery of a group of RR Lyrae stars close ...
    • Gaia-IGRINS synergy : orbits of newly identified Milky Way star clusters 

      Garro, Elisa Rita; Fernández-Trincado, José Gregorio; Minniti, Dante; Moya, Wisthon Aby Haro; Palma, Tali; Beers, Timothy C.; Placco, Vinicius M.; Barbuy, Beatriz; Sneden, Chris; Alves-Brito, Alan; Dias, Bruno Moreira de Souza; Afsar, Melike; Frelijj, Heinz; Lane, Richard R. (2023) [Artículo de periódico]
      Context. The recent and exquisite astrometric, photometric, and radial velocity measurements of the Gaia mission resulted in a substantial advancement of the determination of the orbits for old star clusters, including the ...
    • Gemini/Phoenix H-band analysis of the globular cluster AL 3 

      Barbuy, Beatriz; Ernandes, Heitor; Souza, Stefano O.; Razera, Roberta Ferreira; Moura, Tatiana; Meléndez, Jorge; Pérez Villegas, Maria de Los Angeles; Zoccali, Manuela; Minniti, Dante; Dias, Bruno Moreira de Souza; Ortolani, Sergio; Bica, Eduardo Luiz Damiani (2021) [Artículo de periódico]
      The globular cluster AL 3 is old and located in the inner bulge. Three individual stars were observed with the Phoenix spectrograph at the Gemini South telescope. The wavelength region contains prominent lines of CN, OH, ...
    • High-resolution abundance analysis of four red giants in the globular cluster NGC 6558 

      Barbuy, Beatriz; Muniz, Leone V.; Ortolani, Sergio; Ernandes, Heitor; Dias, Bruno Moreira de Souza; Saviane, Ivo; Kerber, Leandro de Oliveira; Bica, Eduardo Luiz Damiani; Pérez Villegas, Maria de Los Angeles; Rossi, Luca James; Held, Enrico V. (2018) [Artículo de periódico]
      Context. NGC 6558 is a bulge globular cluster with a blue horizontal branch (BHB), combined with a metallicity of [Fe/H] ≈ −1.0. It is similar to HP 1 and NGC 6522, which could be among the oldest objects in the Galaxy. ...
    • High-resolution abundance analysis of red giants in the metal-poor bulge globular cluster HP 1 

      Barbuy, Beatriz; Cantelli, Elvis William Carvalho; Vemado, Artur; Ernandes, Heitor; Ortolani, Sergio; Saviane, Ivo; Bica, Eduardo Luiz Damiani; Minniti, Dante; Dias, Bruno Moreira de Souza; Momany, Yazan; Hill, Vanessa; Zoccali, Manuela; Mello Junior, Cesar Henrique Siqueira (2016) [Artículo de periódico]
      Context. The globular cluster HP 1 is projected at only 3 :33 from the Galactic center. Together with its distance, this makes it one of the most central globular clusters in the Milky Way. It has a blue horizontal branch ...
    • A MUSE study of the inner bulge globular cluster Terzan 9 : a fossil record in the Galaxy 

      Ernandes, Heitor; Dias, Bruno Moreira de Souza; Barbuy, Beatriz; Kamann, Sebastian; Ortolani, Sergio; Cantelli, Elvis William Carvalho; Bica, Eduardo Luiz Damiani; Rossi, Luca James (2019) [Artículo de periódico]
      Context. Moderately metal-poor inner bulge globular clusters are relics of a generation of long-lived stars that formed in the early Galaxy. Terzan 9, projected at 4°.12 from the Galactic center, is among the most central ...
    • New Galactic star clusters discovered in the VVV survey 

      Borissova, Jura; Bonatto, Charles Jose; Kurtev, Radostin Georgiev; Clarke, J. R. A.; Peñaloza, Francisco; Sale, Stuart E.; Minniti, Dante; Alonso Garcia, Javier; Artigau, Étienne; Barbá, Rodolfo H.; Bica, Eduardo Luiz Damiani; Baume, Gustavo Luis; Catelan, Márcio; Chené, André-Nicolas; Dias, Bruno Moreira de Souza; Folkes, S. L.; Froebrich, Dirk; Geisler, Doug; Grijs, Richard de; Hanson, M. M.; Hempel, Maren; Ivanov, Valentin D.; Kumar, M. S. N.; Lucas, Philip W.; Mauro, Francesco; Moni Bidin, Christian; Rejkuba, Marina; Saito, Roberto K.; Tamura, Motohide; Toledo, Ignacio (2011) [Artículo de periódico]
      Context. VISTA Variables in the Vía Láctea (VVV) is one of the six ESO Public Surveys operating on the new 4-m Visible and Infrared Survey Telescope for Astronomy (VISTA). VVV is scanning the Milky Way bulge and an adjacent ...
    • Photo-chemo-dynamical analysis and the origin of the bulge globular cluster Palomar 6 

      Souza, Stefano O.; Valentini, Marica; Barbuy, Beatriz; Pérez Villegas, Maria de Los Angeles; Chiappini, C.C.M.; Ortolani, Sergio; Nardiello, Domenico; Dias, Bruno Moreira de Souza; Anders, Friedrich; Bica, Eduardo Luiz Damiani (2021) [Artículo de periódico]
      Context. Palomar 6 (Pal6) is a moderately metal-poor globular cluster projected towards the Galactic bulge. A full analysis of the cluster can give hints on the early chemical enrichment of the Galaxy and a plausible origin ...
    • Probing the Large Magellanic Cloud age gap at intermediate cluster masses 

      Balbinot, Eduardo; Santiago, Basilio Xavier; Kerber, Leandro de Oliveira; Barbuy, Beatriz; Dias, Bruno Moreira de Souza (2010) [Artículo 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 ...
    • 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) [Artículo 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 ...
    • SMC west halo : a slice of the galaxy that is being tidally stripped? Star clusters trace age and metallicity gradients 

      Dias, Bruno Moreira de Souza; Kerber, Leandro de Oliveira; Barbuy, Beatriz; Bica, Eduardo Luiz Damiani; Ortolani, Sergio (2016) [Artículo de periódico]
      Context. The evolution and structure of the Magellanic Clouds is currently under debate. The classical scenario in which both the Large and Small Magellanic Clouds (LMC, SMC) are orbiting the Milky Way has been challenged ...
    • 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 : II. Structure of star clusters in the Magellanic clouds periphery 

      Santos Junior, Joao Francisco Coelho dos; Maia, Francisco F. S.; Dias, Bruno Moreira de Souza; Kerber, Leandro de Oliveira; Piatti, Andres E.; Bica, Eduardo Luiz Damiani; Angelo, Mateus S.; Minniti, Dante; Pérez Villegas, Maria de Los Angeles; Roman-Lopes, Alexandre; Westera, Pieter; Fraga, Luciano; Quint, Bruno C.; Sanmartim, David (2020) [Artículo de periódico]
      We provide a homogeneous set of structural parameters of 83 star clusters located at the periphery of the Small Magellanic Cloud (SMC) and the Large Magellanic Cloud (LMC). The clusters’ stellar density and surface brightness ...
    • 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 : IV. The SMC West Halo in 8D 

      Dias, Bruno Moreira de Souza; Bica, Eduardo Luiz Damiani; Rocha, João Pedro dos Santos (2022) [Artículo de periódico]
      The structure of the Small Magellanic Cloud (SMC) is very complex, in particular in the periphery that suffers more from the interactions with the Large Magellanic Cloud (LMC). A wealth of observational evidence has been ...
    • 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, ...
    • VVV DR1 : the first data release of the Milky Way bulge and southern plane from the near-infrared ESO public survey VISTA variables in the Vía Láctea 

      Saito, Roberto K.; Hempel, Maren; Minniti, Dante; Lucas, Philip W.; Rejkuba, Marina; Toledo, Ignacio; Gonzalez, O. A.; Alonso Garcia, Javier; Irwin, Michael John; Gonzalez-Solares, Eduardo; Hodgkin, Simon; Lewis, James R.; Cross, Nick; Ivanov, Valentin D.; Kerins, Eamonn; Emerson, Jim P.; Soto, M.; Amôres, Eduardo Brescansin de; Gurovich, Sebástian; Dékány, István; Angeloni, Rodolfo; Beamin, Juan Carlos; Catelan, Márcio; Padilla, Nelson; Zoccali, Manuela; Pietrukowicz, Pawel; Moni Bidin, Christian; Mauro, Francesco; Geisler, Doug; Folkes, S. L.; Sale, Stuart E.; Borissova, Jura; Kurtev, Radostin Georgiev; Ahumada, Andrea Veronica; Alonso, Maria Victoria; Adamson, Andy; Arias, Julia Inés; Bandyopadhyay, Reba M.; Barbá, Rodolfo H.; Barbuy, Beatriz; Baume, Gustavo Luis; Bedin, Luigi R.; Bellini, Andrea; Bica, Eduardo Luiz Damiani; Bonatto, Charles Jose; Bronfman, Leonardo; Carraro, Giovanni; Chené, André-Nicolas; Claria Olmedo, Juan Jose; Clarke, J. R. A.; Contreras, C.; Corvillon, Andrea; Grijs, Richard de; Dias, Bruno Moreira de Souza; Drew, Janet E.; Fariña, Cecilia; Feinstein Baigorri, Carlos; Fernández Lajús, Eduardo Eusebio; Gamen, Roberto C.; Gieren, Wolfgang P.; Goldman, Bertrand; González-Fernández, Carlos; Grand, R. J. J.; Gunthardt, Guillermo; Hambly, Nigel C.; Hanson, M. M.; Helminiak, Krzysztof Grzegorz; Hoare, Melvin G.; Huckvale, L.; Jordán, Andrés; Kinemuchi, Karen; Longmore, Andy; López Corredoira, Martín; Maccarone, Thomas J.; Majaess, Daniel J.; Martín Guerrero de Escalante, Eduardo L.; Masetti, Nicola; Mennickent, Ronnald Enrique; Mirabel, I. Felix; Monaco, Lorenzo; Morelli, Lorenzo; Motta, Verónica; Palma, Tali; Parisi, M. C.; Parker, Quentin; Peñaloza, Francisco; Pietrzynski, Grzegorz; Pignata, Giuliano; Popescu, Bogdan; Read, Michael A.; Rojas, Alejandra; Roman-Lopes, Alexandre; Ruiz, Maria Teresa; Saviane, Ivo; Schreiber, Matthias R.; Schröder, A. C.; Sharma, S.; Smith, Michael D.; Sodre Junior, Laerte; Stead, Joe; Stephens, Andrew; Tamura, Motohide; Tappert, Claus; Thompson, Mark A.; Valenti, Elena; Vanzi, Leonardo; Walton, Nicholas A.; Weidmann, Walter; Zijlstra, Albert (2012) [Artículo de periódico]
      Context. The ESO public survey VISTA variables in the Vía Láctea (VVV) started in 2010. VVV targets 562 sq. deg in the Galactic bulge and an adjacent plane region and is expected to run for about five years. Aims. We ...