Navegação Ciências Exatas e da Terra por Autor "Majaess, Daniel J."

Resultados 1-10 de 10

    • Anchoring the distence scale via x-ray/infrared data for Cepheid clusters : SU Cas 

      Majaess, Daniel J.; Turner, D. G.; Gallo, Luigi; Gieren, Wolfgang P.; Bonatto, Charles Jose; Lane, Dave; Balam, D.; Berdnikov, L. (2012) [Artigo de periódico]
      New X-ray (XMM-Newton) and JHKs (Observatoire du Mont-Mégantic) observations for members of the star cluster Alessi 95, which Turner et al. discovered hosts the classical Cepheid SU Cas, were used in tandem with UCAC3 ...

    • Anchors for the cosmic distance scale : the Cepheids U Sagittarii, CF Cassiopeiae, and CEab Cassiopeiae 

      Majaess, Daniel J.; Carraro, Giovanni; Moni Bidin, Christian; Bonatto, Charles Jose; Berdnikov, L.; Balam, D.; Moyano, Maximiliano; Gallo, Luigi; Turner, D. G.; Lane, Dave; Gieren, Wolfgang P.; Borissova, Jura; Kovtyukh, Valery V.; Beletsky, Yuri (2013) [Artigo de periódico]
      New and existing X-ray, UBVJHKsW(1−4), and spectroscopic observations were analyzed to constrain fundamental parameters for M25, NGC 7790, and dust along their sight-lines. The star clusters are of particular importance ...

    • 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) [Artigo 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 ...

    • Investigating potential planetary nebula/cluster pairs 

      Moni Bidin, Christian; Majaess, Daniel J.; Bonatto, Charles Jose; Mauro, Francesco; Turner, D. G.; Geisler, Doug; Chené, André-Nicolas; Gormaz-Matamala, Alex C.; Borissova, Jura; Kurtev, Radostin Georgiev; Minniti, Dante; Carraro, Giovanni; Gieren, Wolfgang P. (2014) [Artigo de periódico]
      Context. Fundamental parameters characterizing the end-state of intermediate-mass stars may be constrained by discovering planetary nebulae (PNe) in open clusters (OCs). Cluster membership may be exploited to establish the ...

    • Massive open star clusters using the VVV survey : II. Discovery of six clusters with Wolf-Rayet stars 

      Chené, André-Nicolas; Bonatto, Charles Jose; Majaess, Daniel J.; Baume, Gustavo Luis; Clarke, J. R. A.; Kurtev, Radostin Georgiev; Schnurr, Olivier; Bouret, Jean-Claude; Catelan, Márcio; Emerson, Jim P.; Feinstein Baigorri, Carlos; Geisler, Doug; Grijs, Richard de; Hervé, Anthony; Ivanov, Valentin D.; Kumar, M. S. N.; Lucas, Philip W.; Mahy, Laurent; Martins, Fabrice; Mauro, Francesco; Minniti, Dante; Moni Bidin, Christian (2013) [Artigo de periódico]
      Context. The ESO Public Survey “VISTA Variables in the Vía Láctea” (VVV) provides deep multi-epoch infrared observations for an unprecedented 562 sq. degrees of the Galactic bulge, and adjacent regions of the disk. Nearly ...

    • Massive open star clusters using the VVV survey : I. Presentation of the data and description of the approach 

      Chené, André-Nicolas; Borissova, Jura; Clarke, J. R. A.; Bonatto, Charles Jose; Majaess, Daniel J.; Moni Bidin, Christian; Sale, Stuart E.; Mauro, Francesco; Kurtev, Radostin Georgiev; Baume, Gustavo Luis; Feinstein Baigorri, Carlos; Ivanov, Valentin D.; Geisler, Doug; Catelan, Márcio; Minniti, Dante; Lucas, Philip W.; Grijs, Richard de; Kumar, M. S. N. (2012) [Artigo de periódico]
      Context. The ESO Public Survey “VISTA Variables in the Vía Láctea” (VVV) provides deep multi-epoch infrared observations for unprecedented 562 sq. degrees of the Galactic bulge, and adjacent regions of the disk. Aims. The ...

    • New galactic star clusters discovered in the VVV survey. Candidates projected on the inner disk and bulge 

      Borissova, Jura; Chené, André-Nicolas; Ramírez Alegría, Sebastián; Sharma, S.; Clarke, J. R. A.; Kurtev, Radostin Georgiev; Negueruela, Ignacio; Marco Tobarra, Amparo; Amigo, Pia; Minniti, Dante; Bica, Eduardo Luiz Damiani; Bonatto, Charles Jose; Catelan, Márcio; Fierro, C.; Geisler, Doug; Gromadzki, Mariusz; Hempel, Maren; Hanson, M. M.; Ivanov, Valentin D.; Lucas, Philip W.; Majaess, Daniel J.; Moni Bidin, Christian; Popescu, Bogdan; Saito, Roberto K. (2014) [Artigo de periódico]
      Context. VISTA Variables in the Vía Láctea (VVV) is one of six ESO Public Surveys using the 4 meter Visible and Infrared Survey Telescope for Astronomy (VISTA). The VVV survey covers the Milky Way bulge and an adjacent ...

    • On the crucial cluster Andrews-Lindsay 1 and a 4% distance solution for its planetary nebula 

      Majaess, Daniel J.; Carraro, Giovanni; Moni Bidin, Christian; Bonatto, Charles Jose; Turner, D. G.; Moyano, Maximiliano; Berdnikov, L.; Giorgi, Edgard Ervar (2014) [Artigo de periódico]
      Andrews-Lindsay 1 is a pertinent open cluster because it may host the planetary nebula (PN) PHR 1315-6555, yet ambiguities linger concerning its fundamental parameters (>50% scatter). New multiband BVJHW1−4 photometry for ...

    • Strengthening the open cluster distance scale via VVV photometry 

      Majaess, Daniel J.; Turner, D. G.; Moni Bidin, Christian; Geisler, Doug; Borissova, Jura; Minniti, Dante; Bonatto, Charles Jose; Gieren, Wolfgang P.; Carraro, Giovanni; Kurtev, Radostin Georgiev; Mauro, Francesco; Chené, André-Nicolas; Forbes, Douglas; Lucas, Philip W.; Dékány, István; Saito, Roberto K.; Soto, M. (2012) [Artigo de periódico]
      Approximately 14% of known Galactic open clusters possess absolute errors ≤20% as evaluated from n ≥ 3 independent distance estimates, and the statistics for age estimates are markedly worse. That impedes such diverse ...

    • 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) [Artigo 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 ...