Browsing Exact and Earth Sciences by Subject "Luminosidade"

Now showing items 1-6 of 6

    • Asteroseismology of a star cooled by neutrino emission : the pulsating pre-white dwarf PG 0122+200 

      O'Brien, M. Sean; Vauclair, Gérard; Kawaler, Steven D.; Watson, Todd K.; Winget, Donald Earl; Nather, R. Edward; Montgomery, Michael Houston; Nitta, Atsuko; Kleinman, Scot James; Sullivan, Denis J.; Jiang, Xiaojun; Marar, T.M. Krishnan; Seetha, S.; Ashoka, B.N.; Bhattacharya, J.; Leibowitz, Elia M.; Hemar, Shirley; Ibbetson, Peter A.; Warner, B.; Van Zyl, L.; Moskalik, Pawel; Zola, Staszek; Pajdosz, Gabriel; Krzesinski, Jerzy; Dolez, Noël; Chevreton, Michel; Solheim, Jan-Eric; Thomassen, T.; Kepler, Souza Oliveira; Giovannini Junior, Odilon; Provencal, Judith L.; Wood, Matthew A.; Clemens, J. Christopher (1998) [Journal article]
      Observation of g-mode pulsations in the variable pre-white dwarf (GW Virginis) stars provides a unique means to probe their interiors and to study the late stages of stellar evolution. Multisite campaigns have in several ...

    • Multicolor photometric properties of six early-type galaxies 

      Saraiva, Maria de Fátima Oliveira; Ferrari, Fabricio; Pastoriza, Miriani Griselda (1999) [Journal article]
      We present BV RI CCD surface photometry for 4 elliptical and 2 S0 galaxies that show bright emission lines in their nuclear spectra. We obtained isophote maps, luminosity profiles, and basic photometric parameters. We also ...

    • Observation of B0 → ψ(2S)K0Sπ+π− and B0s → ψ(2S)K0S decays 

      Tumasyan, Armen; Silveira, Gustavo Gil da; Bernardes, César Augusto; CMS Collaboration (2022) [Journal article]
      Using a data sample of s√=13TeV proton-proton collisions collected by the CMS experiment at the LHC in 2017 and 2018 with an integrated luminosity of 103~fb−1, the B0s→ψ(2S)K0S and B0→ψ(2S)K0Sπ+π− decays are observed with ...

    • Star formation in AGNs at the hundred parsec scale using MIR high-resolution images 

      Dutra, Daniel Ruschel; Rodríguez Espinosa, Jose Miguel; Gonzalez Martin, Omaira; Pastoriza, Miriani Griselda; Riffel, Rogério (2017) [Journal article]
      It has been well established in the past decades that the central black hole masses of galaxies correlate with dynamical properties of their harbouring bulges. This notion begs the question of whether there are causal ...

    • The extended narrow-line region of the Seyfert 1 galaxy ESO 362-G18 versus that of the Seyfert 2 galaxy ESO 362-G8 

      Fraquelli, Henrique Aita; Storchi-Bergmann, Thaisa; Binette, Luc (2000) [Journal article]
      We use long-slit spectroscopic data to study in detail the extended narrow-line regions (ENLRs) of the Seyfert 1 galaxy ESO 362-G18 and Seyfert 2 galaxy ESO 362-G8. These two galaxies have similar emission-line luminosities ...

    • The tidal tails of NGC 2298 

      Balbinot, Eduardo; Santiago, Basilio Xavier; Costa, Luiz N. da; Makler, Martín; Maia, Marcio Antonio Geimba (2011) [Journal article]
      We present an implementation of the matched-filter technique to detect tidal tails of globular clusters. The method was tested using the Sloan Digital Sky Survey (SDSS) data for the globular cluster Palomar 5 revealing its ...