Now showing items 1-5 of 5

    • ARRAKIS: atlas of resonance rings as known in the S⁴G 

      Comerón, Sébastien; Salo, Heikki J.; Laurikainen, Eija; Knapen, Johan H.; Buta, Ronald J.; Herrera-Endoqui, M.; Laine, Jarkko; Holwerda, Benne Willem; Sheth, Kartik; Mizusawa, Trisha (2014-02)
      Context. Resonance rings and pseudorings (here collectively called rings) are thought to be related to the gathering of material near dynamical resonances caused by non-axisymmetries in galaxy discs. This means that they ...
    • Breaks in thin and thick disks of edge-on galaxies imaged in the Spitzer Survey of Stellar Structure in Galaxies (S4G) 

      Mizusawa, Trisha; Comeron, Sebastien; Elmegreen, Bruce G.; Salo, Heikki; Athanassoula, E.; Bosma, Albert; Knapen, Johan H.; Gadotti, Demitri A.; Sheth, Kartik; Laurikainen, Eija (2012-11-10)
      Breaks in the radial luminosity profiles of galaxies have until now been mostly studied averaged over disks. Here, we study separately breaks in thin and thick disks in 70 edge-on galaxies using imaging from the Spitzer ...
    • Morphology and environment of galaxies with disc breaks in the S4G and NIRS0S 

      Mizusawa, Trisha F.; Laine, Jarkko; Laurikainen, Eija; Salo, Heikki J.; Comerón, Sébastien; Buta, Ronald J.; Zaritsky, Dennis; Athanassoula, E.; Bosma, Albert; Muñoz-Mateos, Juan Carlos (2014-05-15)
      We study the surface brightness profiles of disc galaxies in the 3.6 μm images from the Spitzer Survey of Stellar Structure in Galaxies (S4G) and Ks-band images from the Near-Infrared S0-Sa galaxy Survey (NIRS0S).We ...
    • THE SPITZER SURVEY of STELLAR STRUCTURE in GALAXIES (S4G): MULTI-COMPONENT DECOMPOSITION STRATEGIES and DATA RELEASE 

      Salo, Heikki J.; Laurikainen, Eija; Laine, Jarkko; Comerón, Sébastien; Gadotti, Dimitri Alexei; Buta, Ronald J.; Sheth, Kartik; Zaritsky, Dennis; Ho, Luis; Mizusawa, Trisha (2015-07-20)
      The Spitzer Survey of Stellar Structure in Galaxies (S4G) is a deep 3.6 and 4.5 μm imaging survey of 2352 nearby (<40 Mpc) galaxies. We describe the S4G data analysis pipeline 4, which is dedicated to two-dimensional ...
    • X-ray nuclear activity in S4G barred galaxies: no link between bar strength and co-occurrent supermassive black hole fueling 

      Cisternas, Mauricio; Gadotti, Dimitri A.; Knapen, Johan H.; Kim, Taehyun; Díaz-García, Simón; Laurikainen, Eija; Salo, Heikki; González-Martín, Omaira; Ho, Luis C.; Mizusawa, Trisha (2013-10-10)
      Stellar bars can lead to gas inflow toward the center of a galaxy and stimulate nuclear star formation. However, there is no compelling evidence on whether they also feed a central supermassive black hole: by measuring the ...