144 citations · 437 across the 10 of their papers we have counts for
10 papers
Linking star formation thresholds and truncations in the thin and thick disks of the low-mass galaxy UGC 7321
Simón Díaz-García, Sébastien Comerón, Stéphane Courteau +3
Thin and thick disks are found in most spiral galaxies, yet their formation scenarios remain uncertain. Whether thick disks form through slow or fast, internal or environmental, pr…
Molecular gas and star formation within 12 strong galactic bars observed with IRAM-30m
Simón Díaz-García, Ute Lisenfeld, Isabel Pérez +8
While some galactic bars show recent massive star formation (SF) along them, some others present a lack of it. Whether bars with low level of SF are a consequence of low star forma…
Gas fractions and depletion times in galaxies with different degrees of interaction
Simón Díaz-García, Johan H. Knapen
We study the atomic gas content and the central stellar mass concentration for a sample of almost 1500 nearby galaxies to investigate the nature of starbursts and the influence of…
Rings and spiral arms: are they coupled with bars?
Simón Díaz-García, Johan H. Knapen, Heikki Salo +2
Rings and spiral arms are distinctive features of many galaxies, and their properties are closely related to the disk dynamics. They are often associated to stellar bars, but the d…
The shapes of spiral arms in the SG survey and their connection with stellar bars
Simón Díaz-García, Heikki Salo, Johan H. Knapen +1
Spiral galaxies are common in the local Universe, but their formation, evolution, and interplay with bars remain poorly understood. We use a sample of 391 nearby galaxies from the…
Inner and outer rings are not strongly coupled with stellar bars
Simón Díaz-García, Sergio Díaz-Suárez, Johan H. Knapen +1
We study the frequency and dimensions of inner and outer rings in the local Universe as a function of disk parameters and the amplitude of non-axisymmetries. We use the 1320 not-hi…
Stellar mass distribution of SG disk galaxies and signatures of bar-induced secular evolution
Simón Díaz-García, Heikki Salo, Eija Laurikainen
We use 3.6 m photometry from the Spitzer Survey of Stellar Structure in Galaxies (SG) to trace the stellar distribution in nearby disk galaxies () with total st…
Characterization of galactic bars from 3.6 m SG imaging
Simón Díaz-García, Heikki Salo, Eija Laurikainen +1
We use the Spitzer Survey of Stellar Structure in Galaxies (SG) 3.6 m imaging to study the properties (length and strength) and fraction of bars at . We use the maxim…
H-alpha kinematics of S4G spiral galaxies-II. Data description and non-circular motions
Santiago Erroz-Ferrer, Johan H. Knapen, Ryan Leaman +15
We present a kinematical study of 29 spiral galaxies included in the Spitzer Survey of Stellar Structure in Galaxies, using Halpha Fabry-Perot data obtained with the Galaxy Halpha…
X-ray nuclear activity in S4G barred galaxies: No link between bar strength and co-occurrent supermassive black hole fueling
Mauricio Cisternas, Dimitri Gadotti, Johan H. Knapen +23
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…