521 citations · 3.6k across the 47 of their papers we have counts for
26 papers · 1 filter
Gas-Phase metallicity for the Seyfert galaxy NGC 7130
Amirnezam Amiri, Johan H. Knapen, Sébastien Comerón +2
Metallicity measurements in galaxies can give valuable clues about galaxy evolution. One of the mechanisms postulated for metallicity redistribution in galaxies is gas flows induce…
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…
The multifarious ionization sources and disturbed kinematics of extraplanar gas in five low-mass galaxies
R. P. V. Rautio, A. E. Watkins, S. Comerón +3
We investigate the origin of the extraplanar diffuse ionized gas (eDIG) and its predominant ionization mechanisms in five nearby (17-46 Mpc) low-mass ( $M_{\od…
The distribution of star formation in galactic bars as seen with H and stacked GALEX UV imaging
Simón Díaz-García, Facundo D. Moyano, Sébastien Comerón +3
We investigate the spatial distribution of star formation (SF) within bars of nearby disk galaxies (inclination ) from the SG survey. We use archival GALEX far- a…
Nonaxisymmetric models of galaxy velocity maps
Francesco Sylos Labini, David Benhaiem, Sebastien Comeron +1
Galaxy velocity maps often show the typical pattern of a rotating disk, consistent with the dynamical model where emitters rotate in circular orbits around the galactic center. The…
The reports of thick discs' deaths are greatly exaggerated: thick discs are NOT artefacts caused by diffuse scattered light
Sébastien Comerón, Heikki Salo, Johan H. Knapen
Recent studies have made the community aware of scattered light when examining low-surface-brightness galaxy features such as thick discs. In our past studies of the thick discs of…
The (dark) halo-to-stellar mass ratio in the Spitzer Survey of Stellar Structure in Galaxies (SG)
Simón Díaz-García, Heikki Salo, Eija Laurikainen +1
We use 3.6 m photometry for 1154 disk galaxies () in the Spitzer Survey of Stellar Structure in Galaxies (SG, Sheth et al. 2010) to obtain the stellar compon…
A monolithic collapse origin for the thin/thick disc structure of ESO 243-49
S. Comerón, H. Salo, R. F. Peletier +1
ESO 243-49 is a high-mass (circular velocity ) edge-on S0 galaxy in the Abell 2877 cluster at a distance of . To elucidate…
Halpha Kinematics of S4G Spiral Galaxies - III. Inner rotation curves
Santiago Erroz-Ferrer, Johan H. Knapen, Ryan Leaman +10
We present a detailed study of the shape of the innermost part of the rotation curves of a sample of 29 nearby spiral galaxies, based on high angular and spectral resolution kinema…
Globular Cluster Populations: Results Including SG Late-Type Galaxies
Dennis Zaritsky, Kelsey McCabe, Manuel Aravena +18
Using 3.6 and 4.5m images of 73 late-type, edge-on galaxies from the SG survey, we compare the richness of the globular cluster populations of these galaxies to those of ear…
Galactic archaeology of a thick disc: Excavating ESO 533-4 with VIMOS
S. Comerón, H. Salo, J. Janz +2
The formation mechanisms of thick discs are under discussion. Thick discs might have formed either at high redshift on a short time-scale or might have been built slowly over time.…
The Odd Offset between the Galactic Disk and Its Bar in NGC 3906
Bonita de Swardt, Kartik Sheth, Taehyun Kim +27
We use mid-infrared 3.6 and 4.5microns imaging of NGC 3906 from the Spitzer Survey of Stellar Structure in Galaxies (S4G) to understand the nature of an unusual offset between its…
The Spitzer Survey of Stellar Structure in Galaxies (S4G): Stellar Masses, Sizes and Radial Profiles for 2352 Nearby Galaxies
Juan Carlos Munoz-Mateos, Kartik Sheth, Michael Regan +25
The Spitzer Survey of Stellar Structure in Galaxies (S4G) is a volume, magnitude, and size-limited survey of 2352 nearby galaxies with deep imaging at 3.6 and 4.5um. In this paper…
A Classical Morphological Analysis of Galaxies in the Spitzer Survey of Stellar Structure in Galaxies (S4G)
R. Buta, K. Sheth, E. Athanassoula +22
The Spitzer Survey of Stellar Structure in Galaxies (S4G) is the largest available database of deep, homogeneous middle-infrared (mid-IR) images of galaxies of all types. The surve…
The Mass Profile and Shape of Bars in the Spitzer Survey of Stellar Structure in Galaxies (S4G): Search for an Age Indicator for Bars
Taehyun Kim, Kartik Sheth, Dimitri A. Gadotti +24
We have measured the radial light profiles and global shapes of bars using two-dimensional 3.6 image decompositions for 144 face-on barred galaxies from the Spitzer Survey of…
Globular Cluster Populations: First Results from SG Early-Type Galaxies
Dennis Zaritsky, Manuel Aravena, E. Athanassoula +14
Using 3.6m images of 97 early-type galaxies, we develop and verify methodology to measure globular cluster populations from the SG survey images. We find that 1) the ratio,…
Evidence for the concurrent growth of thick discs and central mass concentrations from SG imaging
Sébastien Comerón, Bruce G. Elmegreen, Heikki Salo +3
We have produced vertically integrated radial luminosity profiles of 69 edge-on galaxies from the Spitzer Survey of Stellar Structure in Galaxies (SG)…
The Spitzer Survey of Stellar Structure in Galaxies (SG): Precise Stellar Mass Distributions from Automated Dust Correction at 3.6 microns
M. Querejeta, S. E. Meidt, E. Schinnerer +26
The mid-infrared is an optimal window to trace stellar mass in nearby galaxies and the 3.6 IRAC band has been exploited to this effect, but such mass estimates can be biased by…
IRAC Near-Infrared Features in the Outer Parts of S4G Galaxies
Seppo Laine, Johan H. Knapen, Juan-Carlos Munoz-Mateos +26
We present a catalogue and images of visually detected features, such as asymmetries, extensions, warps, shells, tidal tails, polar rings, and obvious signs of mergers or interacti…
Morphology and environment of galaxies with disc breaks in the S4G and NIRS0S
J. Laine, E. Laurikainen, H. Salo +16
We study the surface brightness profiles of disc galaxies in the 3.6 micron images from the Spitzer Survey of Stellar Structure in Galaxies (S4G) and K_s-band images from the Near…
The Baryonic Tully-Fisher Relationship for SG Galaxies and the "Condensed" Baryon Fraction of Galaxies
Dennis Zaritsky, Helene Courtois, Juan-Carlos Muñoz-Mateos +20
We combine data from the Spitzer Survey for Stellar Structure in Galaxies (SG), a recently calibrated empirical stellar mass estimator from Eskew et al., and an extensive datab…
Reconstructing the stellar mass distributions of galaxies using S4G IRAC 3.6 and 4.5 micron images: II. The conversion from light to mass
Sharon E. Meidt, Eva Schinnerer, Glenn van de Ven +26
We present a new approach for estimating the 3.6 micron stellar mass-to-light ratio in terms of the [3.6]-[4.5] colors of old stellar populations. Our approach avoids several of th…
Unveiling the Structure of Barred Galaxies at 3.6 with the Spitzer Survey of Stellar Structure in Galaxies (SG): I. Disk Breaks
Taehyun Kim, Dimitri A. Gadotti, Kartik Sheth +24
We have performed two-dimensional multicomponent decomposition of 144 local barred spiral galaxies using 3.6 images from the Spitzer Survey of Stellar Structure in Galax…
ARRAKIS: Atlas of Resonance Rings As Known In the S4G
S. Comerón, H. Salo, E. Laurikainen +19
Resonance rings are the consequence of secular evolution processes that redistribute material and angular momentum in discs. We produced a Catalogue and an Atlas of the rings detec…