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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…
Time-slicing spiral galaxies with SDSS-IV MaNGA
Thomas Peterken, Amelia Fraser-McKelvie, Alfonso Aragón-Salamanca +6
Spectra of galaxies contain a wealth of information about the stellar populations from which they are made. With integral-field unit (IFU) surveys, such data can be used to map out…
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…
Properties of extragalactic thick discs recovered from ultra-deep Stripe82 imaging
C. Martínez-Lombilla, J. H. Knapen
We study the structure of thick discs in extraordinary depth by reaching a surface brightness limit of 28.529~mag arcsec with combined ,,…
SDSS-IV MaNGA: Spatial Evolution of Star Formation Triggered by Galaxy Interactions
Hsi-An Pan, Lihwai Lin, Bau-Ching Hsieh +12
Galaxy interaction is considered a key driver of galaxy evolution and star formation (SF) history. In this paper, we present an empirical picture of the radial extent of interactio…
SDSS-IV MaNGA: Stellar Population Gradients Within Barred Galaxies
Amelia Fraser-McKelvie, Michael Merrifield, Alfonso Aragón-Salamanca +11
Bars in galaxies are thought to stimulate both inflow of material and radial mixing along them. Observational evidence for this mixing has been inconclusive so far however, limitin…