We present results from an imaging survey of an unbiased sample of thirty-eight early-type (S0--Sa), low-inclination, optically barred galaxies in the field. Our goal was to find and characterize central stellar and gaseous structures: secondary bars, inner disks, and nuclear rings. Bars inside bars are surprisingly common: at least one quarter of the sample galaxies (possibly as many as 40%) are double-barred, with no preference for Hubble type or the strength of the primary bar. A typical secondary bar is ~12% of the size of its primary bar and 240--750 pc in radius. We see no significant effect of secondary bars on nuclear activity. We also find kiloparsec-scale inner disks in at least 20% of our sample, almost exclusively in S0 galaxies...
International audienceThe fractions and dimension of bars, rings and lenses are studied in the near-...
Abstract Context: Stellar bars are known to gradually funnel gas to the central parts of disk galax...
Galactic bars are one of the main drivers of secular evolution in disc galaxies, in particular by re...
Inner bars are frequent structures in the local Universe and thought to substantially influence the ...
I present a catalog of 67 barred galaxies which contain distinct, elliptical stellar structures insi...
We present results from a preliminary analysis of a recently-completed, multicolor imaging survey of...
We have found four barred S0 galaxies -- NGC 936, NGC 3945, NGC 4340, and NGC 4371 -- which contain ...
ABSTRACT About one-third of early-type barred galaxies host small-scale secondary bars. The formatio...
About one-third of early-type barred galaxies host small-scale secondary bars. The formation and evo...
Bars are a major driver of secular evolution in disc galaxies, promoting the inflow of gas to the ce...
Using IFS observations obtained in the MUSE TIMER survey, we derive stellar population properties in...
Context. Stellar bars are known to gradually funnel gas to the central parts of disk galaxies. It re...
Abstract Rings are distinctive features of many disc galaxies and their location and properties are...
The centres of disc galaxies host a variety of structures built via both internal and external proce...
In this thesis we shed light on the formation and evolution of disk galaxies, which often host a ste...
International audienceThe fractions and dimension of bars, rings and lenses are studied in the near-...
Abstract Context: Stellar bars are known to gradually funnel gas to the central parts of disk galax...
Galactic bars are one of the main drivers of secular evolution in disc galaxies, in particular by re...
Inner bars are frequent structures in the local Universe and thought to substantially influence the ...
I present a catalog of 67 barred galaxies which contain distinct, elliptical stellar structures insi...
We present results from a preliminary analysis of a recently-completed, multicolor imaging survey of...
We have found four barred S0 galaxies -- NGC 936, NGC 3945, NGC 4340, and NGC 4371 -- which contain ...
ABSTRACT About one-third of early-type barred galaxies host small-scale secondary bars. The formatio...
About one-third of early-type barred galaxies host small-scale secondary bars. The formation and evo...
Bars are a major driver of secular evolution in disc galaxies, promoting the inflow of gas to the ce...
Using IFS observations obtained in the MUSE TIMER survey, we derive stellar population properties in...
Context. Stellar bars are known to gradually funnel gas to the central parts of disk galaxies. It re...
Abstract Rings are distinctive features of many disc galaxies and their location and properties are...
The centres of disc galaxies host a variety of structures built via both internal and external proce...
In this thesis we shed light on the formation and evolution of disk galaxies, which often host a ste...
International audienceThe fractions and dimension of bars, rings and lenses are studied in the near-...
Abstract Context: Stellar bars are known to gradually funnel gas to the central parts of disk galax...
Galactic bars are one of the main drivers of secular evolution in disc galaxies, in particular by re...