Growth of disc-like pseudo-bulges in SDSS DR7 since z = 0.1

  title={Growth of disc-like pseudo-bulges in SDSS DR7 since z = 0.1},
  author={Ankit Kumar and Sandeep Kumar Kataria},
  journal={Monthly Notices of the Royal Astronomical Society},
Cosmological simulations predict more classical bulges than their observational counterpart in the local Universe. Here, we quantify evolution of the bulges since z = 0.1 using photometric parameters of nearly 39,000 unbarred disc galaxies from SDSS DR7 which are well represented by two components. We adopted a combination of the Sérsic index and Kormendy relation to separate classical bulges and disc-like pseudo-bulges. We found that the fraction of pseudo-bulges (classical bulges) smoothly… 



Observed properties of boxy/peanut/barlens bulges

We review the observed morphological, photometric, and kinematic properties of boxy/peanut (B/P) shape bulges. Nearly half of the bulges in the nearby edge-on galaxies have these characteristics,

Boxy/Peanut/X Bulges, Barlenses and the Thick Part of Galactic Bars: What Are They and How Did They Form?

Bars have a complex three-dimensional shape. In particular their inner part is vertically much thicker than the parts further out. Viewed edge-on, the thick part of the bar is what is commonly known

Evolution of the pseudo bulges

  • MNRAS,
  • 2019

Elliptical and Disk Galaxy Structure and Modern

  • Gargiulo I. D., et al., 2019,
  • 2019