Polar-bulge galaxies

@article{Reshetnikov2015PolarbulgeG,
  title={Polar-bulge galaxies},
  author={Vladimir P Reshetnikov and Sergey S. Savchenko and Alexandr V Mosenkov and N. Ya. Sotnikova and Dmitry Bizyaev},
  journal={Astronomy Letters},
  year={2015},
  volume={41},
  pages={748-756}
}
Based on SDSS data, we have selected a sample of nine edge-on spiral galaxies with bulges whose major axes show a high inclination to the disk plane. Such objects are called polar-bulge galaxies. They are similar in their morphology to polar-ring galaxies, but the central objects in them have small sizes and low luminosities. We have performed a photometric analysis of the galaxies in the g and r bands and determined the main characteristics of their bulges and disks. We show that the disks of… 

The haloes and environments of nearby galaxies (HERON) – II. The outer structure of edge-on galaxies

We thank the anonymous reviewer for helpful comments on the paper. This research has made use of the NASA/IPAC Infrared Science Archive (IRSA; http://irsa.ipac.caltech.edu/frontpage/), and the

References

SHOWING 1-10 OF 35 REFERENCES

Disk-bulge decompositions of spiral galaxies in UBVRI

A sample of 26 bright spiral galaxies (B tot < 12.7) with low to medium inclination and without a bar was observed with UBVRI filters. The CAFOS focal reducer camera at the Calar Alto 2.2 m telescope

Polar-ring galaxies: the SDSS view on the symbiotic galaxies

Polar-ring galaxies are multi-spin systems, showing star formation in a blue late-type component, perpendicular to a red early-type one, revealing how galaxy formation can sometimes occur in

Families of galaxies in the μe–Re plane

Using a complete sample of Virgo cluster galaxies and a larger set of heterogeneous literature data, we show that ellipticals, early-type dwarfs, and bulges of S0s and of spirals form two distinct

Does the stellar disc flattening depend on the galaxy type

We analyse the dependence of the stellar disc flatness on the galaxy morphological type using 2D decomposition of galaxies from the reliable subsample of the Edge-on Galaxies in SDSS catalogue.

The Origin of Polar Ring Galaxies: Evidence for Galaxy Formation by Cold Accretion

Polar ring galaxies are flattened stellar systems with an extended ring of gas and stars rotating in a plane almost perpendicular to the central galaxy. We show that their formation can occur

The Bulge-Disk Orthogonal Decoupling in Galaxies: NGC 4698

The R-band isophotal map of the Sa galaxy NGC 4698 shows that the inner region of the bulge structure is elongated perpendicularly to the major axis of the disk; this is also true for the outer parts

Polar bulges and polar nuclear discs: the case of NGC 4698

The early-type spiral NGC 4698 is known to host a nuclear disc of gas and stars which is rotating perpendicularly with respect to the galaxy main disc. In addition, the bulge and main disc are

Structural properties of pseudo-bulges, classical bulges and elliptical galaxies: a Sloan Digital Sky Survey perspective

We have performed 2D bulge/bar/disc decompositions using g, r and i-band images of a representative sample of nearly 1000 galaxies from the Sloan Digital Sky Survey. We show that the Petrosian

Global structure and formation of polar-ring galaxies

We present an analysis of structural features of all known galaxies with optical polar rings. We nd a clear di- chotomy for objects of this peculiar class. Bulge-dominated S0 galaxies possess only

Formation of polar ring galaxies

Polar ring galaxies are peculiar systems in which a gas-rich, nearly polar ring surrounds an early-type or elliptical host galaxy. Two formation scenarios for these objects have been proposed: they