SIMBAD references

1999ApJ...519L.127B - Astrophys. J., 519, L127-L130 (1999/July-2)

The bulge-disk orthogonal decoupling in galaxies: NGC 4698.

BERTOLA F., CORSINI E.M., VEGA BELTRAN J.C., PIZZELLA A., SARZI M., CAPPELLARI M. and FUNES J.G.

Abstract (from CDS):

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 of the bulge if a parametric photometric decomposition is adopted. At the same time, the stellar component is characterized by an inner velocity gradient and a central zero-velocity plateau along the minor and major axes of the disk, respectively. This remarkable geometric and kinematic decoupling suggests that a second event occurred in the formation history of this galaxy.

Abstract Copyright:

Journal keyword(s): Galaxies: Formation - Galaxies: Individual: NGC Number: NGC 4698 - Galaxies: Kinematics and Dynamics - Galaxies: Spiral - Galaxies: Structure

Simbad objects: 6

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