A Counterrotating Bulge in the S(b) Galaxy NGC 7331

@article{Prada1996ACB,
  title={A Counterrotating Bulge in the S(b) Galaxy NGC 7331},
  author={F. Prada and C. Guti{\'e}rrez and R. Peletier and C. D. Mckeith},
  journal={The Astrophysical Journal},
  year={1996},
  volume={463}
}
We have found that the bulge of the large, nearby Sb galaxy NGC 7331 rotates retrograde to its disk. Analysis of spectra in the region of the near-IR Ca II triplet along the major axis shows that, in the radial range between 5'' and ~20'', the line-of-sight velocity distribution of the absorption lines has two distinct peaks and can be decomposed into a fast-rotating component with v/σ > 3, and a slower rotating, retrograde component with v/σ ~ 1-1.5. The radial surface brightness profile of… Expand
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References

SHOWING 1-10 OF 22 REFERENCES
Counterrotating stars in the disk of the SAB galaxy NGC 7217
  • 71
A counterrotating core in IC 1459
  • 136
Counterrotating Stellar Disks in Early-Type Spirals: NGC 3593
  • 66
Kinematics of Extragalactic Bulges: Evidence that some Bulges are Really Disks
  • 111
NGC 4550 : a laboratory for testing galaxy formation
  • 90
Cospatial Counterrotating Stellar Disks in the Virgo E7/S0 Galaxy NGC 4550
  • 125
COLORS AND COLOR GRADIENTS IN BULGES OF GALAXIES
  • 88
  • PDF
On the velocity fields of elliptical galaxies
  • 34
The formation of counterrotating cores in elliptical galaxies
  • 86
...
1
2
3
...