| Title | A 21-cm study of the Seyfert galaxy NGC 4151. |
| Authors | Bosma, A.; Ekers, R. D.; Lequeux, J. |
| Bibcode | 1977A&A....57...97B Search ADS ↗ |
| Abstract | Observations in the 21-cm H I line are reported for the Seyfert galaxy NGC 4151. No H I is seen in absorption in front of the nucleus except a possible weak narrow feature which may be H I in the disk. The H I emission distribution has been mapped with 60-arcsec resolution, and the velocity field determined. The velocities from 1 to 5 arcmin from the center are consistent with pure rotation and a dynamical major axis in position angle 19 deg. This supports the conclusion that the central dominant structure is a thick bar. The H I distribution is coincident with the faint outer optical arms. |
| Objects | 4 Objects Search NED ↙ |
