Hubble Space Telescope imaging of the Seyfert 2 galaxy NGC 2110

Details Hubble Space Telescope imaging of the Seyfert 2 galaxy NGC 2110 Hubble Space Telescope imaging of the Seyfert 2 galaxy NGC 2110

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...433..625m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 433, no. 2, p. 625-630

Astronomy and Astrophysics

Astronomy

40

Emission Spectra, Galactic Structure, Radio Astronomy, Radio Jets (Astronomy), Seyfert Galaxies, Visible Spectrum, Astronomical Photography, H Alpha Line, Hubble Space Telescope, Interstellar Extinction, Morphology, Nitrogen, Oxygen

Scientific paper

Hubble Space Telescope (HST) images of the Seyfert 2 galaxy NGC 2110 in the emission lines of (O III) lambda lambda-4959, 5007 and H-alpha + (N II) lambda lambda-6548, 6584 and the nearby continuum are presented. After deconvolution, the resolution of these images is approximately 0.1 sec, corresponding to a linear scale of approximately 23 pc at the assumed distance (46.8 Mpc) to this galaxy. The dominant line emission is associated with a strongly curved, narrow, 1 sec (230 pc) long feature emanating from the nucleus to the north. The morphology of this feature suggests that it may represent gas flowing outward from the nucleus (perhaps as a 'jet'). While this optical emission-line feature and the jetlike radio emission extend along a similar P.A., their detailed brightness distributions are loosely anticorrelated. In particular, there is no line emission associated with the off-nuclear 6 cm peaks and only weak radio emission along the optical 'jet'. On a larger scale, there is an S-shaped distribution of ionized gas (seen best in H-alpha) extending approximately 4 sec north and south of the nucleus. Ground-based kinematical data suggest this larger scale component represents normally rotating, ambient, interstellar gas photoionized by the central source. A continuum color map derived from HST observations shows evidence for an unresolved region (scale less than 23 pc) of very strong reddening at the location of the optical and radio nucleus. The location and size of the reddened region are consistent with obscuration by a dusty torus, but the observed reddening provides only a lower limit (AV greater than or equal to 4.6-1.7+1.2 mag) on the amount of obscuration to the nucleus. Nevertheless, this obscuration is sufficient to account for the 'energy deficit' previously reported in this object.

Affiliated with

Also associated with

No associations

Rating

Hubble Space Telescope imaging of the Seyfert 2 galaxy NGC 2110 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Hubble Space Telescope imaging of the Seyfert 2 galaxy NGC 2110, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hubble Space Telescope imaging of the Seyfert 2 galaxy NGC 2110 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1070298