A Fast Bar in the Post-Interaction Galaxy NGC 1023

Details A Fast Bar in the Post-Interaction Galaxy NGC 1023 A Fast Bar in the Post-Interaction Galaxy NGC 1023

2001-12-12

arxiv.org/abs/astro-ph/0112288v1

Mon.Not.Roy.Astron.Soc. 332 (2002) 65

Astronomy and Astrophysics

Astrophysics

13 pages, 10 figures. Accepted for publication at MNRAS

Scientific paper

10.1046/j.1365-8711.2002.05269.x

We measured the bar pattern speed, $\om$, of the SB0 galaxy NGC 1023 using the Tremaine-Weinberg (1984) method with stellar-absorption slit spectroscopy. The morphology and kinematics of the \hi gas outside NGC 1023 suggest it suffered a tidal interaction, sometime in the past, with one of its dwarf companions. At present, however, the optical disc is relaxed. If the disc had been stabilized by a massive dark matter halo and formed its bar in the interaction, then the bar would have to be slow. We found $\om = 5.0 \pm 1.8$ \kmsa, so that the bar ends near its co-rotation radius. It is therefore rotating rapidly and must have a maximum disc.

Affiliated with

Also associated with

No associations

Rating

A Fast Bar in the Post-Interaction Galaxy NGC 1023 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 A Fast Bar in the Post-Interaction Galaxy NGC 1023, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Fast Bar in the Post-Interaction Galaxy NGC 1023 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-82145