NGC 3521: Stellar Counter-Rotation Induced by a Bar Component

Details NGC 3521: Stellar Counter-Rotation Induced by a Bar Component NGC 3521: Stellar Counter-Rotation Induced by a Bar Component

Mar 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ap%26ss.276..643z&link_type=abstract

Astrophysics and Space Science, v. 276, Issue 2/4, p. 643-650 (2001).

Astronomy and Astrophysics

Astrophysics

4

Scientific paper

The spiral galaxy NGC 3521 exhibits apparently normal kinematic properties of gas and stars along its major axis. However, the analysis of the LOSVD reveals strong asymmetries. A decomposition of the LOSVD data with a two-Gaussian component model shows two counter-rotating stellar components. The observed kinematic decoupling is interpreted as a projection effect induced by the presence of a bar component seen almost end on. The bar produces locally a greater concentration of retrograde stellar orbits but this does not relate to a specific counter-rotating population. The signatures of the bar are identified in the velocity field derived from long-slit spectra obtained along the major, minor and 45° intermediate axes and from R-band surface photometry.

Affiliated with

Also associated with

No associations

Rating

NGC 3521: Stellar Counter-Rotation Induced by a Bar Component 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 NGC 3521: Stellar Counter-Rotation Induced by a Bar Component, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NGC 3521: Stellar Counter-Rotation Induced by a Bar Component will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1005417