The orbital structure of the massive elliptical galaxy NGC 5846

Details The orbital structure of the massive elliptical galaxy NGC 5846 The orbital structure of the massive elliptical galaxy NGC 5846

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008an....329..940d&link_type=abstract

Astronomische Nachrichten, Vol.329, Issue , p.940-943

Astronomy and Astrophysics

Astronomy

Celestial Mechanics, Stellar Dynamics, Dark Matter, Galaxies: Elliptical And Lenticular, Cd, Galaxies: Halos, Galaxies: Individual (Ngc 5846), Planetary Nebulae: General, X-Rays: Galaxies

Scientific paper

We use density and temperature profiles obtained from XMM-Newton observations to derive a potential of NGC 5846 out to 11R_e, thus probing the mass distribution deep into the halo. The inferred circular velocity is significantly higher than the extrapolation of dynamical models implying a halo, more massive than previously thought. Using an I-band surface-brightness profile and a projected velocity dispersion profile consisting of long-slit kinematic measurements and planetary nebulae (PNe) velocity dispersions, we solve the Jeans equations, assuming a non-rotating spherical system. The solutions suggest a highly radially anisotropic galaxy outside 0.7R_e with β˜ 0.75.

Affiliated with

Also associated with

No associations

Rating

The orbital structure of the massive elliptical galaxy NGC 5846 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 The orbital structure of the massive elliptical galaxy NGC 5846, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The orbital structure of the massive elliptical galaxy NGC 5846 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1101516