Associated with one of the most important forms of active galactic nucleus (AGN) feedback,
and showing a strong preference for giant elliptical host galaxies, radio AGN (L_ 1.4\, GHz> …

This paper reviews surface photometry of bulges and elliptical galaxies. Work prior to 1982
is discussed by Kormendy (1982). Since then, the subject has gone through a revolution …

Observations indicate that much of the interstellar gas in merging galaxies may settle into
extended gaseous discs. Here, I present simulations of disc formation in mergers of gas-rich …

Attention has recently been drawn to the existence of sharply defined, shell-like, optical
features in the outer regions of many elliptical galaxies. Simple N-body models have been …

Formation of shell galaxies. I - Spherical potentials ADS Classic is now deprecated. It will be
completely retired in October 2019. This page will automatically redirect to the new ADS …

At a distance of 3.4 Mpc, NGC 5128 (Centaurus A) is by far the nearest active radio galaxy. It
is often considered to be the prototype Fanaroff-Riley Class I 'low-luminosity'radio galaxy …

In this Letter, we present for the first time images and kinematics of neutral hydrogen, which
is unambiguously associated with the optical shells of an E/S0 galaxy, NGC 5128. Using the …

Using HST ACS, we have obtained deep optical images reaching stars well below the oldest
main-sequence turnoff in the spheroid, tidal stream, and outer disk of Andromeda. We have …

Shells are low surface brightness tidal debris that appear as interleaved caustics with large
opening angles, often situated on both sides of the galaxy centre. In this paper, we study the …

A dissipative N-body code is used to follow the evolution of a cold dark matter spectrum in
an {OMEGA}= 1, h= 0.5 background using cubes 40, 80, and 200 Mpc on a side. Half the …