Spatial and kinematic segregation in star-cluster merger remnants
نویسندگان
چکیده
منابع مشابه
The Kinematic Structure of Merger Remnants
We use numerical simulations to study the kinematic structure of remnants formed from mergers of equal-mass disk galaxies. In particular, we show that remnants of dissipational mergers, which include the radiative cooling of gas, star formation, feedback from supernovae, and the growth of supermassive black holes, are smaller, rounder, have, on average, a larger central velocity dispersion, and...
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This paper is the second in a series exploring the properties of 51 optically selected, single-nuclei merger remnants. Spectroscopic data have been obtained for a subsample of 38mergers and combinedwith previously obtained infrared photometry to test whether mergers exhibit the same correlations as elliptical galaxies among parameters such as stellar luminosity and distribution, central stellar...
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We perform collisionlessN -body simulations of 1:1 galaxy mergers, using models which include a galaxy halo, disc and bulge, focusing on the behaviour of the halo component. The galaxy models are constructed without recourse to a Maxwellian approximation. We investigate the effect of varying the galaxies’ orientation, their mutual orbit, and the initial velocity anisotropy or cusp strength of t...
متن کاملThe Fate of Merger Remnants
Using published luminosity and molecular gas profiles of the merger remnants NGC 3921, NGC 7252 and Arp 220, we examine the expected morphological and kinematic structure of the resulting merger remnants, especially in light of the massive CO complexes that are observed in their nuclei. For NGC 3921 and NGC 7252 we find that even under the most optimistic estimates (normal IMF, no mass ejection...
متن کاملLuminosity Profiles of Merger Remnants
Using published luminosity and molecular gas profiles of the late-stage mergers NGC 3921, NGC 7252 and Arp 220, we examine the expected luminosity profiles of the evolved merger remnants, especially in light of the massive CO complexes that are observed in their nuclei. For NGC 3921 and NGC 7252 we predict that the resulting luminosity profiles will be characterized by an r law. In view of prev...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2016
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stw3325