Simulations of sinking satellites revisited
نویسندگان
چکیده
منابع مشابه
Sinking Satellites and Tilting Disk Galaxies
The infall of a satellite galaxy onto a galactic disk generally brings in angular momentum that is not aligned with the axis of the disk. The main dynamical issues addressed are what fraction of the orbital angular momentum of the satellite and the associated energy is added to the disk, as opposed to being left in the halo, and whether the absorbed fraction is added coherently or thermalized i...
متن کاملSinking Satellites and the Heating of Galaxy Discs
We have carried out a set of self-consistent N-body simulations to study the interaction between disc galaxies and merging satellites with the aim of determining the disc kinematical changes induced by such events. We explore a region of the parameter space embracing satellites with different masses and internal structure and orbits of various eccentricities. We find that the analytic estimates...
متن کاملThe Dynamics of Sinking Satellites Around Disk Galaxies: A Poor Man’s Alternative to High-Resolution Numerical Simulations
We have developed a simple yet surprisingly accurate analytic scheme for tracking the dynamical evolution of substructure within larger dark halos. The scheme incorporates the effects of dynamical friction, tidal mass loss and tidal heating via physically motivated approximations. Using our scheme, we can predict the orbital evolution and mass-loss history of individual subhalos in detail. We a...
متن کاملSinking treasure
social engagements. With the Bologna system, everything is fitted to match a 40 hour per week work schedule for the entire year allowing only for 6 weeks of holiday and one week of illness. Many students are now protesting against this reduction of university to a school-like system. Students also protested against tuition fees, which have been introduced only recently in a break with a long tr...
متن کاملThat sinking feeling.
Y ou are doing a breast reduction. You have chosen a vertical flap and inverted T incision. You like the vertical reduction and medial pedicle because there is a shorter incision , but you think there will be too much skin excess, so it will be better to excise it now. For some reason, every time you do the inferior pedicle the base of the pedicle becomes thin and narrow. This worries you. You ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1988
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/235.1.289