While the exact definition of “clearing the neighborhood” was not established at press time, the eight planets from Mercury through Neptune have either assimilated or repulsed most other objects in their orbits, and each has more mass than the combined total of everything else in its area. T...
An Astronomical Catalog is a collection of data on celestial bodies obtained from ground-based and space-born telescopes, accessible through web portals, providing multiwavelength information and software tools for astronomical calculations. AI generated definition based on: Knowledge Discovery in Big Data...
The ground laser gravitational wave station and the VIRGO gravitational wave detector first detected the time and space of the neutron star fusion process, followed by the most powerful spatial and terrestrial telescopes. In addition to improving the recognition of gravitational waves, it was confirmed...
We present a non-parametric method for decomposition of the light of disk galaxies into disk, bulge and bar components. We have developed and tested the method on a sample of 68 disk galaxies for which we have acquired I-band photometry. The separation of disk and bar light relies on the...
With respect to the other ‘observational’ environment proxies based on galaxy number densities, such as the quantity N used in Section 3.1, M200 is a more physically meaningful quantity and has a unique definition, whereas the other estimators are sensitive to the size of the region chosen to...
This difference reflects in part differences in the working definition of a halo. The Munich models track the set of particles that correspond to the most massive subhalo within the FOF group across output times (cf. Croton et al. 2006), whereas the Durham models track the set of particles...
1). In order to match the Lick/IDS system, we removed the offsets from our data. The median measurement errors in the indices, for our sample galaxies, are given in column 4 of Table 1. For a definition of non-standard line-strength indices see Section 2.5....