Sentences with phrase «stellar density»

This stellar concentration matches theoretical models linking stellar density to a central black hole's mass.

Globular clusters are very tightly bound by gravity, which gives them their spherical shapes and relatively high stellar densities toward their centers.

It has been argued that these discs will last longer in low stellar density environments because stellar encounters and UV radiation all erode disks.

This is one... ▽ More We describe three useful applications of asteroseismology in the context of exoplanet science: (1) the detailed characterisation of exoplanet host stars; (2) the measurement of stellar inclinations; and (3) the determination of orbital eccentricity from transit duration making use of asteroseismic stellar densities.

Every distance, orbit, planet, moon, ring and crater is as real as we could make it, with some 160,000 stars in the game taken from real star catalogues, with the rest of the 400 billion stars coming from stellar density maps to make the whole galaxy as accurate as possible.

The low stellar $ \ log -LCB- g -RCB- $ and large implied radius are supported by stellar density constraints from follow - up light curves, plus an evolutionary and space motion analysis.

We discuss further work that correlates «flicker» with stellar density, allowing the application of astrodensity profiling techniques used in exoplanet characterization to many more stars.

When more candidates have become observed in follow - up, it will be very interesting to divide the CoRoT sample into candidates in the center and anticenter fields, which have different stellar densities; this should provide more detailed insight into the abundances of diluted and undiluted binaries.

Compact elliptical galaxies form a rare class of stellar system (~ 30 presently known) characterized by high stellar densities and small sizes and often harboring metal - rich stars.

The dwarfs» low stellar densities (and correspondingly low gravitational forces) make them especially good places to look for MONDian effects.

Abstract: We describe three useful applications of asteroseismology in the context of exoplanet science: (1) the detailed characterisation of exoplanet host stars; (2) the measurement of stellar inclinations; and (3) the determination of orbital eccentricity from transit duration making use of asteroseismic stellar densities.

By comparison, the new stellar systems are so faint that they are difficult to «see» even in the deep DES images and can be more easily visualized using maps of the stellar density (inset).

Similar streams of stars — curved, elongated regions with high stellar densities — have been found in the outer halo of our own Milky Way galaxy.

The stellar density of the contaminants, dominated in CoRoT by stars 3 mag fainter than the faintest target (Deeg et al. 2009), is an estimated factor of 9 times larger in CoRoT than for the sample analyzed by Brown.

The stellar density of the faint dwarf galaxies (one star per million cubic parsecs) is about a million times lower than that in the neighbourhood of the Sun, or almost a billion times lower than in the bulge of the Milky Way.