Sentences with phrase «mass than the sufficient»

Not exact matches

Having a mass of only less than seven per cent of the mass of the Sun, they are unable to create sufficient pressure and heat in their interiors to ignite hydrogen - to - helium fusion, a fundamental physical mechanism by which stars generate radiation.

Other photographed objects have been too massive to be conclusively labeled planets, falling instead into the brown dwarf category (objects about eight to 80 Jupiters in size that lack sufficient mass to ignite hydrogen fusion in their cores, thereby never becoming true stars); have been found to themselves orbit brown dwarfs rather than stars; or have not been shown to be gravitationally bound to a star.

Because a «small» protoplanet (up to a few Earth masses) lacks sufficient gravitational pull to open a gap in the protostar's disk, it will move inward as the disk lying inside the protoplanet's orbit transfers angular momentum to it at a slower rate than it is transferring angular momentum to the outer disk (through interactions with Lindblad resonances induced in the disk).

Measuring in at around half the size of Makemake, RR245 is much smaller than other known dwarf planets in the neighborhood, but still meets the International Astronomical Union's (IAU) criteria of that category: namely, it's in orbit around the Sun, it has sufficient mass for its self - gravity to overcome rigid body forces so that it assumes a nearly round shape, and, unlike regular planets, it hasn't cleared the neighbourhood around its orbit, and it isn't a satellite.

While larger planets could have sufficient gravity to attract a massive hydrogen - helium atmosphere, smaller planets — like Mars or Mercury that have less than half the Earth's mass — located in or near their star's habitable zone may lose their initial life - supporting atmosphere because of low gravity and / or the lack of plate tectonics needed to recycle heat - retaining carbon dioxide gas back into the atmosphere (Kasting et al, 1993).

Vegan protein has been shown to be more than sufficient in maintaining the muscle mass of seniors, even if they get slightly less protein than nonvegetarians.

We have yet to take sufficient note of a historic development in public education: A critical mass of schools is establishing, with more assurance than ever, that children can achieve at high standards regardless of race or economic disadvantage.

Re 423 Chris G — whether the effect saturates at a given density depends on the way the temperature is distributed; if the temperature from TOA downward is isothermal for a sufficient thickness, than the effect could be saturated at TOA (if starting from a large enough optical thickness per unit atmospheric mass path, a change in the density of the gas / etc that contributes optical thickness would then have little to no effect on the flux at TOA, which is what is meant by saturation.

We hypothesize that ice mass loss from the most vulnerable ice, sufficient to raise sea level several meters, is better approximated as exponential than by a more linear response.

Recent expert consensus recommendations for interventions following mass violence suggest that structured cognitive - behavioural interventions not be implemented until secondary stressors in the environment are under sufficient control to allow the individual to focus on the intervention (usually not sooner than three weeks after incident).2 Bisson's use of this intervention suggests that it can have an impact within the 5 — 10 week window.