heavy elements

At least one earlier supernova must have provided the early star with its tiny percentage of heavy elements.

But most stars are not massive enough to create the pressures and heat necessary to burn heavy elements, so fusion and heat production stop.

But the new study shows that some nooks of the universe remained pristine long after stars had begun to spew heavy elements.

Forged by the Milky Way's abundant stars, such heavy elements are the building blocks of terrestrial planets.

A large number of radioactive isotopes among the heavy elements are of three series.

By means of SR X-ray fluorescence, we have studied the heavy elements in leaves for 8 species of plants in Zhongshan mine, Anhui province.

Red giants are hot enough to turn the helium at their core, which was made by fusing hydrogen, into heavy elements like carbon.

moreover , heat energy generated during decay of heavy elements like uranium at the centre of the earth triggers tectonic movement.

Only a smattering of heavy elements separates this star from the universe's original creations.

Heavy elements flung out into space by supernovae end up in the rocks of planets such as the Earth.

Rare earth metals are often all found together, typically with far more light than heavy elements.

The team's measurement of thorium revealed the overall abundance pattern of heavy elements for this object.

As time passes and stars continue to manufacture heavy elements, the balance everywhere will tilt in favor of carbon.

Heavy elements have nuclei with large positive charges, which makes it more likely that they have strong spin-orbit coupling.

Among this group, most of those with traces of heavy elements also have traces of hydrogen.

Radium, uranium, and many other heavy elements found in rocks and soil are naturally radioactive.

It is found that the level of toxic heavy elements is higher in the industrial and populous cities and lower in the small towns.

Petitjean and Scannapieco are working together on the clustering of heavy elements observed in quasar spectra.

Heavy elements are equally essential for life: Witness the oxygen we breathe, the calcium in our bones, the iron in our blood.

At the same time, the galaxy expels gas loaded with heavy elements into its halo and maybe even into intergalactic space.

The fallout contained heavy elements and isotopes not found in nature.

Inorganicpigment contains lead, chromium, mercury and other heavy elements, which have certain toxic.

In thinking about the galactic habitable zone, Lineweaver made the presence of heavy elements his prime criterion.

Strong end restraint provided by heavy elements, such as footings, can improve the flexural strength of critical column sections.

Stars congregate most tightly at the galaxy's center, so the life-giving heavy elements they create are most plentiful there.

Is it the case that there are no heavy elements there or that there are some, but they haven't mixed into the clouds that they see?

A Scheme for Jointed Two Component-scalar Relativistic Density Functional Calculations of Systems Containing Heavy Elements

Possibilities involving normal baryonic matter include brown dwarfs or perhaps small, dense chunks of heavy elements;

Methyl Compound of the Heavy Elements and Its Distribution Under the Natural Environment

Probability for Studying Atomic Spectroscopy of Very Heavy Elements

Sites for r-process Nucleosynthesis and Scatter of Abundance for Heavy Elements

for some transition elements and heavy elements, the XAES peak shifts may be larger than XPS ones;

On the Distribution of the Solar Heavy Elements

Progress in the Study of Abundances of Heavy Elements in Metal-Poor Stars

There are ways to develop nuclear energy there are two: First, the fission of heavy elements, such as uranium fission ;