Sentences with phrase «heavy chemical elements»
The term "heavy chemical elements" refers to a group of elements that are characterized by their high atomic mass and large atomic number. Full definition
These observations may help solve another long - standing question in astronomy: the origin of heavy chemical elements, like gold and platinum [5].
sciencedaily.com
First, the origin of many heavy chemical elements in the universe, including gold and platinum, has long been a puzzle.
Such objects are the main source of very heavy chemical elements like gold and platinum.
That is not enough time for stars containing heavy chemical elements to form and then transmit their light all the way to Earth.
[Astronomers call the hundred or so heavier chemical elements «metals.»]
«Breaking the rules: Heavy chemical elements alter theory of quantum mechanics.»
«Even larger amounts of neutrons can be generated [by bremsstrahlung radiation in heavy chemical elements], in particular in natural uranium.»
Light from some of the most distant stars and galaxies shows that they contain much heavier chemical elements, such as carbon, iron, and lead — elements that could not have been in the first generation of stars to form after the big bang.
Stars exploding as supernovae are the main sources of heavy chemical elements in the Universe.
Evolutionists therefore believe that the hundred or so heavier chemical elements (97 % of all chemical elements) were produced either deep inside stars or when some stars exploded as supernovas.
Furthermore, stars in the most distant galaxies contain heavy chemical elements.53 Therefore, according to the big bang theory, several generations of stars must have preceded those stars.
At the heart of immense stellar bodies, lighter elements were compressed and heated to exceedingly high temperatures and gradually became the heavy chemical elements (carbon, oxygen, nitrogen, phosphorous, etc.) required for life.
The heavy chemical elements required for life (carbon, oxygen, nitrogen, phosphorous, and so forth) took several billion years of cooking time at the heart of stars before supernovas eventually dispersed them throughout space.
The Population I category includes the Sun; these stars are rich in heavier chemical elements and form the disc of the Milky Way.
And Laporte concludes: «Further measurements of this kind offer the exciting prospect of tracing early star formation and the creation of the heavier chemical elements even further back into the early Universe.»
All the heavier chemical elements essential to life — including oxygen, nitrogen, carbon and iron — were forged in the bellies of stars.
Actually, the most distant stars, galaxies, and quasars that can be analyzed contain some of these heavy chemical elements.25
That cluster is also devoid of the heavy chemical elements thought necessary to evolve a planet.8 At least 30 separate planets each orbit a pair of suns whose constantly changing positions would disrupt any slow evolution of a planet.9 One planet has been repeatedly observed eclipsing each of the eccentric binary stars it orbits.
Big bang advocates and physicists have struggled to explain the origin of the heavier chemical elements (carbon, oxygen, iron, lead etc.).
b. Have many of those stars quickly4 pass through their complete life cycles then finally explode as supernovas to produce the heavier chemical elements.
[Response: Observations117 and computer simulations118 do not support this idea that supernovas produced all the heavy chemical elements.
That debris could then have formed second - generation stars containing these heavier chemical elements — all within 0.8 billion years.
«Models of galaxy evolution will need to be able to explain how a galaxy could form the stars needed to produce the observed amounts of dust and heavier chemical elements in such a comparatively short time,» Venemans said.