Neutron capture produces what kind of elements in a star

Neutron capture produces elements such as Titanium and palladium in a star.

Neutron capture is a reaction whereby the nucleus of an atom collides and joins with neutrons to create a heavy nucleus. During neutron capture is the point in time whereby the highest chemical elements happen.

The star gives off great amounts of neutrons and also energy. The nuclei is able to have a capture of the neutrons that are giving off the heavy elements like titanium.

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Neutron capture produces elements heavier than iron in a star.

When the big massive explosions occurred in huge and massive stars, they are super densed in the production of heavy elements, because the neutron stars came in contact of energy with the oxygen and other conditions are also responsible for it.

According to some scientists Supernova theory also plays a vital role in this formation of heavy elements.  The star burns helium to form heavier elements like carbon and oxygen until "iron and nickel" formation after the exhaustion of hydrogen in the star core's.  The energy is released upto the formation of "iron and nickel" which requires some input energy.

clearcutting reproduces a new even-aged stand by completely removing the mature stand.

clearcutting as a silvicultural treatment has several characteristics:

it causes a sudden environmental change

it removes the seed source from the regeneration area

the configuration of the clearcut may affect seed dispersal

it begins a new rotation

it will eliminate some pests that require forest cover

overall, it temporarily removes the forest cover, transforming the forest community and environment.

clearcutting followed by artificial (seeded or planted) regeneration has several advantages:

we can avoid delay in restocking the site

we can introduce a selected species, seed source, and genotype

we can control arrangement and spacing

we can achieve uniformity in the new stand

we can overcome the problems associated with securing sufficient natural regeneration.

the shelterwood method involves the removal of most of the mature stand at the end of the rotation, but a portion of the mature stand is left standing.   the shelterwood method serves three basic purposes:

to prepare the stand for production of abundant seed

to modify the environment in a way that promotes germination and survival of the selected species

to build up the amount and size of advance regeneration to ensure the prompt restocking of the new stand following overstory removal.

the shelterwood method involves a sequence of 3 cuttings:

preparatory cuttings: make the seed trees more vigorous and set the stage for regeneration. see our thinning page for more information.

establishment/seed cuttings: open up enough vacant growing space to allow establishment of the new regeneration.

removal cuttings: uncover the new crop to allow it to fill the growing space.

the residual trees in the shelterwood must:

be sturdy and windfirm

be able to survive exposure

flower and reproduce seed

be the best trees of the mature stand

keep in mind that the shelter trees must not occupy the entire site.   a void must be created in order to make room for the new regeneration. the amount of shelter to leave will depend on the following factors:

species characteristics (seeding and shelter requirements)

the number of cuttings in the cutting sequence (1, 2, or 3)

landowner objectives

the size of the area to be regenerated

the final removal harvest level required to be profitable

the shelter must be removed before it impedes the growth of the new stand or threatens its survival.