Monday, March 18, 2019
Beta Pictoris: Planets? Life? Or What? :: essays research papers fc
BETA PICTORIS PLANETS? LIFE? OR WHAT?JARAASTRONOMY 102 SEC 013The ultimate question is Is there a opening move that life might exist on aplanet in the of import Pictoris system? First, bingle must ask, Are there planets inthe Beta Pictoris system?. However, that question would be impossible to answerif one did not answer the most basic questions first Where do planets sleep withfrom? and do the key elements and situations, needed to form planets, exist inthe Beta Pictoris system?.To understand where planets come from, one has to first look at where theplanets in our solar system came from. Does or did our star, the sun, have acircumstellar criminal record around it? the answer is believed to be yes.Scientists believe that a newly form star is immediately surrounded by arelatively intricate cloud of gas and dust. In 1965, A. Poveda stated, That newstars argon likely to be obscured by this envelope of gas and dust (1). In 1967,Davidson and Harwit agreed with Poveda and and so marchesed this occurrence, the cocoon nebula (1). Other authors have referred to this occurrence as, a placental nebula (1), noting that it sustains the appendage of planetary bodies.For a long time, even before there was the term cocoon nebula, planetaryscientists knew that a cocoon nebula had surrounded the sun, long ago, in orderfor our solar system to form and take on their currents motions (1).In 1755, a German, named Immanuel Kant, reasoned that gravity wouldmake circumsolar cloud contract and that whirling would flatten it (1)." Thus,the cloud would assume the general shape of a rotating disk, explaining the featurethat the planets, in our solar system, revolve in a disk-shaped distribution.This idea, about the disk-shaped nebula that was form around the earlysun, came to be known as the nebula hypothesis (1). Then, in 1796, a Frenchmathematician named Laplace, proposed that the rotating disk continued to cooland contract, forming planetary bodies (1). Also, when stud y theevolution of stars, it was proposed that a star forms as a central compressionin an extended nebula... The outer part remains behind as the cocoon nebula (1). During the same study it was also indicated that under various conditions much(prenominal) as rotation, turbulence, etc. the nucleus of the forming star may divideinto dickens or more bodies orbiting each other (1). This may be the rendering asto why more than half of all star systems are binary or multiple, rather thansingles stars, like ours, the sun.This same atomization may also form bodies too small to become stars.
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