Editing Compact object (section)

== Formation ==
The usual endpoint of [[stellar evolution]] is the formation of a compact star.

All active stars will eventually come to a point in their evolution when the outward radiation pressure from the nuclear fusions in its interior can no longer resist the ever-present gravitational forces. When this happens, the star collapses under its own weight and undergoes the process of [[stellar death]]. For most stars, this will result in the formation of a very dense and compact stellar remnant, also known as a compact star.

Compact objects have no internal energy production, but will—with the exception of black holes—usually radiate for millions of years with excess heat left from the collapse itself.<ref>{{cite book |last1=Tauris |first1=T. M. |last2=J. van den Heuvel |first2=E. P. |title=Formation and Evolution of Compact Stellar X-ray Sources |url=https://archive.org/details/arxiv-astro-ph0303456 |arxiv=astro-ph/0303456|date=20 Mar 2003 |bibcode=2006csxs.book..623T }}</ref>

According to the most recent understanding, compact stars could also form during the [[Chronology of the universe#Hadron epoch|phase separations]] of the early Universe following the [[Big Bang]].<ref>{{cite journal
 | title=Primordial black holes
 | last=Khlopov | first=Maxim Yu.
 | journal=Research in Astronomy and Astrophysics
 | volume=10 | issue=6 | pages=495–528 | date=June 2010
 | arxiv=0801.0116 | bibcode=2010RAA....10..495K 
 | doi=10.1088/1674-4527/10/6/001
| s2cid=14466173 }}</ref> Primordial origins of known compact objects have not been determined with certainty.