Central compact object

A '''central compact object''' ('''CCO''') is an [[x-ray]] [[Point source|source]] found near the center of a young, nearby [[supernova remnant]] (SNR). Given the x-ray [[Radiative flux|flux]] and [[X-ray spectroscopy|spectra]] of these [[compact object]]s, the almost certain conclusion is that CCOs are remnant [[neutron star]]s associated with recent [[supernova]]e. Unlike most [[Pulsar|pulsars]], CCOs generally [[Radio-quiet neutron star|lack pulsed radio emission]] or variation in the observed x-rays due to such phenomena being either nonexistent or difficult to detect. The weaker [[Magnetic field|magnetic fields]] than most other detected neutron stars means that most of the detected x-rays are due to [[blackbody radiation]]. Confirmation that the CCO is associated with the past supernova can be done using the [[kinematics]] of the objects and matching them to the age and kinematics of the host SNR.{{Cite journal |last1=Mayer |first1=Martin G. F. |last2=Becker |first2=Werner |date=2021-07-01 |title=A kinematic study of central compact objects and their host supernova remnants |url=https://www.aanda.org/articles/aa/abs/2021/07/aa41119-21/aa41119-21.html |journal=Astronomy & Astrophysics |language=en |volume=651 |pages=A40 |doi=10.1051/0004-6361/202141119 |issn=0004-6361|doi-access=free |arxiv=2106.00700 |bibcode=2021A&A...651A..40M }}

A '''central compact object''' ('''CCO''') is an [[x-ray]] [[Point source|source]] found near the center of a young, nearby [[supernova remnant]] (SNR). Given the x-ray [[Radiative flux|flux]] and [[X-ray spectroscopy|spectra]] of these [[compact object]]s, the almost certain conclusion is that CCOs are remnant [[neutron star]]s associated with recent [[supernova]]e. Unlike most [[Pulsar|pulsars]], CCOs generally [[Radio-quiet neutron star|lack pulsed radio emission]] or variation in the observed x-rays due to such phenomena being either nonexistent or difficult to detect. The weaker [[Magnetic field|magnetic fields]] than most other detected neutron stars means that most of the detected x-rays are due to [[blackbody radiation]]. Confirmation that the CCO is associated with the past supernova can be done using the [[kinematics]] of the objects and matching them to the age and kinematics of the host SNR.{{Cite journal |last1=Mayer |first1=Martin G. F. |last2=Becker |first2=Werner |date=2021-07-01 |title=A kinematic study of central compact objects and their host supernova remnants |url=https://www.aanda.org/articles/aa/abs/2021/07/aa41119-21/aa41119-21.html |journal=Astronomy & Astrophysics |language=en |volume=651 |pages=A40 |doi=10.1051/0004-6361/202141119 |issn=0004-6361|doi-access=free |arxiv=2106.00700 |bibcode=2021A&A...651A..40M }}

The detection in 1980 of [[1E 161348-5055]] at the center of SNR [[RCW 103]] using the [[Einstein Observatory]]{{Cite journal |last1=Tuohy |first1=I. |last2=Garmire |first2=G. |date=1980-08-01 |title=Discovery of a compact X-ray source at the center of the SNR RCW 103. |url=https://ui.adsabs.harvard.edu/abs/1980ApJ...239L.107T |journal=The Astrophysical Journal |volume=239 |pages=L107–L110 |doi=10.1086/183303 |bibcode=1980ApJ...239L.107T |issn=0004-637X}} was once touted as the first CCO discovery, but is now classified as a slow-rotating [[magnetar]] due to magnetar outburst detection.{{Cite journal |last=De Luca |first=A |date=2017 |title=Central compact objects in supernova remnants |journal=Journal of Physics: Conference Series |volume=932|issue=1 |article-number=012006 |doi=10.1088/1742-6596/932/1/012006 |doi-access=free |arxiv=1711.07210 |bibcode=2017JPhCS.932a2006D }} Since that object's discovery, ten CCOs have been positively identified with a further two as candidates.{{Cite web |url=https://www.iasf-milano.inaf.it/~deluca/cco/main.htm |access-date=2023-12-12 |website=www.iasf-milano.inaf.it}}

The detection in 1980 of [[1E 161348-5055]] at the center of SNR [[RCW 103]] using the [[Einstein Observatory]]{{Cite journal |last1=Tuohy |first1=I. |last2=Garmire |first2=G. |date=1980-08-01 |title=Discovery of a compact X-ray source at the center of the SNR RCW 103. |url=https://ui.adsabs.harvard.edu/abs/1980ApJ...239L.107T |journal=The Astrophysical Journal |volume=239 |pages=L107–L110 |doi=10.1086/183303 |bibcode=1980ApJ...239L.107T |issn=0004-637X}} was once touted as the first CCO discovery, but is now classified as a slow-rotating [[magnetar]] due to magnetar outburst detection.{{Cite journal |last=De Luca |first=A |date=2017 |title=Central compact objects in supernova remnants |journal=Journal of Physics: Conference Series |volume=932|issue=1 |article-number=012006 |doi=10.1088/1742-6596/932/1/012006 |doi-access=free |arxiv=1711.07210 |bibcode=2017JPhCS.932a2006D }} Since that object's discovery, ten CCOs have been positively identified with a further two as candidates.{{Cite web |url=https://www.iasf-milano.inaf.it/~deluca/cco/main.htm |access-date=2023-12-12 |website=www.iasf-milano.inaf.it|title=[untitled]}}

== List of CCOs ==

== List of CCOs ==