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The Fermi Gamma-Ray Space Telescope discovers the pulsar in the young galactic supernova remnant CTA 1 |
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| Authors: | Abdo A A Ackermann M Atwood W B Baldini L Ballet J Barbiellini G Baring M G Bastieri D Baughman B M Bechtol K Bellazzini R Berenji B Blandford R D Bloom E D Bogaert G Bonamente E Borgland A W Bregeon J Brez A Brigida M Bruel P Burnett T H Caliandro G A Cameron R A Caraveo P A Carlson P Casandjian J M Cecchi C Charles E Chekhtman A Cheung C C Chiang J Ciprini S Claus R Cohen-Tanugi J Cominsky L R Conrad J Cutini S Davis D S Dermer C D de Angelis A de Palma F Digel S W Dormody M do Couto E Silva E Drell P S Dubois R Dumora D Edmonds Y Farnier C Focke W B Fukazawa Y Funk S Fusco P Gargano F |
| Institution: | National Research Council Research Associate, National Academy of Sciences, Washington, DC 20001, USA. |
| Abstract: | Energetic young pulsars and expanding blast waves supernova remnants (SNRs)] are the most visible remains after massive stars, ending their lives, explode in core-collapse supernovae. The Fermi Gamma-Ray Space Telescope has unveiled a radio quiet pulsar located near the center of the compact synchrotron nebula inside the supernova remnant CTA 1. The pulsar, discovered through its gamma-ray pulsations, has a period of 316.86 milliseconds and a period derivative of 3.614 x 10(-13) seconds per second. Its characteristic age of 10(4) years is comparable to that estimated for the SNR. We speculate that most unidentified Galactic gamma-ray sources associated with star-forming regions and SNRs are such young pulsars. |
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