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The Fermi Gamma-Ray Space Telescope Discovers the Pulsar in the Young Galactic Supernova Remnant CTA 1
Stockholm University, Faculty of Science, Department of Physics. Kosmologi, Partikelastrofysik och Strängteori.
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, Department of Physics. Kosmlogi, Parikelastrofysik och Strängteori.
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, Department of Physics. Kosmologi, Partikelastrofysik, Strängteori.
2008 (English)In: Science, Vol. 21Article in journal (Refereed) Published
Abstract [en]

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 104 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.

Place, publisher, year, edition, pages
2008. Vol. 21
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:su:diva-15089DOI: doi:DOI: 10.1126/science.1165572ISI: 000261033400033OAI: oai:DiVA.org:su-15089DiVA: diva2:181609
Available from: 2008-11-21 Created: 2008-11-21 Last updated: 2011-01-10Bibliographically approved

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