Author(s): A. Abdo A., Ackermann M., B. Atwood W., Baldini L., Ballet J., Barbiellini G., G. Baring M., Bastieri D., Bogaert G., Bruel P., Cohen-Tanugi J., Dumora D., Farnier C., Giebels B., Grondin M.-H., Guillemot L., Guiriec Sylvain, Knodlseder J., Komin Nukri, Lemoine-Goumard M., Lonjou V., Lott B., Morselli A., Nuss E., Parent D., Pelassa V., Piron F., Reposeur T., A. Smith D., Starck J.-L.
(Article) Published:
Science, vol. 322 p.1218 (2008)
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DOI: 10.1126/science.1165572
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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 ms, a period derivative of 3.614 x 10-13 s s-1 . Its characteristic age of 104 years is comparable to that estimated for the SNR. It is conjectured that most unidentified Galactic gamma ray sources associated with star-forming regions and SNRs are such young pulsars.
Comments: 18 pages, 3 figures + supplemental material, published in Science Express, October 16, 2008, Contact authors: G. Kanbach, K. Wood, M. Ziegler