Exploring the Gamma-Cygni Pulsar LAT PSR J2021+4026

Details Exploring the Gamma-Cygni Pulsar LAT PSR J2021+4026 Exploring the Gamma-Cygni Pulsar LAT PSR J2021+4026

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.1606s&link_type=abstract

American Astronomical Society, HEAD meeting #11, #16.06; Bulletin of the American Astronomical Society, Vol. 41, p.679

Astronomy and Astrophysics

Astronomy

1

Scientific paper

One and a half year after its start Fermi has detected pulsed gamma rays from at least 46 pulsars. PSR J2021+4026 is one of them and is the fifth brightest sources in the gamma-ray sky. The pulsar has a period of 265 ms. Its spin-down age is tau=P/2P_dot 7.7 × 104 years, making it a young and powerful pulsar ideally suited to explore the pulsar's high energy emission properties in multi-wavelength studies. PSR J2021+4026 is located inside the supernova remnant G78.2+2.1. NVSS data revealed diffuse radio emission surrounding the pulsar. The pulsar's X-ray counterpart was identified using Chandra. Intriguingly, analyzing XMM-Newton data on it revealed some evidence for flux variability, albeit at low significance. Optical counterpart studies resulted in an upper limit of V 25 mag.

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