التفاصيل البيبلوغرافية
| العنوان: |
X-ray studies of the gamma-ray pulsar J1826−1256 and its pulsar wind nebula with Chandra and XMM – Newton. |
| المؤلفون: |
Karpova, Anna V, Zyuzin, Dmitry A, Shibanov, Yuriy A |
| المصدر: |
Monthly Notices of the Royal Astronomical Society; Aug2019, Vol. 487 Issue 2, p1964-1972, 9p |
| مصطلحات موضوعية: |
PULSARS, GAMMA ray astronomy, SUPERNOVA remnants, NEBULAE, OPEN clusters of stars, X-rays |
| مستخلص: |
We have analysed archival XMM–Newton and Chandra observations of the γ -ray radio-quiet pulsar J1826−1256 and its pulsar wind nebula. The pulsar spectrum can be described by a power-law model with photon index Γ ≈ 1. We find that the nebular spectrum softens with increasing distance from the pulsar, implying synchrotron cooling. The empirical interstellar absorption–distance relation gives a distance of ≈3.5 kpc to J1826−1256. We also discuss the nebula geometry and the association between the pulsar, the very high energy source HESS J1826−130, the supernova remnant candidate G18.45−0.42 and the open star cluster Bica 3. [ABSTRACT FROM AUTHOR] |
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