Multi-band variability of the TeV blazar PG 1553+113 with XMM-Newton
نویسندگان
چکیده
منابع مشابه
XMM - Newton observation of PG 0844 + 349
In a ∼ 20 ksec XMM-Newton observation the X-ray transient radio-quiet quasar PG 0844+349 was found in a historically high state compared to previous X-ray observations. The quasar showed a featureless spectrum with a strong soft excess over the extrapolation of a hard power law. Comptonization models or a broken power law with Γsoft ∼ 2.75, Γhard ∼ 2.25 and a break energy of Ebreak ∼ 1.35 keV r...
متن کاملXMM - Newton EPIC observations of 21 low - redshift PG quasars
We present an X-ray spectral analysis of 21 low redshift quasars observed with XMM-Newton EPIC. All the sources are Palomar Green quasars with redshifts between 0.05 and 0.4 and have low Galactic absorption along the line-of-sight. A large majority of quasars in the sample (19/21) exhibit a significant soft excess below ∼ 1–1.5 keV, whilst two objects (PG1114+445 and I Zw1) show a deficit of so...
متن کاملDiscovery of a relativistic Fe line in PG 1425+267 with XMM–Newton and study of its short–timescale variability
We report results from the XMM–Newton observation of the radio–loud quasar PG 1425+267 (z=0.366). The EPIC–pn data above 2 keV exhibit a double–peaked emission feature in the Fe K band. The higher energy peak is found at 6.4 keV and is consistent with being narrow, while the lower energy one is detected at 5.3 keV and is much broader than the detector resolution. We confirm the significance of ...
متن کاملINTEGRAL and XMM - Newton observations of a micro - blazar LSI + 61 ◦ 303
LSI +61 303 is one of the few X-ray binaries with Be star companion from which both radio and high-energy gamma-ray emission have been observed. We present XMM-Newton and INTEGRAL observations which reveal variability of the X-ray spectral index of the system. The X-ray spectrum is hard (photon index Γ ≃ 1.5) during the orbital phases of both high and low X-ray flux. However, the spectrum softe...
متن کاملspectroscopy with the XMM-Newton satellite
We report on an observation of the Anomalous X– ray Pulsar 1E 1048.1–5937 performed with the XMM-Newton satellite. The phase averaged spectrum of 1E 1048.1–5937 is well described by the sum of a power law with photon index ∼2.9 and a blackbody with temperature ∼0.6 keV, without evidence for significant absorption or emission lines. The above spectral parameters do not vary during the phases cor...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2021
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stab1743