Observation of a Line Feature in the X-ray Spectrum of Cygnus X-3
نویسندگان
چکیده
منابع مشابه
Broad Band X-ray Spectrum of Cygnus X-1
We present the hard X-ray (20 − 100 keV) observations of Cygnus X-1 obtained using a large area balloon-borne Xenon filled Multi-anode Proportional Counter (XMPC) telescope. The observations were carried out during the γ 2 state of the source and we obtain a power law photon index of 1.62±0.07. To constrain the spectral shape of the source, we have analyzed the archival EXOSAT ME argon and GSPC...
متن کاملStudy the X - ray Dust Scattering Halos with Chandra Observations of Cygnus X - 3 and Cygnus X - 1
We improve the method proposed by Yao et al (2003) to resolve the X-ray dust scattering halos of point sources. Using this method we re-analyze the Cygnus X-1 data observed with Chandra (ObsID 1511) and derive the halo radial profile in different energy bands and the fractional halo intensity (FHI) as I(E) = 0.402×E keV. We also apply the method to the Cygnus X-3 data (Chandra ObsID 425) and de...
متن کاملRossi X-ray Timing Explorer Observation of Cygnus X-1 in Its High State
We present the results from the Rossi X-Ray Timing Explorer observations of Cygnus X-1 in its high state. In the energy range of 2–200 keV, the observed X-ray spectrum can be described by a model consisting of a soft blackbody component and a broken power law with a high-energy cutoff. The low-energy spectrum (below 111 keV) varies significantly from observation to observation while the high-en...
متن کاملOrigin of the “ Disk - Line ” Feature in the X - Ray Energy Spectrum of a
We have studied the origin of the broad and skewed feature at 4.5–7.5 keV in the energy spectra of NGC 4151 using the ASCA and RXTE data. The feature consists of a narrow peak at 6.4 keV and a broad wing extended between 4.5–7.5 keV. An analysis of the long-term variations revealed that the feature became variable only on a time scale longer than 1.5× 10 s. Through a comparison with the continu...
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: 1975
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/173.1.9p