منابع مشابه
Bepposax/pds Observation of Vela X–1
Vela X–1 has been observed by the Italian/Dutch X–ray satellite BeppoSAX during its Science Verification Phase. During the ∼ 50 ksec observation (orbital phases 0.27–0.34) two different intensity state are present, situation very common in this source. We report results from the pulse phase averaged and pulse phase resolved spectroscopy from the high-energy instrument PDS aboard BeppoSAX.
متن کاملVela X - 1 as seen by RXTE
We present results from four observations of the ac-creting X-ray pulsar Vela X-1 with the Rossi X-ray Timing Explorer (RXTE) in 1996 February. The light curves show strong pulse to pulse variations, while the average pulse profiles are quite stable, similar to previous results. Below 5 keV the pulse profiles display a complex , 5-peaked structure with a transition to a simple, double peak abov...
متن کاملEscape from Vela X
Whilst the Vela pulsar and its associated nebula are often considered as the archetype of a system powered by a ∼10 year old isolated neutron star, many features of the spectral energy distribution of this pulsar wind nebula are both puzzling and unusual. Here we develop a model that for the first time relates the main structures in the system, the extended radio nebula (ERN) and the Xray cocoo...
متن کاملVariable X-ray Absorption in High-mass X-ray Binaries Cygnus X-1 and Vela X-1 Abstract Variable X-ray Absorption in High-mass X-ray Binaries Cygnus X-1 and Vela X-1
Variable X-ray Absorption in High-Mass X-ray Binaries Cygnus X-1 and Vela X-1
متن کاملThe Ionized Stellar Wind in Vela X-1 during Eclipse
We present a first analysis of a high resolution X-ray spectrum of the ionized stellar wind of Vela X-1 during eclipse. The data were obtained with the High Energy Transmission Grating Spectrometer onboard the Chandra X-ray Observatory. The spectrum is resolved into emission lines with fluxes between 0.02 and 1.04×10−4 photons cm−2s−1. We identify lines from a variety of charge states, includin...
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: 1993
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/264.1.181