Energy structure of the accretion disc corona in X 1822-371
نویسندگان
چکیده
منابع مشابه
The Flared Disc Project : RXTE and ASCA observations of X 1822 − 371
We present archival Rossi X-ray Timing Explorer (RXTE) and simultaneous Advanced Satellite for Cosmology and Astrophysics (ASCA) data of the eclipsing low mass Xray binary (LMXB) X 1822−371. Our spectral analysis shows that a variety of simple models can fit the spectra relatively well. Of these models, we explore two in detail through phase resolved fits. These two models represent the case of...
متن کاملHigh-resolution X-ray Spectroscopy of the Accretion Disk Corona Source 4u 1822−37
We present a preliminary analysis of the X-ray spectrum of the accretion disk corona source, 4U 1822−37, obtained with the High Energy Transmission Grating Spectrometer onboard the Chandra X-ray Observatory. We detect discrete emission lines from photoionized iron, silicon, magnesium, neon, and oxygen, as well as a bright iron fluorescence line. Phase-resolved spectroscopy suggests that the rec...
متن کاملDiscovery of an X–ray Pulsar in the Low–mass X-ray Binary 2a 1822–371
We report the discovery of 0.59 s X–ray pulsations from the low–mass X–ray binary, 5.57 hr dipping and eclipsing ADC source 2A 1822–371. Pulse arrival time analysis indicates a circular orbit with e <0.03 (95% confidence) and an asini for the neutron star of 1.006(5) lightseconds, implying a mass function of (2.03± 0.03)× 10M⊙. The barycentric pulse period was 0.59325(2) s in 1996.270 and 0.593...
متن کاملBroad - band BeppoSAX observation of the low - mass X - ray binary X 1822 - 371
Results of a 1997 September 9–10 BeppoSAX observation of the 5.57 hr low-mass X-ray binary (LMXRB) X 1822371 are presented. The 0.3–40 keV spectrum is unusually complex and cannot be fit by any of the standard models applied to other LMXRB. At least two components are required. One component has a shape consistent with that expected from the Comptonization of an input soft (Wien) spectrum while...
متن کاملthe role of thematic structure in comprehending spoken language
in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...
15 صفحه اولذخیره 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: 1992
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/258.3.457