منابع مشابه
Centaurus X - 3 — A Source of High Energy Gamma Rays
Centaurus X-3 is a well-studied high-mass accreting X-ray binary and a variable source of high energy gamma rays with energies from 100 MeV to 1 TeV. Previous results have suggested that the origin of the gamma rays is not the immediate vicinity of the neutron star but is sited in the accretion disc, perhaps in an accretion wake. The Durham Mark 6 gamma ray telescope has been used to measure th...
متن کاملCangaroo-iii Search for Gamma Rays from Centaurus a and the Ω Centauri Region
We have observed the giant radio galaxy Centaurus A and the globular cluster ω Centauri in the TeV energy region using the CANGAROO-III stereoscopic system. The system has been in operation since 2004 with an array of four Imaging Atmospheric Cherenkov Telescopes (IACT) with ∼100-m spacings. The observations were carried out in March and April 2004. In total, approximately 10 hours data were ob...
متن کاملVery high energy gamma-rays from Centaurus X-3: indications and implications
We present the results of a detailed timing analysis of observations of Cen X-3 taken by the University of Durham Mark-6 imaging atmospheric Cherenkov telescope in 1997-1999. The presence of a TeV γ-ray signal at the overall≥ 4.5σ significance level in the ‘fully cut’ image selected data, as reported earlier, is confirmed. A search for possible modulations of γ-rays with the pulsar spin period ...
متن کاملDiscovery of Vhe Γ-rays from Centaurus A
M. RAUE, J.-P. LENAIN, F. A. AHARONIAN, Y. BECHERINI, C. BOISSON, A.-C. CLAPSON, L. COSTAMANTE, L. GÉRARD, C. MEDINA, M. DE NAUROIS, M. PUNCH, F. RIEGER, H. SOL, L. STAWARZ, A. ZECH, for the H.E.S.S. COLLABORATION Max-Planck-Institut fuer Kernphysik, Heidelberg, Germany, Astroparticule et Cosmologie (APC), CNRS, Université Paris 7 Denis Diderot, France, LUTH, Observatoire de Paris, CNRS, Univer...
متن کاملGamma-Rays from Positron Annihilation
SPI on INTEGRAL has provided spectra and a map of the sky in the emission from annihilations of positrons in the interstellar medium of our Galaxy. From high-resolution spectra we learned that a warm, partially-ionized medium is the site where the observed gamma-rays originate. The gamma-ray emission map shows a major puzzle for broader astrophysics topics, as it is dominated by a bright and ex...
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: Journal of Cosmology and Astroparticle Physics
سال: 2008
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2008/06/022