Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Osone, S."'
Autor:
Osone, S.
The jet may compress an interstellar medium and soft X-ray may be absorbed outside the jet by a compressed interstellar medium and thermal emission heated by a shock is expected inside the jet. I analyze X-ray image of surroundings of the jet of M87
Externí odkaz:
http://arxiv.org/abs/2411.08525
Autor:
Osone, S.
With new calibration data, thermal emission from the jet of radio galaxy M87 is studied with about 700 ks archival data with Chandra. For nucleus, HST-1, knot D, X-ray energy spectra is well fitted with a power law. However, For knot A, a power law m
Externí odkaz:
http://arxiv.org/abs/2307.12039
Autor:
Osone, S.
Both a thermal component and a non thermal component as an interaction between the jet and an interstellar medium are studied with an exposure time of 800 ks of Chandra. It is confirmed that an X-ray energy spectra for the nucleus, the knot HST-1 and
Externí odkaz:
http://arxiv.org/abs/1706.00683
Autor:
Osone, S.
This study shows the existence of an additional thermal component found in the synchrotron emission from the M87 jet. Using Chandra, thermal bremsstrahlung is detected in four out of six fields. X-rays for the nucleus and HST-1 are well described wit
Externí odkaz:
http://arxiv.org/abs/1408.3975
Autor:
Osone, S.
We design a GeV gamma ray detector based on an electron-positron pair measurement by using the BESS-polar magnet and study it with the GEANT4 simulation code. We consider an additional counter to select an electron-positron pair for which the energy
Externí odkaz:
http://arxiv.org/abs/1010.1088
Autor:
Osone, S.
Publikováno v:
Astropart.Phys. 26 (2006) 209-218
We confirm a 23 day periodicity during a large flare in 1997 for X-ray data of X-ray satellite RXTE all sky monitor(ASM), 2 TeV gamma ray data from Utah Seven Telescope and HEGRA, with a Fourier analysis. We found the three results to be the same wit
Externí odkaz:
http://arxiv.org/abs/astro-ph/0506328
Autor:
Osone, S.
We discuss feasibility of Gamma ray burst (GRB) with TeV gamma ray all sky monitor and discuss necessity of TeV gamma ray cherenkov all sky monitor.
Comment: 5 pages, 2 figures, ICRC2003 Proceeding paper
Comment: 5 pages, 2 figures, ICRC2003 Proceeding paper
Externí odkaz:
http://arxiv.org/abs/astro-ph/0305242
Autor:
Osone, S.
A time dependence of a metal abundance of supernova remnant (SNR) have been found by Hughes et al. (1998). We interpret this time dependence is due to Fermi acceleration. If this interpretation is true, there is a metallicity dependence of this time
Externí odkaz:
http://arxiv.org/abs/astro-ph/0305238
Autor:
Osone, S.
We present a concept of a new gamma ray detector in order to observe undetected TeV gamma ray background. We measure a track of an electron-positron pair made by a pair creation in a magnet. By using Si as a tracker in a magnetic field 3 T, an energy
Externí odkaz:
http://arxiv.org/abs/astro-ph/0211642
Autor:
Osone, S., Teshima, M.
Long periodicity for Mkn501 during a large flare in 1997 have been reported by TA, HEGRA group. Here, we establish this periodicity with archival data of RXTE All Sky Monitor(ASM), Telescope Array(TA) and HEGRA with a chance probability less than $10
Externí odkaz:
http://arxiv.org/abs/astro-ph/0211640