Zobrazeno 1 - 10
of 234
pro vyhledávání: '"Mikhalev, V."'
Autor:
Chauvin, M., Florén, H. -G., Friis, M., Jackson, M., Kamae, T., Kataoka, J., Kawano, T., Kiss, M., Mikhalev, V., Mizuno, T., Ohashi, N., Stana, T., Tajima, H., Takahashi, H., Uchida, N., Pearce, M.
Publikováno v:
Nature Astronomy volume 2, pages 652-655 (2018)
Black-hole binary (BHB) systems comprise a stellar-mass black hole and a closely orbiting companion star. Matter is transferred from the companion to the black hole, forming an accretion disk, corona and jet structures. The resulting release of gravi
Externí odkaz:
http://arxiv.org/abs/1812.09907
Autor:
Pearce, M., Eliasson, L., Iyer, N. Kumar, Kiss, M., Kushwah, R., Larsson, J., Lundman, C., Mikhalev, V., Ryde, F., Stana, T. -A., Takahashi, H., Xie, F.
Gamma-ray bursts (GRBs) are exceptionally bright electromagnetic events occurring daily on the sky. The prompt emission is dominated by X-/$\gamma$-rays. Since their discovery over 50 years ago, GRBs are primarily studied through spectral and tempora
Externí odkaz:
http://arxiv.org/abs/1808.05384
Publikováno v:
Galaxies 2018, 6(1), 33
The PoGO mission, including the PoGOLite Pathfinder and PoGO+, aims to provide polarimetric measurements of the Crab system and Cygnus X-1 in the hard X-ray band. Measurements are conducted from a stabilized balloon-borne platform, launched on a 1 mi
Externí odkaz:
http://arxiv.org/abs/1803.02106
Autor:
Chauvin, M., Florén, H. -G., Friis, M., Jackson, M., Kamae, T., Kataoka, J., Kawano, T., Kiss, M., Mikhalev, V., Mizuno, T., Tajima, H., Takahashi, H., Uchida, N., Pearce, M.
The linear polarisation fraction and angle of the hard X-ray emission from the Crab provide unique insight into high energy radiation mechanisms, complementing the usual imaging, timing and spectroscopic approaches. Results have recently been present
Externí odkaz:
http://arxiv.org/abs/1802.07775
Autor:
Chauvin, M., Florén, H. -G., Friis, M., Jackson, M., Kamae, T., Kataoka, J., Kawano, T., Kiss, M., Mikhalev, V., Mizuno, T., Ohashi, N., Stana, T., Tajima, H., Takahashi, H., Uchida, N., Pearce, M.
Strong magnetic fields, synchrotron emission, and Compton scattering are omnipresent in compact celestial X-ray sources. Emissions in the X-ray energy band are consequently expected to be linearly polarized. X-ray polarimetry provides a unique diagno
Externí odkaz:
http://arxiv.org/abs/1706.09203
Autor:
Chauvin, M., Friis, M., Jackson, M., Kawano, T., Kiss, M., Mikhalev, V., Ohashi, N., Stana, T., Takahashi, H., Pearce, M.
Polarimetric observations of celestial sources in the hard X-ray band stand to provide new information on emission mechanisms and source geometries. PoGO+ is a Compton scattering polarimeter (20-150 keV) optimised for the observation of the Crab (pul
Externí odkaz:
http://arxiv.org/abs/1703.07627
Autor:
Chauvin, M., Florén, H. -G., Jackson, M., Kamae, T., Kawano, T., Kiss, M., Kole, M., Mikhalev, V., Moretti, E., Olofsson, G., Rydström, S., Takahashi, H., Iyudin, A., Arimoto, M., Fukazawa, Y., Kataoka, J., Kawai, N., Mizuno, T., Ryde, F., Tajima, H., Takahashi, T., Pearce, M.
We have measured the linear polarisation of hard X-ray emission from the Crab in a previously unexplored energy interval, 20-120 keV. The introduction of two new observational parameters, the polarisation fraction and angle stands to disentangle geom
Externí odkaz:
http://arxiv.org/abs/1511.02735
Autor:
Chauvin, M., Florén, H. -G., Jackson, M., Kamae, T., Kawano, T., Kiss, M., Kole, M., Mikhalev, V., Moretti, E., Olofsson, G., Rydström, S., Takahashi, H., Lind, J., Strömberg, J. -E., Welin, O., Iyudin, A., Shifrin, D., Pearce, M.
In the 50 years since the advent of X-ray astronomy there have been many scientific advances due to the development of new experimental techniques for detecting and characterising X-rays. Observations of X-ray polarisation have, however, not undergon
Externí odkaz:
http://arxiv.org/abs/1508.03345
Autor:
Chauvin, M., Jackson, M., Kawano, T., Kiss, M., Kole, M., Mikhalev, V., Moretti, E., Takahashi, H., Pearce, M.
Polarimetric studies of astrophysical sources can make important contributions to resolve the geometry of the emitting region and determine the photon emission mechanism. PoGOLite is a balloon-borne polarimeter operating in the hard X-ray band (25-24
Externí odkaz:
http://arxiv.org/abs/1505.08093
Autor:
Pearce, M., Eliasson, L., Kumar Iyer, N., Kiss, M., Kushwah, R., Larsson, J., Lundman, C., Mikhalev, V., Ryde, F., Stana, T.-A., Takahashi, H., Xie, F.
Publikováno v:
In Astroparticle Physics January 2019 104:54-63