Zobrazeno 1 - 10
of 87 194
pro vyhledávání: '"hard x-ray"'
We report on the results of X-ray observations (XMM-Newton, INTEGRAL and Swift) of two hard X-ray sources, IGR J17503-2636 and IGR J17507-2647, whose nature is not fully elucidated in the literature. Three XMM-Newton observations covered the field of
Externí odkaz:
http://arxiv.org/abs/2411.17315
Layered Multiple Scattering Approach to Hard X-ray Photoelectron Diffraction: Theory and Application
Autor:
Vo, Trung-Phuc, Tkach, Olena, Tricot, Sylvain, Sebilleau, Didier, Braun, Jurgen, Pulkkinen, Aki, Winkelmann, Aimo, Fedchenko, Olena, Lytvynenko, Yaryna, Vasilyev, Dmitry, Elmers, Hans-Joachim, Schonhense, Gerd, Minar, Jan
Photoelectron diffraction (PED) is a powerful and essential experimental technique for resolving the structure of surfaces with sub-angstrom resolution. In the high energy regime, researchers in angle-resolved photoemission spectroscopy (ARPES) obser
Externí odkaz:
http://arxiv.org/abs/2411.09669
Autor:
Tatischeff, Vincent, Laurent, Philippe
Space-based astronomy of hard X-rays and gamma rays covers more than seven orders of magnitude in photon energy, from 10 keV to several hundred GeV. Detecting cosmic photons in this energy range is a challenge, due to the relatively low probability o
Externí odkaz:
http://arxiv.org/abs/2411.11987
Autor:
Capone, F.1,2 (AUTHOR), Muntada, O.3 (AUTHOR), Ramírez, J. C.4 (AUTHOR), Esplandiu, M. J.4 (AUTHOR), Dedryvère, R.5 (AUTHOR), Grimaud, A.6 (AUTHOR), Lassalle-Kaiser, B.1 (AUTHOR), Céolin, D.1 (AUTHOR), Pérez-Murano, F.3 (AUTHOR), Rueff, J.-P.1,7 (AUTHOR) jean-pascal.rueff@synchrotron-soleil.fr, Fraxedas, Jordi4 (AUTHOR) jordi.fraxedas@icn2.cat
Publikováno v:
Journal of Synchrotron Radiation. Nov2024, Vol. 31 Issue 6, p1505-1513. 9p.
Autor:
Kosiba, M., Massaro, F., Paggi, A., Peña-Herazo, H. A., Masetti, N., Chavushyan, V., Bottacini, E., Werner, N.
Publikováno v:
A&A 692, A147 (2024)
It is currently established that the sources contributing to the cosmic X-ray background (CXB) emission are mainly nearby active galactic nuclei (AGN), in particular those that are obscured. Thus, it is important to fully identify the hard X-ray sky
Externí odkaz:
http://arxiv.org/abs/2408.05303
In this work we present results of a study of the Galactic hard X-ray and soft gamma-ray background emission performed with the IBIS telescope aboard INTEGRAL observatory using data obtained over more than 20 years of operations. The study of Galacti
Externí odkaz:
http://arxiv.org/abs/2409.20058
Publikováno v:
2024ApJ...970...77L
We report the simultaneous observations of quasi-periodic pulsations (QPPs) in wavelengths of hard X-ray (HXR), microwave, Ly{\alpha}, and ultraviolet (UV) emissions during the impulsive phase of an X6.4 flare on 2024 February 22 (SOL2024-02-22T22:08
Externí odkaz:
http://arxiv.org/abs/2408.05463
Autor:
Shi, Guanglu, Feng, Li, Chen, Jun, Ying, Beili, Li, Shuting, Li, Qiao, Li, Hui, Li, Ying, Ji, Kaifan, Huang, Yu, Gan, Weiqun, team, the LST
The asymmetry in hard X-ray (HXR) emission at the footpoints (FPs) of flare loops is a ubiquitous feature closely associated with nonthermal electron transport. We analyze the asymmetric HXR radiation at two flare ribbons which is thermal-dominated d
Externí odkaz:
http://arxiv.org/abs/2407.13099
Autor:
Serafinelli, Roberto, De Rosa, Alessandra, Tortosa, Alessia, Stella, Luigi, Vagnetti, Fausto, Bianchi, Stefano, Ricci, Claudio, Kammoun, Elias, Petrucci, Pierre-Olivier, Middei, Riccardo, Lanzuisi, Giorgio, Marinucci, Andrea, Ursini, Francesco, Matt, Giorgio
Publikováno v:
A&A 690, A145 (2024)
Active galactic nuclei (AGN) are extremely variable in the X-ray band down to very short timescales. However, the driver behind the X-ray variability is still poorly understood. Previous results suggest that the hot corona responsible for the primary
Externí odkaz:
http://arxiv.org/abs/2407.06769
Autor:
Roesner, Benedikt1 (AUTHOR) benedikt.roesner@psi.ch, Raabe, Joerg1 (AUTHOR), Willmott, Philip R.1 (AUTHOR), Flechsig, Uwe1 (AUTHOR)
Publikováno v:
Journal of Synchrotron Radiation. Jul2024, Vol. 31 Issue 4, p771-778. 8p.