Results 51 to 60 of about 1,020,980 (231)
, 2016 X-ray pulsars shine thanks to the conversion of the gravitational energy of accreted material to X-ray radiation. The accretion rate is modulated by geometrical and hydrodynamical effects in the stellar wind of the pulsar companions and/or by instabilities in accretion discs.
Roland Walter, Carlo Ferrigno
openaire +2 more sources
X-ray reflection in a sample of X-ray bright ultraluminous X-ray sources [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 We apply a reflection-based model to the best available XMM-Newton spectra of X-ray bright UltraLuminous X-ray (ULX) sources (NGC 1313 X-1, NGC 1313 X-2, M 81 X-6, Holmberg IX X-1, NGC 5408 X-1 and Holmberg II X-1). A spectral drop is apparent in the data of all the sources at energies 6-7 keV.
Andrew C. Fabian, M. D. Caballero-Garcia
openaire +4 more sources
X-ray source uses interchangeable target anodes to vary X-ray wavelength [PDF]
, 1967 Compact laboratory X ray tube generates X rays of various wavelengths by using interchangeable target anodes.
Shields, R. A.
core +1 more source
Crystallization of the regulatory and effector domains of the key sporulation response regulator Spo0A [PDF]
, 1999 The key response-regulator gene of sporulation, spo0A, has been cloned from Bacillus stearothermophilus and the encoded protein purified. The DNA-binding and phospho-acceptor domains of Spo0A have been prepared by tryptic digestion of the intact protein ...
Barak, I +7 more
core +1 more source
X-rays from Radio-Galaxies: BeppoSAX Observations [PDF]
, 2000 We briefly review BeppoSAX observations of X-ray bright radio-galaxies. Their X-ray spectra are quite varied, and perhaps surprisingly, any similarity between radio-loud AGN and Seyfert galaxies is the exception rather than the rule.
C.M Urry +14 more
core +3 more sources
Solution of a uniqueness problem in the discrete tomography of algebraic Delone sets [PDF]
, 2011 We consider algebraic Delone sets $\varLambda$ in the Euclidean plane and address the problem of distinguishing convex subsets of $\varLambda$ by X-rays in prescribed $\varLambda$-directions, i.e., directions parallel to nonzero interpoint vectors of ...
Huck, Christian, Spiess, Michael
core +1 more source
Dramatic increase in oxidative stress in carbon-irradiated normal human skin fibroblasts. [PDF]
PLoS ONE, 2013 Skin complications were recently reported after carbon-ion (C-ion) radiation therapy. Oxidative stress is considered an important pathway in the appearance of late skin reactions.
Carine Laurent +5 more
doaj +1 more source
The Journal of Poultry Science, 2006 It is necessary to deplete the endogenous primordial germ cells (PGCs) from recipient embryos when germline chimaeric chickens are produced by the transfer of PGCs. In this study, effects of soft X-ray irradiation on the restriction of PGC proliferation
Hiroyuki Nakamichi +6 more
doaj +1 more source
Effect of Time-varying X-Ray Emission from Stellar Flares on the Ionization of Protoplanetary Disks
The Astrophysical JournalX-rays have significant impacts on cold, weakly ionized protoplanetary disks by increasing the ionization rate and driving chemical reactions. Stellar flares are explosions that emit intense X-rays and are the unique source of hard X-rays with an energy ...
Haruka Washinoue +2 more
doaj +1 more source
Electronic catalogue of muonic X-rays
EPJ Web of Conferences, 2018 μX-ray spectra for Z=9-90 were measured with HPGe detectors and muonic beams of PSI (Villigen, Switzerland) [1]. The results are presented as electronic atlas composed of graphic plots. The atlas is available at JINR site [2].
Zinatulina Daniya +7 more
doaj +1 more source