X-ray emission induced by low energy electrons
نویسندگان
چکیده
منابع مشابه
The Origin of X-ray Emission from a Galactic Center Molecular Cloud: Low Energy Cosmic Ray Electrons
The Galactic center region near l≈ 0.2 hosts a mixture of nonthermal linear filaments and thermal radio continuum features associated with the radio Arc. Chandra observations of this region reveal an X-ray filament and diffuse emission with an extent of roughly 60′′ × 2′′ and 5′ × 3′, respectively. The X-ray filament lies at the edge of the nonthermal radio filaments and a dense molecular shell...
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A young neutron star with large spin-down power is expected to be closely surrounded by an e pair plasma maintained by the conversion of γ-rays associated with the star’s polar-cap and/or outer-gap accelerators. Cyclotron-resonance scattering by the e and e within several radii of such neutron stars prevents direct observations of thermal X-rays from the stellar surface. Estimates are presented...
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Low energy X-ray emission (0.1-10 keV) from all six millisecond pulsars (MSPs) for which such emission has been reported support a proposed pulsar magnetic field evolution previously compared only to radiopulse data: old, very strongly spun-up neutron stars become mainly orthogonal rotators (magnetic dipole moment perpendicular to stellar spin) or aligned rotators. The neutron star properties w...
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Black particles, collected by filtration (1.2~pm pore size) from the anoxic waters of a soft-water lake, were examined by a scanning proton microprobe which permitted quantitative elemental analysis by proton-induced X-ray emission (PIXE) and Rutherford backscattering (RBS). There was a uniform distribution of sulfur across the filter, but Fe, and to a lesser extent, Mn, was localized in -5-pm-...
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We report on Rossi X-ray Timing Explorer observations of four type I X-ray bursters; namely 1E1724– 3045, GS1826–238, SLX1735–269 and KS1731-260. The first three were in a low state, with 1-200 keV Xray luminosities in the range ∼ 0.05−0.1 LEdd (LEdd: Eddington luminosity for a neutron star = 2.5×10 38 ergs s), whereas KS1731-260 was in a high state with a luminosity ∼ 0.35 LEdd. The low state ...
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ژورنال
عنوان ژورنال: Microscopy and Microanalysis
سال: 2002
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s1431927602101000