hard X-ray source
Observation of a quasiperiodic pulsation in hard X ray, radio and extreme ultraviolet wavelengths
... ∼3–5 min, and suggested that their triggering could be caused by an MHD wave. A fast-mode MHD wave model proposed by Nakariakov et al. (2006) links triggering of QPP with a transverse oscillation of a coronal loop ...
17
1RXS J173021 5 055933 : a cataclysmic variable with a fast spinning magnetic white dwarf
... flaring source at all wavelengths and it is quite atypical in its X-ray emission, being a soft X-ray source with a very low accretion rate (see Itoh et ...flaring source ...
12
Hard x ray observations of the extragalactic sky: the High Energy Focusing Telescope and the Serendipitous Extragalactic X ray Source Identification survey
... of hard x-ray sources will still be too low for deep field surveys to produce meaningful ...the hard x-ray ...the hard x-rays was completed more than 20 years ago ...
109
Chaudhary, Pooja (2011): Properties of the integrated spectrum of active galactic nuclei. Dissertation, LMU München: Fakultät für Physik
... on X-ray data by a factor of 2 by including MOS1 and MOS2 data from ...soft X-ray properties of (at least) bright low redshift AGNs in our sample as a function of the source physical ...
133
Prospects of the Hard X Ray Instrument POLAR to Measure Polarization of Solar Flares
... keV low energy threshold for polarization detection requires the effective instrumental threshold to be as low as about 5 keV and puts strong constraints for the scintillating photons collection quality. The azimuthal ...
7
X-ray spectra of the RIXOS source sample
... For the AGN we find an average energy index of 1:05 ^ 0:05; with no evidence for spectral evolution with redshift. Individual AGN are shown to have a range of properties, including soft X-ray excesses and ...
24
Multi wavelength spatially resolved analysis of quasi periodic pulsations in a solar flare
... and hard X-ray (Zaitsev & Stepanov 1982) ...Soft X-ray and EUV images indicate that there may be more than one loop in this ...a source of hard X-ray ...
8
Hard x-ray polarimetry with the Ramaty High Energy Solar Spectroscopic Imager (RHESSI)
... Hard X-ray emission from solar flares, like any other form of electromagnetic radiation, has four, and only four ...at hard X-ray energies is especially appealing in that the ...
13
Highlights from the COS-B mission
... the hard X-ray spectra with phase for the Crab ...various source regions simultaneously exist in the pulsars magnetospheres and that the physical processes generating the gamma rays in these ...
11
A hard X-ray polarimeter designed for transient astrophysical sources
... a hard X-ray Compton ...of hard X-rays in the 50-300 keV energy ...in X-rays that are emitted from solar flares and gamma-ray bursts ...
6
Unveiling the Structure of Active Galactic Nuclei with Hard X ray Spectroscopy
... soft X-ray end of the spectrum, where the NuSTAR sensitivity drops off, and to facilitate a comparison of the soft X-ray flux with the data available in the ...annular source-free ...
291
Flaring -ray emission from high redshift blazars
... (LAT) source catalogue (3FGL, [1]) there are 64 objects ( ∼ ...in hard X-rays by Swift-BAT [2], INTEGRAL-IBIS [3], and NuSTAR ...[4,5]. Hard X-ray observations seem more suitable ...
8
The X ray and extreme ultraviolet flux evolution of SS Cygni throughout outburst
... the hard X-ray band at JD 245 ...the hard X-ray flux at the beginning of an outburst has been previously suspected (Swank 1979; Ricketts et ...the hard X-ray ...
14
Self Consistent Calibration of Detectors and Sources for Hard and Soft X Ray Diagnostics
... Usually X-ray tubes and imaging detectors are not absolutely calibrated by the ...absolute X-ray radia- tion flux emitted from a source as function of energy is ...the ...
12
Dedicated polarimeter design for hard x-ray and soft gamma-ray astronomy
... Fig. 5 illustrates the nature of the GRAPE SM1 laboratory data. The first panel shows the polarization response to a partially polarized monoenergetic beam of ~288 keV photons (generated by scattering photons from 137 ...
13
Hard x ray photoelectron spectroscopy as a probe of the intrinsic electronic properties of CdO
... synchrotron source to provide extremely high photon fluxes, combined with recent advances in electron analyzers which enables more efficient photoelectron ...
7
Hard x-ray polarimeter for gamma-ray bursts and solar flares
... in hard X-ray and γ-ray polarimetry has been ...for hard X-ray and γ-ray emission involve beams of highly energetic particles in extremely strong magnetic ...many ...
13
Automated Prototype Detector pdf
... As discussed previously, the prototype system scans luggage at high and low x-ray energy settings. The energy level of the output photons, however, is not limited to the input energy, but is distributed ...
267
A Limit From the X-ray Background on the Contribution of Quasars to Reionization
... consumed by neutral hydrogen atoms and contribute to reion- ization. However, the background of harder X-rays would red- shift without absorption and would be observed as a present– day soft X–ray ...
10
A new luminous supersoft X ray source in NGC 300
... on source time) and orbit 195 (2001 January 1; 47 ks on source ...the source went from a “high state” to a “low state”, and that a ...this source will be given in ...
6