• No results found

New X-ray Spectral Models and Instruments

X-ray spectral states and metallicity of Ultra Luminous X-ray sources: a deeper insight into their spectral properties

X-ray spectral states and metallicity of Ultra Luminous X-ray sources: a deeper insight into their spectral properties

... mass X-ray binary (LMXB), where material residing in the outer disc obscures our view to the inner regions (White & Swank 1982; White et ...the spectral parameters, and we by-passed this issue ...

218

The X-ray spectral evolution of the ultraluminous X-ray source Holmberg IX X-1.

The X-ray spectral evolution of the ultraluminous X-ray source Holmberg IX X-1.

... other models are used, and the need for the MCD to become substantially brighter and warmer when the disc spectrum gets very curved, dissuades us from directly interpreting the changes in individual model ...

17

The X-ray spectral evolution of the ultraluminous X-ray source Holmberg IX X-1

The X-ray spectral evolution of the ultraluminous X-ray source Holmberg IX X-1

... individual spectral component might provide some useful information about the change in the properties and/or geometry of the accretion ...multiple models in common with other work, and found that the ...

18

The Swift X-ray Telescope Cluster Survey II. X-ray spectral analysis

The Swift X-ray Telescope Cluster Survey II. X-ray spectral analysis

... the X-ray spectral analysis down to very low counts, pro- vided that one accounts for the fitting ...best-fit spectral parameters for our sam- ple. Ideally, massive spectral simulations ...

28

X-ray spectral variability of Seyfert galaxies

X-ray spectral variability of Seyfert galaxies

... true X-ray luminosity estimations of these local sources, which have perhaps been underestimated (Tatum et ...observed X-ray spectral variability of Seyfert galaxies forms a highly ...

294

X-ray spectral variability of Seyfert 2 galaxies

X-ray spectral variability of Seyfert 2 galaxies

... fferent instruments, we tried to decontami- nate the extranuclear emission in XMM-Newton data, to make sure that the emission included in the larger aperture did not produce the observed ...the models ...

77

Jet models of X-Ray Flashes

Jet models of X-Ray Flashes

... GRBs, X-ray–rich GRBs, and XRFs, using Monte Carlo simulations in which they model both the bursts and the observational selection effects introduced by the BeppoSAX and HETE-2 instruments (see ...

8

Spectral Evolution of the Ultraluminous X-Ray Sources M82 X-1 and X-2

Spectral Evolution of the Ultraluminous X-Ray Sources M82 X-1 and X-2

... each spectral data set to allow for absolute differences in normalization, and allowed to vary by ±10% (Madsen et ...∗apec models with the temperatures and abundances fixed to the values found in ...of ...

9

Material Identification and Quantification in Spectral X-ray Micro-CT.

Material Identification and Quantification in Spectral X-ray Micro-CT.

... a new technique for analyzing all of the materials present within a reconstructed microCT image and the capability to quantify each of the ma- terial’s concentration ...voltage X-ray tube that emits ...

214

Spectral distribution from end window X-ray tubes

Spectral distribution from end window X-ray tubes

... the x-ray inner generation by electrons and not the x-rays leaving the anode or tube’s ...accurate spectral intensity distribution from x-ray tubes became more and more important ...

11

The nature of X-ray spectral variability in MCG-6-30-15

The nature of X-ray spectral variability in MCG-6-30-15

... Strictly speaking, the PLc model is not statistically ac- cepted, neither when we fit the individual nor the combined low-energy FFPs. The residual plots show significant, ran- dom data fluctuations around the best-fit ...

18

The Chandra COSMOS-Legacy Survey: Source X-Ray Spectral Properties

The Chandra COSMOS-Legacy Survey: Source X-Ray Spectral Properties

... fitting models more complicated than those used in this work, to properly take into account Compton scattering ...torus models and an MCMC analysis to estimate the probability of a source with a certain N ...

20

Spectral properties of x-ray selected narrow emission line galaxies

Spectral properties of x-ray selected narrow emission line galaxies

... this new m ethod on th e UK Deep Survey sources, which are too faint to be fitted w ith X SPEC ...e X -ray spectra of 19 NELGs taken from th e UK Deep Survey in th e sam e th ree bands as used ...

378

Spectral formation in a radiative shock: application to anomalous X-ray pulsars and soft gamma-ray repeaters

Spectral formation in a radiative shock: application to anomalous X-ray pulsars and soft gamma-ray repeaters

... main models have been proposed to explain the observa- tional data; the classical magnetar model ...Both models have in common that the giant and the highly super-Eddington bursts are produced by magnetic ...

8

Solar flare X-ray source motion as a response to electron spectral hardening

Solar flare X-ray source motion as a response to electron spectral hardening

... Fig. 4. a) Electron spectral index, based on fits to RHESSI spectra. b) −d) Model and observed nonthermal source height evolutions for photon energies of 3–6 keV, 6–8 keV and 8–10 keV respectively. Source heights ...

9

Solar flare X ray source motion as a response to electron spectral hardening

Solar flare X ray source motion as a response to electron spectral hardening

... The heights corresponding to the peak in dI/dz are shown as a solid line. The shaded gray area extending above and below the solid line represents a ‘1-sigma’ width of the model inten- sity distribution, calculated using ...

8

A Systematic Study of The Optical to X-ray Spectral Properties of Active Galactic Nuclei

A Systematic Study of The Optical to X-ray Spectral Properties of Active Galactic Nuclei

... these models which results in colour temperature correction for high temperature disc ...observed, X-ray bright, variable AGN which has a similar energy dependence to its X-ray ...

321

X-ray studies of ultraluminous X-ray sources

X-ray studies of ultraluminous X-ray sources

... grazing-incidence X-ray mirrors with a diameter of ...smoothest X-ray mirrors in orbit, providing very high quality X-ray images with a spatial resolution of < ...The X- ...

273

Models of X ray bright points and concelling magnetic features

Models of X ray bright points and concelling magnetic features

... form new field lines from A extending outwards lying between C and D th at are unconnected to J3, (7 or D and new field lines from A t o ...form new field lines from A t o D and field lines extending ...

162

Ray Optics and Optical Instruments

Ray Optics and Optical Instruments

... § The telescope is supposed to have been invented by an apprentice-boy in the shop of the Dutch spectacle maker Hans Lipershey (ca. (1570 – 1619) in about 1608. § Galileo Galilei (1564 – 1642), upon hearing rumors of the ...

47

Show all 10000 documents...

Related subjects