Jet Models for Flaring in Sgr A
            <sup>*</sup>

Markoff, Sera; Falcke, H.

doi:10.1002/9783527617982.ch68

Cited by 4 publications

(1 citation statement)

References 19 publications

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“…The usual e + n coincidence signal is detected in the liquid scintillator with n background suppression from fiducial volume cuts and cuts based on µ events. For experimental details, please see the KamLAND paper in these proceedings [10]. For a no-oscillation result, the excluded region will eliminate the LMA solution from further consideration.…”

Section: Kamland: Long Baselinesmentioning

confidence: 99%

Status and prospects of neutrino oscillations: terrestrial sources

Markoff¹

2003

J. Phys. G: Nucl. Part. Phys.

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By exploring the oscillation mixing angle versus mass difference allowed regions, terrestrial-based experiments have advanced our understanding of the ν oscillation solutions proposed by the measurements of neutrinos produced in the sun and in the atmosphere. This paper reviews the contribution of reactor anti-neutrino experiments and of accelerator neutrino experiments to the development of these theories. Selected experiments are briefly described, the results are presented and the impact on our understanding of neutrino oscillations is discussed.

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Section: Kamland: Long Baselinesmentioning

confidence: 99%

Status and prospects of neutrino oscillations: terrestrial sources

Markoff¹

2003

J. Phys. G: Nucl. Part. Phys.

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Exploring the role of jets in X-ray binaries and low-luminosity AGN

Markoff¹,

Nowak²,

Falcke

et al. 2004

Nuclear Physics B - Proceedings Supplements

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X-ray time lags from a pivoting power law in black holes

Körding

Falcke

2004

A&A

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Abstract. Most black hole candidate X-ray binaries show Fourier time lags between softer and harder X-rays. The hard photons seem to arrive up to a few ms after the soft for a given Fourier frequency of the perturbation. The energy dependence of the time lags has a roughly logarithmic behavior. Up to now most theories fail to explain the observed magnitude and Fourier frequency dependence of the lags or fail other statistical tests. We show that the time lags can arise from a simple pivoting power law model, which creates the logarithmic dependence on the photon energy at once. A pivoting power law arises naturally from jet/synchrotron models for the X-ray emission, but may also be applicable to corona models. A hint to the coherence features of the light-curves can be obtained from the power spectral density, which can be decomposed into a few broad Lorentzians that could arise from a couple of strongly damped oscillators with low quality factors below one. Using small variations of the power law index for each Lorentzian separately the lags can be derived analytically. They show the correct Fourier frequency dependence of the time lags. If one assumes variations of the power law index by ±0.2 the model can account for the observed magnitude of the time lags in Cyg X-1. The model can also be applied to TeV blazars, where a pivoting power law and hard lags have been observed directly in some cases. As a further test we calculated the cross-and auto-correlation functions for our model, which also show qualitatively the observed behavior. The auto-correlation function for higher energies has a narrower peak than at lower energies and the cross-correlation function is asymmetric but peaks nearly at zero. The coherence function for the model is in agreement with the observed data in the Fourier regime, where the model is valid.

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Jet Models for Flaring in Sgr A ^*

Cited by 4 publications

References 19 publications

Status and prospects of neutrino oscillations: terrestrial sources

Status and prospects of neutrino oscillations: terrestrial sources

Exploring the role of jets in X-ray binaries and low-luminosity AGN

X-ray time lags from a pivoting power law in black holes

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Jet Models for Flaring in Sgr A *

Cited by 4 publications

References 19 publications

Status and prospects of neutrino oscillations: terrestrial sources

Status and prospects of neutrino oscillations: terrestrial sources

Exploring the role of jets in X-ray binaries and low-luminosity AGN

X-ray time lags from a pivoting power law in black holes

Contact Info

Product

Resources

About

Jet Models for Flaring in Sgr A ^*