Development of a hard X-ray polarimeter for solar flares and gamma-ray bursts

1998 ◽  
Vol 45 (3) ◽  
pp. 910-914 ◽  
Author(s):  
M.L. McConnell ◽  
D.J. Forrest ◽  
J. Macri ◽  
M. McClish ◽  
M. Osgood ◽  
...  
Keyword(s):  
Solar Flares ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
X Ray

Development of a hard X-ray polarimeter for solar flares and gamma-ray bursts

2002 ◽  
Author(s):  
M.L. McConnell ◽  
D.J. Forrest ◽  
J. Macri ◽  
M. McClish ◽  
M. Osgood ◽  
...  
Keyword(s):  
Solar Flares ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
X Ray

High Energy Transient Ionospheric Monitoring Network

1990 ◽  
Vol 8 (3) ◽  
pp. 263-265
Author(s):  
Paul J. Edwards
Keyword(s):  
Gravity Waves ◽  
Solar Flares ◽  
Gamma Ray ◽  
Monitoring Network ◽  
High Energy ◽  
Gamma Ray Bursts ◽  
Ionospheric Perturbations ◽  
X Ray ◽  
Radio Receivers ◽  
Computer Based

AbstractContinuous, wide sky coverage is essential for the detection and monitoring of infrequent, short-lived events of astrophysical interest such as supernova and nova explosions, variable X-ray sources, gamma ray bursts, gravity waves and stellar and solar flares. We propose to (1) examine past radio propagation records and (2) develop new computer based radio receivers to monitor and log ionospheric perturbations associated with these events.

scholarly journals Hard x-ray polarimeter for gamma-ray bursts and solar flares

2003 ◽  
Author(s):  
Mark L. McConnell ◽  
James Ledoux ◽  
John R. Macri ◽  
James M. Ryan
Keyword(s):  
Solar Flares ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
X Ray

scholarly journals THE APPLICATION OF THE BrilLanCe SERIES SCINTILLATION DETECTOR IN THE SPECTROMETER OF NEUTRAL PARTICLES FOR THE SATELLITE EXPERIMENT ZINA-NT

2012 ◽  
Vol 12 ◽  
pp. 28-36
Author(s):  
IRENE V. ARKHANGELSKAJA ◽  
ANDREY I. ARKHANGELSKY ◽  
ALEXEY.G BATISCHEV ◽  
ARKADY M. GALPER ◽  
NATALYA V. KONDRATYEVA ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Solar Flares ◽  
Gamma Ray ◽  
Light Output ◽  
Gamma Ray Bursts ◽  
X Ray ◽  
Neutral Particles ◽  
Satellite Experiment ◽  
Excellent Energy Resolution ◽  
Radiation Conditions

Spectrometric detector complex ZINA-NT is intended to study a radiation conditions onboard satellite and characteristics of hard X-ray and gamma-ray fluxes from GRB, solar flares and to detect other non-stationary fluxes of cosmic gamma-rays. The advantages for using of this new detector for modification of present neutral particles detector on the base of CsI(Tl) are discussed. Scintillation detectors based on BrilLanCe series crystal have got very small lighting time, an excellent energy resolution and light output, more intensive than devices based on CsI(Tl). Using of BrilLanCe series crystal instead of CsI(Tl) ones allows to detect terrestrial gamma flashes (TGF), gamma ray bursts (GRB) and solar flares with smaller time durations and intensities. Moreover, the counts rate linearity region of BrilLanCe detectors is extended up to 106 s-1 and it allows to observe a very intensive events. So, the using of such type of detector permits us the possibility to separate gamma-quanta and neutrons on the timescales less than 50 microseconds.

The X-ray luminosity function of short gamma-ray bursts

2021 ◽  
Vol 366 (4) ◽  
Author(s):  
Zhi-Ying Liu ◽  
Fu-Wen Zhang ◽  
Si-Yuan Zhu
Keyword(s):  
Luminosity Function ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
X Ray

scholarly journals Interpreting the X-ray afterglows of gamma-ray bursts with radiative losses and millisecond magnetars

2020 ◽  
Vol 499 (4) ◽  
pp. 5986-5992
Author(s):  
Nikhil Sarin ◽  
Paul D Lasky ◽  
Gregory Ashton
Keyword(s):  
Gravitational Wave ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Dipole Radiation ◽  
X Ray ◽  
Radiative Efficiency ◽  
Central Engine ◽  
Radiative Losses ◽  
Wave Emission ◽  
Prompt Emission

ABSTRACT The spin-down energy of millisecond magnetars has been invoked to explain X-ray afterglow observations of a significant fraction of short and long gamma-ray bursts. Here, we extend models previously introduced in the literature, incorporating radiative losses with the spin-down of a magnetar central engine through an arbitrary braking index. Combining this with a model for the tail of the prompt emission, we show that our model can better explain the data than millisecond-magnetar models without radiative losses or those that invoke spin-down solely through vacuum dipole radiation. We find that our model predicts a subset of X-ray flares seen in some gamma-ray bursts. We can further explain the diversity of X-ray plateaus by altering the radiative efficiency and measure the braking index of newly born millisecond magnetars. We measure the braking index of GRB061121 as $n=4.85^{+0.11}_{-0.15}$ suggesting the millisecond-magnetar born in this gamma-ray burst spins down predominantly through gravitational-wave emission.

scholarly journals Diverse Features of the Multiwavelength Afterglows of Gamma-Ray Bursts: Natural or Special?

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
J. J. Geng ◽  
Y. F. Huang
Keyword(s):  
Black Holes ◽  
Numerical Method ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Shock Model ◽  
Reverse Shock ◽  
X Ray ◽  
Electron Positron ◽  
Forward Shock ◽  
Electron Positron Pair

The detection of optical rebrightenings and X-ray plateaus in the afterglows of gamma-ray bursts (GRBs) challenges the generic external shock model. Recently, we have developed a numerical method to calculate the dynamics of the system consisting of a forward shock and a reverse shock. Here, we briefly review the applications of this method in the afterglow theory. By relating these diverse features to the central engines of GRBs, we find that the steep optical rebrightenings would be caused by the fall-back accretion of black holes, while the shallow optical rebrightenings are the consequence of the injection of the electron-positron-pair wind from the central magnetar. These studies provide useful ways to probe the characteristics of GRB central engines.

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