نتایج جستجو برای: الگوریتم swift
تعداد نتایج: 28573 فیلتر نتایج به سال:
We consider the prospects for a complete survey of the 18,811 sources of the ROSAT All-Sky Survey Bright Source Catalog (BSC) with NASA’s Swift gamma-ray burst (GRB) mission. By observing each BSC source for 500 s with the satellite’s imaging X-ray and UV/optical telescopes, this “Swift Bright (Source) Catalog Survey” (Swift-BCS) would derive <5 source positions for all BSC sources that have no...
— We have computed the luminosity rest frame light curves of the first 40 Gamma-ray bursts (GRBs) detected by Swift with well established redshift. We studied average properties of the light curves in the four subsamples of bursts given by z < 1, 1 < z < 2, 2 < z < ∼ 4, and z > ∼ 4. We conclude that all the last three subsamples share the same morphology and the same luminosity range. Very high...
Sweep imaging with Fourier transform (SWIFT) method has been developed to image tissues with very short T2 values, such as cortical bone. The purpose of this study was to measure the T1 value of the rat cortical bone. It was approximately 120 ms on 7.04T. This result could thus be useful for studying bony tissue according to the SWIFT method in the future.
We compiled a large sample of Swift-era photometric data on long (Type II) and short (Type I) GRB afterglows. We compare the luminosity and energetics of the different samples to each other and to the afterglows of the pre-Swift era. Here, we present the first results of these studies.
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