نتایج جستجو برای: الگوریتم swift

تعداد نتایج: 28573  

2004
Derek B. Fox

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...

2007
V. Mangano V. La Parola E. Troja G. Cusumano T. Mineo D. Burrows S. Campana M. Capalbi G. Chincarini N. Gehrels P. Giommi A. Moretti M. Perri P. Romano G. Tagliaferri

— 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...

2017
Tsuyoshi Sukenari Kazuya Ikoma Motoyuki Horii Masahiro Umeda Masamitsu Kido Shigeki Hayashi Yusuke Hara Tetsuro Yamasaki Okihiro Onishi Toru Morihara Hiroyoshi Fujiwara Mitsuhiro Kawata Toshikazu Kubo

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.

2008
David Alexander Kann

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.

Journal: :Nature Biotechnology 2009

Journal: :Medical History 1964

Journal: :Magnetic Resonance in Medicine 2014

Journal: :Proceedings of the International Astronomical Union 2011

Journal: :The Journal of Thoracic and Cardiovascular Surgery 2020

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