Results 1 to 10 of about 107,704 (282)

The first Swift X-ray Flash: The faint afterglow of XRF 050215B [PDF]

open access: bronze, 2006
We present the discovery of XRF 050215B and its afterglow. The burst was detected by the Swift BAT during the check-out phase and observations with the X-ray telescope began approximately 30 minutes after the burst.
A. J. Levan   +23 more
core   +4 more sources

HOW UNUSUAL IS XRF 060218? [PDF]

open access: yesThe Astrophysical Journal, 2010
7 pages, 5 figures, Appeared in ApJL, Volume 713, Issue 1, pp.
Mandal, Samir, Eichler, David
openaire   +3 more sources

X-ray Fluorescence Analysis of Feldspars and Silicate Glass: Effects of Melting Time on Fused Bead Consistency and Volatilisation [PDF]

open access: yes, 2020
Reproducible preparation of lithium tetraborate fused beads for XRF analysis of glass and mineral samples is of paramount importance for analytical repeatability.
Backhouse, Daniel J.   +11 more
core   +5 more sources

X-ray Flashes or soft Gamma-ray Bursts? The case of the likely distant XRF 040912 [PDF]

open access: yes, 2006
In this work, we present a multi-wavelength study of XRF 040912, aimed at measuring its distance scale and the intrinsic burst properties. We performed a detailed spectral and temporal analysis of both the prompt and the afterglow emission and we ...
A. de Ugarte Postigo   +91 more
core   +4 more sources

Could the GRB-Supernovae GRB 031203 and XRF 060218 be Cosmic Twins? [PDF]

open access: yes, 2010
The gamma-ray burst (GRB) / X-ray flash (XRF) events GRB 031203, discovered by INTEGRAL, and XRF 060218, discovered by Swift, represent two of only five GRB-SNe with optical spectroscopic confirmation of their SN components.
Aptekar   +44 more
core   +1 more source

Development of X-ray fluorescence technique for the uranium determination in Mongolian coal, coal ash, and phosphate ore [PDF]

open access: yes, 2014
The results of the determination of uranium in Mongolian brown coal, coal ash, phosphate rock, and technological samples by X-ray fluorescence (XRF) spectrometry are presented.
Bolortuya, D.   +3 more
core   +2 more sources

Compressive Sensing for Dynamic XRF Scanning

open access: yes, 2020
X-Ray Fluorescence (XRF) scanning is a widespread technique of high importance and impact since it provides chemical composition maps crucial for several scientific investigations.
Alberti, Roberto,   +7 more
core   +1 more source

Cosmological X-Ray Flashes from Off-Axis Jets [PDF]

open access: yes, 2003
The of the cosmological X-ray flashes detected by WFC/BeppoSAX is calculated theoretically in a simple jet model. The total emission energy from the jet is assumed to be constant.
Ioka, Kunihito   +2 more
core   +3 more sources

Global Characteristics of X-Ray Flashes and X-Ray-Rich GRBs Observed by HETE-2 [PDF]

open access: yes, 2004
We describe and discuss the global properties of 45 gamma-ray bursts (GRBs) observed by HETE-2 during the first three years of its mission, focusing on the properties of X-Ray Flashes (XRFs) and X-ray-rich GRBs (XRRs).
Atteia, J-L.   +37 more
core   +3 more sources

Delayed Flashes from Counter Jets of Gamma Ray Bursts [PDF]

open access: yes, 2002
If X-ray flashes are due to the forward jet emissions from gamma ray bursts (GRBs) observed with large viewing angles, we show that a prompt emission from a counter jet should be observed as a delayed flash in the UV or optical band several hours to a ...
Ioka, Kunihito   +2 more
core   +4 more sources

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