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Monday, February 10, 2020 | History

3 edition of Catalogue of Cosmic Gamma-Ray Bursts from the KONUS Experiment found in the catalog.

Catalogue of Cosmic Gamma-Ray Bursts from the KONUS Experiment

E.P. Mazets

Catalogue of Cosmic Gamma-Ray Bursts from the KONUS Experiment

  • 288 Want to read
  • 18 Currently reading

Published by Springer .
Written in English

    Subjects:
  • Astronomy - General,
  • Science / Astronomy,
  • Science

  • Edition Notes

    ContributionsKevin Hurley (Preface)
    The Physical Object
    FormatPaperback
    Number of Pages144
    ID Numbers
    Open LibraryOL12801824M
    ISBN 109027790507
    ISBN 109789027790507

    Looking at the shortest burst we can see some tail for Figure 1. Of course, we do not know what fraction of bursts actually exhibit a detectable afterglow; GRB could be a rare and fortuitous exception… Even as we finish this article, we have just learned of another coup. Early searches for this afterglow were unsuccessful, largely because it is difficult to observe a burst's position at longer wavelengths immediately after the initial burst. In March it was announced that active galactic nuclei are not responsible for most gamma-ray background radiation.

    October 4, HETE detects a burst observed so quickly by other telescopes that scientists find evidence of the death of a massive star and the birth of what appears to be a black hole in its place. Feldman and I. And in December the Russian Mars '96 spacecraft, with several gamma-ray detectors, fell into the Pacific Ocean after a rocket malfunction. These payloads were part of a carefully designed set for launching an attack on the origins of gamma-ray bursts. It will be used to measure the abundances of the major rock-forming elements oxygen, magnesium, aluminium, silicon, calcium, titanium, and iron on Vesta and Ceresas well as potassium, thorium, uranium, and water inferred from hydrogen content.

    Knowledge of GRBs, however, is from metal-poor galaxies of former epochs of the universe's evolutionand it is impossible to directly extrapolate to encompass more evolved galaxies and stellar environments with a higher metallicitysuch as the Milky Way. At the same time, there is a continuum containing all the "different kinds" of electromagnetic radiation. Jedrzejczak, et al. Figure 5. Uraninite also always contains small amounts of the lead isotopes Pb and Pb, the end products of the decay series of the uranium isotopes U and U respectively. This suggested an origin of either very faint stars or extremely distant galaxies.


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Catalogue of Cosmic Gamma-Ray Bursts from the KONUS Experiment by E.P. Mazets Download PDF Ebook

Later detectors determined that these gamma-ray bursts are seen to last for fractions of a second to minutes, appearing suddenly from unexpected directions, flickering, and then fading after briefly dominating the gamma-ray sky.

According to Dr. A discovery in gamma-ray astronomy came in the late s and early s from a constellation of military defense satellites. The energies of gamma rays from astronomical sources range over 10 TeV, at a level far too large to result from Catalogue of Cosmic Gamma-Ray Bursts from the KONUS Experiment book decay.

Much as an ordinary dynamo does, the fields would extract rotational energy from the system, channeling it into two jets bursting out along the rotation axis. Last year, for instance, BATSE found a burst that endured for 1, seconds and possibly repeated two days later.

GRB provides the strongest evidence yet for such a tail. One third of the sources have not been detected in other wavelengths. Gamma decay commonly Catalogue of Cosmic Gamma-Ray Bursts from the KONUS Experiment book energies of a few hundred keVand almost always less than 10 MeV.

And last but not least, the unexpected is bringing us child-like astonishments at least once per year with a "GRB-trigger" which turns out to be not related to GRBs. Brighter colors indicate gamma-ray sources.

We are not sure the theory of PBH evaporation can be applied [2,4]. They appeared to come from all directions in the Universe, implying some sort of uniform "gamma-ray background".

Very bright supernovae have been observed to accompany several of the nearest GRBs. Based on the specific algorithm used to trigger burst detection, derive for each recorded gamma-ray burst a reduction factor Rmin, defined such that if the amplitude of the burst is multiplied by Rmin, it would just marginally be detected.

Donald Lamb of the University of Chicago, a veteran gamma-ray-burst hunter, at a meeting in Nashville last week where the result was presented. Although the main purpose of the instruments was not to detect for gamma-ray bursts GRBit nevertheless inadvertently observes them while monitoring solar flares.

Figure 2. Autunite occurs as an oxidizing product of uranium minerals in granite pegmatites and hydrothermal deposits. March 19, NASA announces compelling evidence that long-duration gamma-ray bursts lasting over 10 seconds form from the death of massive stars and simultaneous creation of black holes.

As U is an alpha-ray emitter, it is not shown. Error boxes and spatial distnbution. Possibilities include star forming galaxies, galactic mergers, and yet-to-be explained dark matter interactions. They have been proposed to form a separate class, caused by the collapse of a blue supergiant star[69] a tidal disruption event [70] [71] or a new-born magnetar.

By localizing the sources of GRBs to a few arc minutes, the IPN shows that these sources are not known sources of interest, such as X-ray emitters.Get this from a library!

Catalog of Cosmic Gamma-Ray Bursts from the KONUS Experiment Data. [E P Mazets] -- Continues to be extremely rewarding. Experiments on future missions, such as the two Veneras, Gamma Ray Observatory, and the International Solar Polar Mission, will undoubtedly provide new and.

to September The cosmic origin of 95 bursts comprising the catalogue is confirmed either by their lo-calization with WATCH or by their detection with other GRB experiments. For each burst its time history and information on its intensity in the two energy ranges 8– 20 keV and 20–60 keV are presented.

Most events show. satellite experiments. The online catalog presented here is a useful tool that provides a reference catalog of GRBs for neutrino telescopes in particular and GRBs analyzers in general. Keywords: Online catalog; gamma-ray bursts; neutrino astronomy 1 Introduction .Get this from pdf library!

Catalog of Cosmic Gamma-Ray Bursts from the KONUS Experiment Data.

Kevin Hurley

[E P Mazets] -- Continues to be extremely rewarding. Experiments on future missions, such as the two Veneras, Gamma Ray Observatory, and the International Solar Polar Mission, will undoubtedly provide new and.Abstract - The Mars Odyssey spacecraft carries two experiments which are capable of detecting cosmic gamma-ray bursts and soft gamma repeaters.

Since April they have detected approximately bursts and, in conjunction with the other spacecraft of the interplanetary network, localized many of them rapidly and precisely enough to allow.Apr 28,  · Catalog of Cosmic Ebook Bursts from the KONUS Experiment Data Order in the Amorphous “State” of Polymers Effects of Mass Loss on Stellar Evolution: IAU Colloquium no.

59 Held in Miramare, Trieste, Italy, September 15–19, /5(30).