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Tuesday, July 28, 2020 | History

3 edition of Multiwavelength observations of unidentified high energy gamma-ray sources found in the catalog.

Multiwavelength observations of unidentified high energy gamma-ray sources

# Multiwavelength observations of unidentified high energy gamma-ray sources

## annual status report for NAG 5-2051

• 14 Want to read
• 30 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, D.C.], [Springfield, Va .
Written in English

Subjects:
• Gamma ray astronomy.,
• Gamma ray spectra.,
• Gamma ray telescopes.,
• Gamma rays.,
• Pulsars.,
• Radio astronomy.,
• Radio sources (Astronomy),
• Wavelengths.,
• X ray astronomy.,
• X ray spectra.

• Edition Notes

The Physical Object ID Numbers Other titles Annual status report for NAG 5-2051. Statement prepared by Columbia Astrophysics Laboratory, Departments of Astronomy and Physics, Columbia University ; principal investigator, Jules P. Halpern. Series NASA contractor report -- NASA CR-197840. Contributions United States. National Aeronautics and Space Administration. Format Microform Pagination 1 v. Open Library OL15413846M

The research field of the gamma-ray astronomy is new and rapidly grown, providing remarkable and promising scientific results. In the last decades, the development of new gamma-ray detectors on board satellites as the AGILE and the Fermi observatories, or groud-based instruments as the Imaging Atmospheric Cherenkov Technique telescope MAGIC, lead up to a . Abstract: Data obtained in the very high energy gamma-ray band with the new generation of imaging telescopes, in particular through the galactic plane survey undertaken by H.E.S.S., low threshold observations with MAGIC and more recently by operation of VERITAS, have revealed dozens of galactic and extragalactic sources, providing a wealth of.

6. Other possible sources of high energy neutrinos. Vela junior: Above the bound necessary to have more than 1 μ / (km 2 × yr), namely, (12) I γ (20 TeV) = (2 − 6) × 10 − 15 / TeV cm 2 s there are two more young SNR, Vela Jr and Vela X, observed by HESS. The first one, also known as RX J, is a young shell-type SNR, just as RX Cited by: Discovery and follow-up studies of the extended, off-plane, VHE gamma-ray source HESS J Collaboration, TH aap, A45+. Information/Download; Revisiting the Westerlund 2 field with the HESS telescope array Collaboration, TH aap, A46+. Information/Download; Discovery of VHE gamma-rays from the BL Lacertae object PKS

High energy gamma rays emitted from the Moon are produced in the inelastic collisions of cosmic-ray nuclei (CRs) with the lunar surface. The gamma-ray emission from the Moon was de-tected for the ﬁrst time by the EGRET instrument [1], which operated from to onboard the Compton Gamma Ray Observatory (CGRO).Author: Francesco Loparco, Mario Nicola Mazziottai. Procedures: Students will read through the Gamma-Ray Science lesson and complete the reading guide at the end of this lesson plan. Introduction: Professor Dieter Hartmann is a high energy physicist who studies supernovae and gamma-ray bursts (GRBs) to make sense of the physical processes that cause them. He also studies GRBs to.

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### Multiwavelength observations of unidentified high energy gamma-ray sources Download PDF EPUB FB2

Get this from a library. Multiwavelength observations of unidentified high energy gamma-ray sources: combined annual status report & final technical report for NAG [Jules P Halpern; United States. National Aeronautics and Space Administration.]. Buy Multiwavelength Approach to Unidentified Gamma-Ray Sources: A Second Workshop on the Nature of the High-Energy Unidentified Sources (V/1.

Get this from a library. Multiwavelength observations of unidentified high energy gamma-ray sources: annual status report for NAG [Jules P Halpern; United States. National Aeronautics and Space Administration.]. The Energetic Gamma-Ray Experiment Telescope (EGRET) instru­ ment on the Compton Gamma-Ray Observatory left as a legacy its Third Catalog of High Energy Gamma-Ray Sources, whose detections include a large number of blazars, some pulsars, the Large Magellanic Cloud and a solar flare.

Most of the. The Nature of Unidentified Galactic High-Energy Gamma-Ray Sources: Proceedings of the Workshop held at Tonantzintla, Puebla, Mexico, October and Space Science Library Book ) - Kindle edition by Carramiñana, Alberto, Reimer, Olaf, Thompson, David J.

Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, Author: David J. Thompson.

Nearly one half of the point-like gamma-ray sources detected by EGRET instrument of the late Compton satellite are still defeating our attempts at identifying them. To establish the origin and nature of these enigmatic sources has become a major problem of current high-energy astrophysics.

The. Brand new Book. As was the case for COS B, the majority of high-energy (greater than MeV) gamma-ray sources detected by the EGRET instrument on GRO are not immediately identifiable with cataloged objects at other wavelengths. These persistent gamma-ray sources are, next to the gamma-ray bursts, the least understood objects in the universe.

To establish the origin and nature of these enigmatic sources has become a major problem of current high-energy astrophysics. The second workshop on Multiwavelength Approach to Unidentified Gamma-ray Sources intends to shed new and fresh light on the problem of the nature of these mysterious sources and the objects behind them.

The Energetic Gamma-Ray Experiment Telescope (EGRET) instru­ ment on the Compton Gamma-Ray Observatory left as a legacy its Third Catalog of High Energy Gamma-Ray Sources, whose detections include a large number of blazars, some pulsars, the Large Magellanic Cloud and a solar flare.

Multiwavelength Approach to Unidentified Gamma-ray Sources: A Second Workshop On the Nature of the High-energy Unidentified Sources | K.S. Cheng, Gustavo E. Romero | download | B–OK. Download books for free. Find books.

In "Gamma Ray Pulsars: Multiwavelength Observations" review D. Thompson presents the light curves from seven highest-confidence Gamma-Ray Pulsars (GRPs) in.

This Chapter provides a review of $\gamma$-ray sources lying at high Galactic latitudes. Their statistical properties and variability status, as well as studies involving cross correlations with lower frequency catalogs and multiwavelength observations, are summarized.

The case for active galactic nuclei is analyzed with special emphasis, since they represent the largest population. Types of gamma-ray bursts (GRBs): This graphic illustrates the different sources and processes that result in long and short gamma-ray bursts.

The left panel shows the collapse of a giant star that is thought to lead to a long GRB. The right panel shows the inspiral and coalescence of two neutron stars, which is thought to result in a short GRB. Multiwavelength Observations. Gamma-ray Multiwavelength Mailing List - please visit the list page or contact Dave Thompson or J.D.

Myers to be added to the mailing list. Gamma-ray Multiwavelength Mailing List Archive (Must be a member of the list) Old Gamma-ray Multiwavelength Mailing List Archive; Multiwavelength Observations Reporting Form.

Full Description: "The Energetic Gamma-Ray Experiment Telescope (EGRET) instru ment on the Compton Gamma-Ray Observatory left as a legacy its Third Catalog of High Energy Gamma-Ray Sources, whose detections include a large number of blazars, some pulsars, the Large Magellanic Cloud and a solar flare.

Most of the newly discovered objects - a majority of the catalog -are. from book Multiwavelength Approach to Unidentified Gamma-Ray Sources: A Second Workshop on the Nature of the High-Energy Unidentified Sources (pp) Identifying Variable γ. @article{osti_, title = {SUZAKU X-RAY FOLLOW-UP OBSERVATIONS OF SEVEN UNASSOCIATED FERMI-LAT GAMMA-RAY SOURCES AT HIGH GALACTIC LATITUDES}, author = {Takahashi, Y.

and Kataoka, J. and Nakamori, T. and Maeda, K. and Makiya, R. and Totani, T. and Cheung, C. and Stawarz, L. and Guillemot, L. and Freire, P. and. A European team based in Heidelberg (Germany) and their colleagues from the HEGRA collaboration have discovered a new, unidentified, very high energy gamma-ray source in our Galaxy.

This source. This book not only provides an overview of the latest research and future plans for space-borne and ground-based experiments dedicated to the observation of the gamma-ray sky, but also addresses the topic of variable gamma-ray sources from the perspective of their identification and counterparts at different wavelengths.

We report for the first time a γ-ray and multiwavelength nearly periodic oscillation in an active galactic nucleus. Using the Fermi Large Area Telescope we have discovered an apparent quasi-periodicity in the γ-ray flux (E > MeV) from the GeV/TeV.

Fermi sources 1FGL J{c and 1FGL J{c, the Be stars HD and HD have been proposed as gamma-ray binary candidates. During Fermi Cycle 4, we have performed multiwavelength observations of these sources using XMM-Newton and the CTIO m telescope.

We do not con rm high energy emission from the Be stars.Multiwavelength Observations of Gamma-ray Binary Candidates M. Virginia McSwain1, Masha Chernyakova2, Denis Malishev2, Michael De Becker3, Stephen Williams4 1Lehigh University, 2Dublin Institute for Advanced Studies, 3Université de Liège, 4Georgia State University Abstract(There% are% currently% only% six% known% high% mass% X6ray% binaries%." Gamma-ray features that are hard to encompass within detected populations #Variability behavior beyond the known source classes, and the known distributions in sky #Extension & confusion (even admitting composite sources) #FoM approaches pointing to gamma-ray sources orphan from known counterparts - despite dedicated searches.