Relevant bibliographies by topics / Unidentified TeV sources

Academic literature on the topic 'Unidentified TeV sources'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Unidentified TeV sources"

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Wang, W., Z. J. Jiang, C. S. J. Pun, and K. S. Cheng. "Possible TeV source candidates among the unidentified EGRET sources." Monthly Notices of the Royal Astronomical Society 360, no. 2 (June 21, 2005): 646–54. http://dx.doi.org/10.1111/j.1365-2966.2005.09050.x.

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Yamazaki, Ryo, Kazunori Kohri, Aya Bamba, Tatsuo Yoshida, Toru Tsuribe, and Fumio Takahara. "On the Origin of Galactic TeV Unidentified Sources." Progress of Theoretical Physics Supplement 169 (2007): 166–69. http://dx.doi.org/10.1143/ptps.169.166.

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Fegan, S. J., and T. C. Weekes. "A Survey of Unidentified Egret Sources at TeV Energies." Astrophysics and Space Science 297, no. 1-4 (June 2005): 431–38. http://dx.doi.org/10.1007/s10509-005-7703-x.

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Devin, J., M. Renaud, M. Lemoine-Goumard, and G. Vasileiadis. "Multiwavelength constraints on the unidentified Galactic TeV sources HESS J1427−608, HESS J1458−608, and new VHE γ-ray source candidates." Astronomy & Astrophysics 647 (March 2021): A68. http://dx.doi.org/10.1051/0004-6361/202039563.

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Aims. Among the γ-ray sources discovered at high and very-high energies, a large fraction still lack a clear identification. In particular, the H.E.S.S. Galactic Plane Survey (HGPS) revealed 78 TeV sources among which 47 are not clearly associated with a known object. Multiwavelength data can help identify the origin of the very-high energy γ-ray emission, although some bright TeV sources have been detected without clear counterparts. We present a multiwavelength approach to constrain the origin of the emission from unidentified HGPS sources. Methods. We present a generic pipeline that explores a large database of multiwavelength archival data toward any region in the Galactic plane. Along with a visual inspection of the retrieved multiwavelength observations to search for faint and uncataloged counterparts, we derive a radio spectral index that helps disentangle thermal from nonthermal emission and a mean magnetic field through X-ray and TeV data in case of a leptonic scenario. We also search for a spectral connection between the GeV and the TeV regimes with the Fermi-LAT cataloged sources that may be associated with the unidentified HGPS source. We complete the association procedure with catalogs of known objects (supernova remnants, pulsar wind nebulae, H II regions, etc.) and with the source catalogs from instruments whose data are retrieved. Results. The method is applied on two unidentified sources, namely HESS J1427−608 and HESS J1458−608, for which the multiwavelength constraints favor the pulsar wind nebula (PWN) scenario. We model their broadband nonthermal spectra in a leptonic scenario with a magnetic field B ≲ 10 μG, which is consistent with that obtained from ancient PWNe. We place both sources within the context of the TeV PWN population to estimate the spin-down power and the characteristic age of the putative pulsar. We also shed light on two possibly significant γ-ray excesses in the HGPS: the first is located in the south of the unidentified source HESS J1632−478 and the second is spatially coincident with the synchrotron-emitting supernova remnant G28.6−0.1. The multiwavelength counterparts found toward both γ-ray excesses make these promising candidates for being new very-high energy γ-ray sources.
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Spengler, Gerrit. "Search for Galactic Pevatron candidates in a population of unidentified γ-ray sources." Astronomy & Astrophysics 633 (January 2020): A138. http://dx.doi.org/10.1051/0004-6361/201936632.

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Aims. A list of Pevatron candidates is presented to enable deeper observations and dedicated analyses. Methods. Lower limits on the energy cutoff for unidentified γ-ray sources detected in the High Energy Stereoscopic System (HESS) Galactic plane survey were derived. Additional public data from the Very Energetic Radiation Imaging Telescope Array System, HESS, and Milagro experiments were used for MGRO J1908+06 to confirm the limit derived from the HESS Galactic plane survey data and to enable further conclusions on the presence of spectral breaks. Results. Five Pevatron candidates are identified in the HESS Galactic plane survey. The cutoff of the γ-ray spectrum for these sources is larger than 20 TeV at 90% confidence level. The γ-ray sources MGRO J1908+06 and HESS J1641−463, found to be Pevatron candidates in the analysis of the HESS Galactic plane survey catalog, have already been discussed as Pevatron candidates. For MGRO J1908+06, the lower limit on the γ-ray energy cutoff is 30 TeV at 90% confidence level. This is a factor of almost two larger than previous results. Additionally, a break in the γ-ray spectrum at energies between 1 TeV and 10 TeV with an index change ΔΓ > 0.5 can be excluded at 90% confidence level for MGRO J1908+06. The energy cutoff of accelerated particles is larger than 100 TeV at 90% confidence level in a hadronic scenario for all five Pevatron candidates. A hadronic scenario is plausible for at least three of the Pevatron candidates, based on the presence of nearby molecular clouds and supernova remnants.
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Fox, D. B., K. Kashiyama, and P. Mészarós. "SUB-PeV NEUTRINOS FROM TeV UNIDENTIFIED SOURCES IN THE GALAXY." Astrophysical Journal 774, no. 1 (August 19, 2013): 74. http://dx.doi.org/10.1088/0004-637x/774/1/74.

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Ioka, Kunihito, and Peter Mészáros. "HYPERNOVA AND GAMMA-RAY BURST REMNANTS AS TeV UNIDENTIFIED SOURCES." Astrophysical Journal 709, no. 2 (January 13, 2010): 1337–42. http://dx.doi.org/10.1088/0004-637x/709/2/1337.

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Rowell, G. P. "Ground-Based Gamma-Ray Detection of High Energy Galactic Sources: An Update." Symposium - International Astronomical Union 218 (2004): 407–14. http://dx.doi.org/10.1017/s0074180900181495.

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I review the present status of ground-based γ-ray astronomy, concentrating on the population of Galactic TeV sources. A number of new telescope systems are now being completed, and promise to yield exciting new discoveries, expanding rapidly the number of sources. The TeV Galactic sources today include a number of plerions, shell-type supernova remnants, an X-ray binary, and also one unidentified candidate. Their present status, and our understanding of their TeV γ-ray emission processes are summarized and some motivation driving development of the field is outlined.
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Wang, W., Y. Zhao, and Y. Lu. "Gamma-ray Mature Pulsars: Unidentified EGRET Sources, Possible TeV Sources and Radio Detectivity." Chinese Journal of Astronomy and Astrophysics 6, S2 (October 2006): 259–62. http://dx.doi.org/10.1088/1009-9271/6/s2/48.

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Chang, Chulhoon, Alexander Konopelko, and Wei Cui. "Search for Pulsar Wind Nebula Associations with Unidentified TeV γ‐Ray Sources." Astrophysical Journal 682, no. 2 (August 2008): 1177–84. http://dx.doi.org/10.1086/589225.

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Dissertations / Theses on the topic "Unidentified TeV sources"

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Ziegler, Alexander [Verfasser], Christopher van [Akademischer Betreuer] Eldik, and Christopher van [Gutachter] Eldik. "A detailed study of the unidentified TeV source HESS J1826-130 in the search for Galactic PeVatrons with H.E.S.S. / Alexander Ziegler ; Gutachter: Christopher van Eldik ; Betreuer: Christopher van Eldik." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2018. http://d-nb.info/1163806811/34.

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Pointon, Stephanie Kate. "A study of the interstellar medium towards the VHE gamma-ray sources HESS J1614-518 and HESS J1616-508." Thesis, 2016. http://hdl.handle.net/2440/98262.

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One of the most intriguing problems in galactic astronomy is the observation of the highest energy photons. Very high energy (VHE) gamma-ray telescopes such as HESS have located sources of TeV (10¹² eV) gamma-rays which are not associated with any known objects. Whilst these could be a new type of particle accelerator, it is more likely that they are related to supernova remnants (SNRs), pulsar wind nebula (PWN) or massive stellar regions. They may result from high energy cosmic-ray (CR) interactions with interstellar gas (ISM). This project used new radio data which provided information on molecular clouds to model the production of gamma-rays from CR interactions. The densities of protons in these clouds were used in models to determine if potential particle accelerators surrounding the two HESS sources, HESS J1616-508 and HESS J1614-518 were capable of producing the emission. The potential accelerators surrounding HESS J1616-508 were all found to have insufficient gas within their diffusion radius. Thus, it was not possible for those sources to produce gamma-rays through hadronic interactions despite only requiring modest CR energy budgets compared to that provided from a SNR. The same result was also found for WR 73-1 and PSR J1613-5211 near HESS J1614-518. However, Pismis 22 and WR 74 contained CO RoI CO1, CO2 and CO25 within their diffusion radii. The energy in CRs required for each region to generate the overlapping gamma-ray emission was compared to the available energy if a SNR was assumed to be the accelerator. The required energy was found to be less than the energy available. Thus, WR 74 and Pismis 22 could still generate the hadronic gamma-ray emission from HESS J1614-518.
Thesis (M.Phil.) -- University of Adelaide, School of Physical Sciences, 2016.
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Books on the topic "Unidentified TeV sources"

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300 GeV observations of unidentified EGRET sources: A search for TeV counterparts to BATSE gamma-ray bursts : grant NAG5-3581, final report for the period 15 November 1996 to 14 November 1997. Cambridge, Mass: Smithsonian Institution, Astrophysical Observatory, 1998.

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Book chapters on the topic "Unidentified TeV sources"

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Fegan, Stephen. "TEV Observations of SNRS and Unidentified Sources." In The Nature of Unidentified Galactic High-Energy Gamma-Ray Sources, 285–97. Dordrecht: Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-1007-8_21.

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Mukherjee, R., E. V. Gotthelf, and J. P. Halpern. "Transient X-ray sources in the field of the unidentified gamma-ray source TeV J2032+4130 in Cygnus." In The Multi-Messenger Approach to High-Energy Gamma-Ray Sources, 29–33. Dordrecht: Springer Netherlands, 2007. http://dx.doi.org/10.1007/978-1-4020-6118-9_7.

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Conference papers on the topic "Unidentified TeV sources"

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Grenier, Isabelle A. "EGRET unidentified sources." In GeV-TeV gamma ray astrophysics workshop. AIP, 2000. http://dx.doi.org/10.1063/1.1291377.

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Rowell, Gavin. "Unidentified TeV sources and the interstellar medium." In HIGH ENERGY GAMMA-RAY ASTRONOMY: 6th International Meeting on High Energy Gamma-Ray Astronomy. Author(s), 2017. http://dx.doi.org/10.1063/1.4968896.

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Kieda, D. "Evidence for New Unidentified TeV γ-Ray Sources from Recent TeV Sky Surveys." In HIGH ENERGY GAMMA-RAY ASTRONOMY: 2nd International Symposium on High Energy Gamma-Ray Astronomy. AIP, 2005. http://dx.doi.org/10.1063/1.1878485.

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Pühlhofer, Gerd, Jéro^me Rodriguez, and Phillippe Ferrando. "X-ray Studies of Unidentified Galactic TeV Gamma-ray Sources." In SIMBOL-X: FOCUSING ON THE HARD X-RAY UNIVERSE: Proceedings of the 2nd International Simbol-X Symposium. AIP, 2009. http://dx.doi.org/10.1063/1.3149430.

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Tibolla, O., Denis Bastieri, and Riccardo Rando. "H.E.S.S. unidentified sources: how can Fermi GST help?" In SCIENCE WITH THE NEW GENERATION OF HIGH ENERGY GAMMA-RAY EXPERIMENTS: Proceedings of the 6th Edition: Bridging the Gap Between GeV and TeV. AIP, 2009. http://dx.doi.org/10.1063/1.3125784.

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Sguera, Vito. "Hard fast X-ray transients as possible counterparts of unidentified MeV/TeV sources." In 7th INTEGRAL Workshop. Trieste, Italy: Sissa Medialab, 2009. http://dx.doi.org/10.22323/1.067.0082.

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Rowell, G., D. Horns, Y. Fukui, Y. Moriguchi, Felix A. Aharonian, Werner Hofmann, and Frank Rieger. "A Closer Look at the Unidentified TeV Source HESS J1614—518." In HIGH ENERGY GAMMA-RAY ASTRONOMY: Proceedings of the 4th International Meeting on High Energy Gamma-Ray Astronomy. AIP, 2008. http://dx.doi.org/10.1063/1.3076650.

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Sakai, M., Y. Yajima, and H. Matsumoto. "Nature of the Unidentified TeV Source HESS J1614–518 Revealed by Suzaku and XMM-Newton Observations." In Proceedings of the KMI Inauguration Conference. WORLD SCIENTIFIC, 2013. http://dx.doi.org/10.1142/9789814412322_0052.

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Sakai, Michito, Yukie Yajima, and Hironori Matsumoto. "Nature of the unidentified TeV source HESS J1614-518 revealed by Suzaku and XMM-Newton observations." In SUZAKU 2011: Exploring the X-ray Universe: Suzaku and Beyond. AIP, 2012. http://dx.doi.org/10.1063/1.3696201.

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Beilicke, M. "Discovery of an unidentified TeV source in the field of view of PSR B1259-63 with H.E.S.S." In HIGH ENERGY GAMMA-RAY ASTRONOMY: 2nd International Symposium on High Energy Gamma-Ray Astronomy. AIP, 2005. http://dx.doi.org/10.1063/1.1878428.

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