Very-high-energy gamma-ray emission from the direction of the Galactic globular cluster Terzan 5
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10104591" target="_blank" >RIV/00216208:11320/11:10104591 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/0004-6361/201117171" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201117171</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201117171" target="_blank" >10.1051/0004-6361/201117171</a>
Alternative languages
Result language
angličtina
Original language name
Very-high-energy gamma-ray emission from the direction of the Galactic globular cluster Terzan 5
Original language description
The HESS very-high-energy (VHE, E } 0.1 TeV) gamma-ray telescope system has discovered a new source, HESS J1747-248. The measured integral flux is (1.2 +/- 0.3) x 10(-12) cm(-2) s(-1) above 440 GeV for a power-law photon spectral index of 2.5 +/- 0.3(stat) +/- 0.2(sys). The VHE gamma-ray source is located in the close vicinity of the Galactic globular cluster Terzan 5 and extends beyond the HESS point spread function (0.07 degrees). The probability of a chance coincidence with Terzan 5 and an unrelatedVHE source is quite low (similar to 10(-4)). With the largest population of identified millisecond pulsars (msPSRs), a very high core stellar density and the brightest GeV range flux as measured by Fermi-LAT, Terzan 5 stands out among Galactic globular clusters. The properties of the VHE source are briefly discussed in the context of potential emission mechanisms, notably in relation to msPSRs. Interpretation of the available data accommodates several possible origins for this VHE gamma-
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy and Astrophysics
ISSN
0004-6361
e-ISSN
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Volume of the periodical
531
Issue of the periodical within the volume
1
Country of publishing house
DE - GERMANY
Number of pages
5
Pages from-to
"L18", 1-5
UT code for WoS article
000293017700184
EID of the result in the Scopus database
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