Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/102768
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: H.E.S.S. limits on linelike dark matter signatures in the 100 GeV to 2 TeV energy range close to the Galactic Center
Author: Abdalla, H.
Abramowski, A.
Aharonian, F.
Ait Benkhali, F.
Akhperjanian, A.
Andersson, T.
Angüner, E.
Arrieta, M.
Aubert, P.
Backes, M.
Balzer, A.
Barnard, M.
Becherini, Y.
Becker Tjus, J.
Berge, D.
Bernhard, S.
Bernlöhr, K.
Birsin, E.
Blackwell, R.
Böttcher, M.
et al.
Citation: Physical Review Letters, 2016; 117(15):151302-1-151302-7
Publisher: American Physical Society
Issue Date: 2016
ISSN: 0031-9007
1079-7114
Statement of
Responsibility: 
H. Abdalla ... R. Blackwell ... P. deWilt ... J. Hawkes ... J. Lau ... G. Rowell ... F. Voisin ... et al. (H.E.S.S. Collaboration)
Abstract: A search for dark matter linelike signals iss performed in the vicinity of the Galactic Center by the H.E.S.S. experiment on observational data taken in 2014. An unbinned likelihood analysis iss developed to improve the sensitivity to linelike signals. The upgraded analysis along with newer data extend the energy coverage of the previous measurement down to 100 GeV. The 18 h of data collected with the H.E.S.S. array allow one to rule out at 95% C.L. the presence of a 130 GeV line (at l=-1.5°, b=0° and for a dark matter profile centered at this location) previously reported in Fermi-LAT data. This new analysis overlaps significantly in energy with previous Fermi-LAT and H.E.S.S. RESULTS: No significant excess associated with dark matter annihilations was found in the energy range of 100 GeV to 2 TeV and upper limits on the gamma-ray flux and the velocity weighted annihilation cross section are derived adopting an Einasto dark matter halo profile. Expected limits for present and future large statistics H.E.S.S. observations are also given.
Keywords: H.E.S.S. Collaboration
Description: Published 7 October 2016
Rights: © 2016 American Physical Society
RMID: 0030056778
DOI: 10.1103/PhysRevLett.117.151302
Appears in Collections:IPAS publications

Files in This Item:
File Description SizeFormat 
hdl_102768.pdfPublished version1.32 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.