Title
MAGIC and Fermi-LAT gamma-ray results on unassociated HAWC sources
Date Issued
01 May 2019
Access level
open access
Resource Type
journal article
Author(s)
Ahnen M.L.
Ansoldi S.
Antonelli L.A.
Arcaro C.
Baack D.
Babić A.
Banerjee B.
Bangale P.
Barres De Almeida U.
Barrio J.A.
Becerra González J.
Bednarek W.
Bernardini E.
Berse R.C.
Berti A.
Bhattacharyya W.
Biland A.
Blanch O.
Bonnoli G.
Carosi R.
Carosi A.
Ceribella G.
Chatterjee A.
Colak S.M.
Colin P.
Colombo E.
Contreras J.L.
Cortina J.
Covino S.
Cumani P.
Da Vela P.
Dazzi F.
De Angelis A.
De Lotto B.
Delfino
Delgado J.
Di Pierro F.
Domínguez A.
Dominis Prester D.
Dorner D.
Doro M.
Einecke S.
Elsaesser D.
Fallah Ramazani V.
Fernández-Barral A.
Fidalgo D.
Fonseca M.V.
Font L.
Fruck C.
Galindo D.
García López R.J.
Garczarczyk M.
Gaug M.
Giammaria P.
Godinović N.
Gora D.
Guberman D.
Hadasch D.
Hahn A.
Hassan T.
Hayashida M.
Herrera J.
Hose J.
Hrupec D.
Ishio K.
Konno Y.
Kubo H.
Kushida J.
Kuvedić D.
Lelas D.
Lindfors E.
Lombardi S.
Longo
López M.
Maggio C.
Majumdar P.
Makariev M.
Maneva G.
Manganaro M.
Mannheim K.
Maraschi L.
Mariotti M.
Martínez M.
Masuda S.
Mazin
Mielke K.
Minev M.
Miranda J.M.
Mirzoyan R.
Moralejo A.
Moreno V.
Moretti E.
Nagayoshi T.
Neustroev V.
Niedzwiecki A.
Nievas Rosillo M.
Nigro C.
Nilsson K.
Ninci D.
Nishijima K.
Publisher(s)
Oxford University Press
Abstract
The HAWC Collaboration released the 2HWC catalogue of TeV sources, in which 19 show no association with any known high-energy (HE; E ≳ 10 GeV) or very-high-energy (VHE; E ≳ 300 GeV) sources. This catalogue motivated follow-up studies by both the Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) and Fermi-LAT (Large Area Telescope) observatories with the aim of investigating gamma-ray emission over a broad energy band. In this paper, we report the results from the first joint work between High Altitude Water Cherenkov (HAWC), MAGIC, and Fermi-LAT on three unassociated HAWC sources: 2HWC J2006+341, 2HWC J1907+084∗, and 2HWC J1852+013∗. Although no significant detection was found in the HE and VHE regimes, this investigation shows that a minimum 1° extension (at 95 per cent confidence level) and harder spectrum in the GeV than the one extrapolated from HAWC results are required in the case of 2HWC J1852+013∗, whilst a simply minimum extension of 0.16° (at 95 per cent confidence level) can already explain the scenario proposed by HAWC for the remaining sources. Moreover, the hypothesis that these sources are pulsar wind nebulae is also investigated in detail.
Start page
356
End page
366
Volume
485
Issue
1
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Astronomía
Subjects
Scopus EID
2-s2.0-85072245247
Source
Monthly Notices of the Royal Astronomical Society
ISSN of the container
00358711
Sponsor(s)
The Fermi-LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States, the Commissariat à l’Energie Atomique and the Centre National de la Recherche Scientifique/Institut National de Physique Nucléaire et de Physique des Particules in France, the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish Research Council and the Swedish National Space Board in Sweden. Additional support for science analysis during the operations phase is greatefully acknowledged from the Istituto Nazionale di Astrofisica in Italy and the Centre National d’Etudes Spatiales in France. This work is performed in part under DOE Contract DE-AC02- 76SF00515. MR is funded by contract FIRB-2012-RBFR12PM1F from the 847 Italian Ministry of Education, University and Research 848 (MIUR).
The HAWC Collaboration acknowledges the support from the US National Science Foundation (NSF) the US Department of Energy Office of High-Energy Physics; the Laboratory Directed Research and Development (LDRD) programme of Los Alamos National Laboratory; Consejo Nacional de Ciencia y Tecnología (CONA-CyT), México (grants 271051, 232656, 260378, 179588, 239762, 254964, 271737, 258865, 243290, 132197, 281653)(Cátedras 873, 1563), Laboratorio Nacional HAWC de rayos gamma; L’OREAL Fellowship for Women in Science 2014; Red HAWC, México; DGAPA-UNAM (grants IG100317, IN111315, IN111716-3, IA102715, 109916, IA102917, IN112218); VIEP-BUAP; PIFI 2012, 2013, PROFOCIE 2014, 2015; the University of Wisconsin Alumni Research Foundation; the Institute of Geophysics, Planetary Physics, and Signatures at Los Alamos National Laboratory; Polish Science Centre grant DEC-2014/13/B/ST9/945; Coordinación de la Investigación Científica de la Universidad Michoacana; Royal Society – Newton Advanced Fellowship 180385. The authors thank to Scott Delay, Luciano Díaz, and Eduardo Murrieta for technical support.
The MAGIC Collaboration would like to thank the Instituto de Astrofísica de Canarias for the excellent working conditions at the Observatorio del Roque de los Muchachos in La Palma. The financial support of the German BMBF and MPG, the Italian INFN and INAF, the Swiss National Fund SNF, the ERDF under the Spanish MINECO (FPA2015-69818-P, FPA2012-36668, FPA2015-68378-P, FPA2015-69210-C6-2-R, FPA2015-69210-C6-4-R, FPA2015-69210-C6-6-R, AYA2015-71042-P, AYA2016-76012-C3-1-P, ESP2015-71662-C2-2-P, CSD2009-00064), and the Japanese JSPS and MEXT is gratefully acknowledged. This work was also supported by the Spanish Centro de Excelencia ‘Severo Ochoa’ SEV-2012-0234 and SEV-2015-0548, and Unidad de Ex-celencia ‘María de Maeztu’ MDM-2014-0369, by the Croatian Science Foundation (HrZZ) Project 09/176 and the University of Rijeka Project 13.12.1.3.02, by the DFG Collaborative Research Centers SFB823/C4 and SFB876/C3, and by the Polish MNiSzW grant 745/N-HESS-MAGIC/2010/0.
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