MAGIC and Fermi-LAT gamma-ray results on unassociated HAWC sources
- M. L. Ahnen,
- S. Ansoldi,
- L. A. Antonelli,
- C. Arcaro,
- D. Baack,
- A. Babić
- Swiss Federal Institute of Technology Zurich,
- The University of Tokyo,
- University of Udine,
- National Institute for Astrophysics,
- University of Padua,
- TU Dortmund University
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FWCI
0.54
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Author count
340
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55
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Citations
10
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.
Publication Information
Output type
Research Output:
Contribution to journal
Article
Peer-reviewOriginal language
EnglishPages from-to (Number of pages)
Pages 356-366 (11 pages)Journal (Volume, Issue Number)
Monthly Notices of the Royal Astronomical Society (Volume 485, Issue 1)Publication milestones
- Published - 01/05/2019
Publication status
Published - 01/05/2019
ISSN
0035-8711Publication IDs
- Scopus: 85072245247
Funding Details
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.
FundersFunding numbers
847 Italian Ministry of Education, University and Research 848
-Coordinación de la Investigación Científica de la Universidad Michoacana
-Institute of Geophysics
-Planetary Physics
-Polish Science Centre
DEC-2014/13/B/ST9/945
Spanish Centro de Excelencia "Severo Ochoa
MDM-2014-0369, SEV-2015-0548, SEV-2012-0234
US Department of Energy Office of High-Energy Physics
-University of Rijeka
13.12.1.3.02
University of Wisconsin Alumni Research Foundation
-VIEP-BUAP
-NSF
-USDOE
FIRB-2012-RBFR12PM1F, DE-AC02- 76SF00515
USDOE
-LDRD
-LANL
-Royal Society
180385
Royal Society
-DFG
745/N-HESS-MAGIC/2010/0, SFB876/C3
DFG
-KAKEN
17H06131
KAKEN
-MEXT
-SNF
-SNSA
-BMBF
-CONACYT
239762, 271051, 254964, 258865, 281653, 260378, 132197, 179588, 232656, 243290, 271737
CONACYT
-MINECO
AYA2016-76012-C3-1-P, FPA2012-36668, FPA2015-69210-C6-6-R, AYA2015-71042-P, CSD2009-00064, FPA2015-68378-P, FPA2015-69210-C6-2-R, ESP2015-71662-C2-2-P, FPA2015-69818-P, FPA2015-69210-C6-4-R
MINECO
-MIUR
-ASI
-INFN
-JAXA
-Knut och Alice Wallenbergs Stiftelse
-VR
-HRZZ
09/176
HRZZ
-INAF
-DGAPA, UNAM
IA102917, IA102715, IN111716-3, 109916, IN111315, IG100317, IN112218
DGAPA, UNAM
-CEA
-KEK
-ERDF
-IN2P3
-