Bibcode
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. Ch; 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, M.; 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.; Kuveždić, D.; Lelas, D.; Lindfors, E.; Lombardi, S.; Longo, F.; López, M.; Maggio, C.; Majumdar, P.; Makariev, M.; Maneva, G.; Manganaro, M.; Mannheim, K.; Maraschi, L.; Mariotti, M.; Martínez, M.; Masuda, S.; Mazin, D.; 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. et al.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Volume 485, Issue 1, p.356-366
Advertised on:
5
2019
Citations
7
Refereed citations
7
Description
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.
Related projects
Particle Astrophysics
The MAGIC Collaboration is integrated by 20 research institutes and university departments from Armenia, Bulgaria, Finland, Germany, Italy, Poland, Spain, Switzerland and USA. The collaboration comprises two 17m diameter telescopes, located at the Roque de los Muchachos Observatory, designed to measure the Cherenkov radiation associated with
Ramón
García López