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@ARTICLE{Acciari:452631,
author = {Acciari, V. A. and Ansoldi, S. and Antonelli, L. A. and
Engels, A. Arbet and Asano, K. and Baack, D. and Babic, A.
and Banerjee, B. and Baquero, A. and Barres de Almeida, U.
and Barrio, 0J. A. and BecerraGonzalez, J. and Bednarek, W.
and Bellizzi, L. and Bernardini, E. and Bernardos, M. and
Berti, A. and Besenrieder, J. and Bhattacharyya, W. and
Bigongiari, C. and Biland, A. and Blanch, O. and Bonnoli, G.
and Bosnjak, Z. and Busetto, G. and Carosi, R. and
Ceribella, G. and Cerruti, M. and Chai, Y. and Chilingarian,
A. and Cikota, S. and Colak, S. M. and Colombo, E. and
Contreras, J. L. and Cortina, J. and Covino, S. and D'Amico,
G. and D'Elia, V. and Da Vela, P. and Dazzi, F. and De
Angelis, A. and De Lotto, B. and Delfino, M. and Delgado, J.
and Delgado Mendez, C. and Depaoli, D. and Di Girolamo, T.
and Di Pierro, F. and Di Venere, L. and do Souto Espineira,
E. and Dominis Prester, D. and Donini, A. and Dorner, D. and
Doro, M. and Elsaesser, D. and Fallah Ramazani, V. and
Fattorini, A. and Ferrara, G. and Foffano, L. and Fonseca,
M. V. and Font, L. and Fruck, C. and Fukami, S. and ́opez,
R. J. Garcia L. and Garczarczyk, M. and Gasparyan, S. and
Gaug, M. and Giglietto, N. and Giordano, F. and Gliwny, P.
and Godinovic, N. and Green, D. and Hadasch, D. and Hahn, A.
and Heckmann, L. and Herrera, J. and Hoang, J. and Hrupec,
D. and Hutten, M. and Inada, T. and Inoue, S. and Ishio, K.
and Iwamura, Y. and Jouvin, L. and Kajiwara, Y. and
Karjalainen, M. and Kerszberg, D. and Kobayashi, Y. and
Kubo, H. and Kushida, J. and Lamastra, A. and Lelas, D. and
Leone, F. and Lindfors, E. and Lombardi, S. and Longo, F.
and Lopez, M. and Lopez-Coto, R. and Lopez-Oramas, A. and
Loporchio, S. and de Oliveira Fraga, B. Machado and Maggio,
C. and Majumdar, P. and Makariev, M. and Mallamaci, M. and
Maneva, G. and Manganaro, M. and Mannheim, K. and Maraschi,
L. and Mariotti, M. and Martinez, M. and Mazin, D. and
Mender, S. and Micanovic, S. and Miceli, D. and Miener, T.
and Minev, M. and Miranda, J. M. and Mirzoyan, R. and
Molina, E. and Moralejo, A. and Morcuende, D. and Moreno, V.
and Moretti, E. and Munar-Adrover, P. and Neustroev, V. and
Nigro, C. and Nilsson, K. and Ninci, D. and Nishijima, K.
and Noda, K. and Nozaki, S. and Ohtani, Y. and Oka, T. and
Otero-Santos, J. and Palatiello, M. and Paneque, D. and
Paoletti, R. and Paredes, J. M. and Pavletic, L. and Penil,
P. and Perennes, C. and Persic, M. and Prada Moroni, P. G.
and Prandini, E. and Priyadarshi, C. and Puljak, I. and
Rhode, W. and Ribo, M. and Rico, J. and Righi, C. and
Rugliancich, A. and Saha, L. and Sahakyan, N. and Saito, T.
and Sakurai, S. and Satalecka, K. and Schleicher, B. and
Schmidt, K. and Schweizer, T. and Sitarek, J. and Snidaric,
I. and Sobczynska, D. and Spolon, A. and Stamerra, A. and
Strom, D. and Strzys, M. and Suda, Y. and Suric, T. and
Takahashi, M. and Tavecchio, F. and Temnikov, P. and Terzic,
T. and Teshima, M. and Torres-Alba, N. and Tosti, L. and
Truzzi, S. and van Scherpenberg, J. and Vanzo, G. and
Vazquez Acosta, M. and Ventura, S. and Verguilov, V. and
Vigorito, C. F. and Vitale, V. and Vovk, I. and Will, M. and
Zaric, D.},
collaboration = {{MAGIC Collaboration}},
title = {{S}tudying the nature of the unidentified gamma-ray source
{HESS} {J}1841−055 with the {MAGIC} telescopes},
journal = {Monthly notices of the Royal Astronomical Society},
volume = {497},
number = {3},
issn = {1365-2966},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {PUBDB-2020-04788, arXiv:2007.09321},
pages = {3734 - 3745},
year = {2020},
note = {11 pages, 8 figures, 5 tables. Accepted in MNRAS},
abstract = {We investigate the physical nature and origin of the
gamma-ray emission from the extended source HESS J1841−055
observed at TeV and GeV energies. We observed HESS
J1841−055 at TeV energies for a total effective time of
43 h with the MAGIC telescopes, in 2012 and 2013.
Additionally, we analysed the GeV counterpart making use of
about 10 yr of Fermi-LAT data. Using both Fermi-LAT and
MAGIC, we study both the spectral and energy-dependent
morphology of the source for almost four decades of energy.
The origin of the gamma-ray emission from this region is
investigated using multiwaveband information on sources
present in this region, suggested to be associated with this
unidentified gamma-ray source. We find that the extended
emission at GeV–TeV energies is best described by more
than one source model. We also perform the first
energy-dependent analysis of the HESS J1841−055 region at
GeV–TeV. We find that the emission at lower energies comes
from a diffuse or extended component, while the major
contribution of gamma rays above 1 TeV arises from the
southern part of the source. Moreover, we find that a
significant curvature is present in the combined observed
spectrum of MAGIC and Fermi-LAT. The first multiwavelength
spectral energy distribution of this unidentified source
shows that the emission at GeV–TeV energies can be well
explained with both leptonic and hadronic models. For the
leptonic scenario, bremsstrahlung is the dominant emission
compared to inverse Compton. On the other hand, for the
hadronic model, gamma-ray resulting from the decay of
neutral pions $(π^0)$ can explain the observed spectrum.
The presence of dense molecular clouds overlapping with HESS
J1841−055 makes both bremsstrahlung and $π^0-decay$
processes the dominant emission mechanisms for the source.},
keywords = {gamma ray: emission (INSPIRE) / model: hadronic (INSPIRE) /
HESS (INSPIRE) / MAGIC (INSPIRE) / GLAST (INSPIRE) / energy
dependence (INSPIRE) / energy spectrum (INSPIRE) / pi
(INSPIRE) / bremsstrahlung (INSPIRE) / spectral (INSPIRE) /
curvature (INSPIRE) / cloud (INSPIRE) / 4/3 (INSPIRE) / ISM:
individual objects: HESS J1841−055 (autogen) / ISM:
supernova remnants (autogen) / gamma-rays: stars (autogen) /
radiation mechanisms: non-thermal (autogen) / pulsars:
general (autogen)},
cin = {ZEU-EXP/AT},
ddc = {520},
cid = {$I:(DE-H253)ZEU-EXP_AT-20120731$},
pnm = {613 - Matter and Radiation from the Universe (POF3-613)},
pid = {G:(DE-HGF)POF3-613},
experiment = {EXP:(DE-H253)MAGIC-20170101},
typ = {PUB:(DE-HGF)16},
eprint = {2007.09321},
howpublished = {arXiv:2007.09321},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2007.09321;\%\%$},
UT = {WOS:000577137200089},
doi = {10.1093/mnras/staa2135},
url = {https://bib-pubdb1.desy.de/record/452631},
}