Unveiling extended gamma-ray emission around HESS J1813-178

F Aharonian; F. Ait Benkhali; J Aschersleben; H Ashkar; M Backes; A Baktash; V. Barbosa Martins; J Barnard; R Batzofin; Y Becherini; D Berge; K Bernlöhr; B Bi; M Böttcher; C Boisson; J Bolmont; M de Bony de Lavergne; J Borowska; M Bouyahiaoui; M Breuhaus; R Brose; F Brun; B Bruno; T Bulik; C Burger-Scheidlin; S Caroff; S Casanova; R Cecil; J Celic; M Cerruti; P Chambery; T Chand; A Chen; J Chibueze; O Chibueze; G Cotter; J. Damascene Mbarubucyeye; A Djannati-Ataï; A Dmytriiev; V Doroshenko; S Einecke; J.-P Ernenwein; K Feijen; M Filipovic; G Fontaine; M Füßling; S Funk; S Gabici; Y.A Gallant; S Ghafourizadeh; G Giavitto; D Glawion; J.F Glicenstein; P Goswami; G Grolleron; M.-H Grondin; J.A Hinton; W Hofmann; T.L Holch; M Holler; M Jamrozy; F Jankowsky; V Joshi; I Jung-Richardt; K Katarzynski; R Khatoon; B Khélifi; S Klepser; W Kluzniak; Nu Komin; K Kosack; D Kostunin; A Kundu; R.G Lang; S Le Stum; F Leitl; A Lemière; M Lemoine-Goumard; J.-P Lenain; F Leuschner; J Mackey; D Malyshev; V Marandon; P Marinos; G Martí-Devesa; R Marx; A Mehta; A Mitchell; R Moderski; L Mohrmann; A Montanari; E Moulin; T Murach; M de Naurois; J Niemiec; A. Priyana Noel; P O'Brien; S Ohm; L Olivera-Nieto; E de Ona Wilhelmi; M Ostrowski; S Panny; M Panter; R.D Parsons; D.A Prokhorov; G Pühlhofer; M Punch; A Quirrenbach; M Regeard; P Reichherzer; A Reimer; O Reimer; H Ren; M Renaud; B Reville; F Rieger; G Roellinghoff; B Rudak; V Sahakian; H Salzmann; M Sasaki; F Schüssler; H.M Schutte; J.N.S Shapopi; A Specovius; S Spencer; R Steenkamp; S Steinmassl; C Steppa; I Sushch; H Suzuki; T Takahashi; T Tanaka; R Terrier; M Tluczykont; N Tsuji; T Unbehaun; C van Eldik; M Vecchi; J Veh; C Venter; J Vink; T Wach; S.J Wagner; A Wierzcholska; M Zacharias; D Zargaryan; A.A Zdziarski; S Zouari; N Zywucka

doi:10.1051/0004-6361/202348374

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Unveiling extended gamma-ray emission around HESS J1813-178

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Unveiling extended gamma-ray emission around HESS J1813-178

F Aharonian, F. Ait Benkhali, J Aschersleben, H Ashkar, M Backes, A Baktash, V. Barbosa Martins, J Barnard, R Batzofin, Y Becherini, …

Astron.Astrophys, Vol.686

2024

DOI: https://doi.org/10.1051/0004-6361/202348374

Abstract

HESS J1813$-$178 is a very-high-energy $\gamma$-ray source spatially coincident with the young and energetic pulsar PSR J1813$-$1749 and thought to be associated with its pulsar wind nebula (PWN). Recently, evidence for extended high-energy emission in the vicinity of the pulsar has been revealed in the Fermi Large Area Telescope (LAT) data. This motivates revisiting the HESS J1813$-$178 region, taking advantage of improved analysis methods and an extended data set. Using data taken by the High Energy Stereoscopic System (H.E.S.S.) experiment and the Fermi-LAT, we aim to describe the $\gamma$-ray emission in the region with a consistent model, to provide insights into its origin. We performed a likelihood-based analysis on 32 hours of H.E.S.S. data and 12 years of Fermi-LAT data and fit a spectro-morphological model to the combined datasets. These results allowed us to develop a physical model for the origin of the observed $\gamma$-ray emission in the region. In addition to the compact very-high-energy $\gamma$-ray emission centered on the pulsar, we find a significant yet previously undetected component along the Galactic plane. With Fermi-LAT data, we confirm extended high-energy emission consistent with the position and elongation of the extended emission observed with H.E.S.S. These results establish a consistent description of the emission in the region from GeV energies to several tens of TeV. This study suggests that HESS J1813$-$178 is associated with a $\gamma$-ray PWN powered by PSR J1813$-$1749. A possible origin of the extended emission component is inverse Compton emission from electrons and positrons that have escaped the confines of the pulsar and form a halo around the PWN.

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Title: Unveiling extended gamma-ray emission around HESS J1813-178
Creators - without role: F Aharonian
F. Ait Benkhali
J Aschersleben
H Ashkar - Laboratoire Leprince-Ringuet
M Backes
A Baktash
V. Barbosa Martins
J Barnard - University of the Free State
R Batzofin - University of Potsdam
Y Becherini - Université Paris Cité
D Berge - Humboldt-Universität zu Berlin
K Bernlöhr
B Bi - University of Tübingen
M Böttcher
C Boisson - Laboratoire Univers et Théories
J Bolmont - Laboratoire de Physique Nucléaire et de Hautes Énergies
M de Bony de Lavergne - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
J Borowska - Humboldt-Universität zu Berlin
M Bouyahiaoui
M Breuhaus
R Brose
F Brun - Institut de Recherche sur les Lois Fondamentales de l'Univers
B Bruno - Friedrich-Alexander-Universität Erlangen-Nürnberg
T Bulik - University of Warsaw
C Burger-Scheidlin
S Caroff - Laboratoire d’Annecy de Physique des Particules
S Casanova - Institute of Nuclear Physics, Polish Academy of Sciences
R Cecil
J Celic - Friedrich-Alexander-Universität Erlangen-Nürnberg
M Cerruti - Laboratoire AstroParticule et Cosmologie
P Chambery - Laboratoire de Physique des deux infinis Bordeaux
T Chand
A Chen - University of the Witwatersrand
J Chibueze
O Chibueze
G Cotter - University of Oxford
J. Damascene Mbarubucyeye
A Djannati-Ataï - AstroParticule et Cosmologie
A Dmytriiev
V Doroshenko - University of Tübingen
S Einecke - University of Adelaide
J.-P Ernenwein - Centre de physique des particules de Marseille
K Feijen - Université Paris Cité
M Filipovic - Western Sydney University
G Fontaine - Laboratoire Leprince-Ringuet
M Füßling
S Funk - Friedrich-Alexander-Universität Erlangen-Nürnberg
S Gabici - Université Paris Cité
Y.A Gallant - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
S Ghafourizadeh
G Giavitto
D Glawion - Friedrich-Alexander-Universität Erlangen-Nürnberg
J.F Glicenstein - CEA Paris-Saclay
P Goswami - Université Paris Cité
G Grolleron - Laboratoire de Physique Nucléaire et de Hautes Énergies
M.-H Grondin - Laboratoire de Physique des deux infinis Bordeaux
J.A Hinton
W Hofmann
T.L Holch
M Holler - Universität Innsbruck
M Jamrozy - Jagiellonian University
F Jankowsky
V Joshi - Friedrich-Alexander-Universität Erlangen-Nürnberg
I Jung-Richardt
K Katarzynski - Nicolaus Copernicus University
R Khatoon
B Khélifi - Université Paris Cité
S Klepser
W Kluzniak - Nicolaus Copernicus Astronomical Center
Nu Komin - University of the Witwatersrand
K Kosack - Institut de Recherche sur les Lois Fondamentales de l'Univers
D Kostunin
A Kundu
R.G Lang
S Le Stum - Centre de physique des particules de Marseille
F Leitl
A Lemière - Université Paris Cité
M Lemoine-Goumard - Laboratoire de Physique des deux infinis Bordeaux
J.-P Lenain - Laboratoire de Physique Nucléaire et de Hautes Énergies
F Leuschner - University of Tübingen
J Mackey
D Malyshev
D Malyshev
V Marandon - Institut de Recherche sur les Lois Fondamentales de l'Univers
P Marinos - University of Adelaide
G Martí-Devesa
R Marx
A Mehta
A Mitchell
R Moderski
L Mohrmann
A Montanari
E Moulin - Institut de Recherche sur les Lois Fondamentales de l'Univers
T Murach
M de Naurois - Laboratoire Leprince-Ringuet
J Niemiec - Institute of Nuclear Physics, Polish Academy of Sciences
A. Priyana Noel
P O'Brien
S Ohm
L Olivera-Nieto
E de Ona Wilhelmi
M Ostrowski
S Panny
M Panter
R.D Parsons - Humboldt-Universität zu Berlin
D.A Prokhorov - University of Amsterdam
G Pühlhofer
M Punch - Université Paris Cité
A Quirrenbach
M Regeard - Université Paris Cité
P Reichherzer - Institut de Recherche sur les Lois Fondamentales de l'Univers
A Reimer
O Reimer
H Ren
M Renaud - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
B Reville
F Rieger
G Roellinghoff
B Rudak
V Sahakian
H Salzmann
M Sasaki
F Schüssler - Institut de Recherches sur les lois Fondamentales de l'Univers
H.M Schutte
J.N.S Shapopi
A Specovius
S Spencer
R Steenkamp
S Steinmassl
C Steppa - University of Potsdam
I Sushch
H Suzuki - Konan University
T Takahashi - The University of Tokyo
T Tanaka
R Terrier - Université Paris Cité
M Tluczykont
N Tsuji - Nippon Soken
T Unbehaun
C van Eldik
M Vecchi
J Veh
C Venter
J Vink
T Wach
S.J Wagner
A Wierzcholska
M Zacharias
D Zargaryan
A.A Zdziarski
S Zouari - Laboratoire AstroParticule et Cosmologie
N Zywucka
Publication Details: Astron.Astrophys, Vol.686
Identifiers: 9940689209311
Academic Unit: Laboratoire Univers et Particules de Montpellier - LUPM
Language: English
Resource Type: Journal article
Local Fields: hal-04537734