2381/42425
H Abdallah
H
Abdallah
A Abramowski
A
Abramowski
F Aharonian
F
Aharonian
FA Benkhali
FA
Benkhali
EO Anguner
EO
Anguner
M Arakawa
M
Arakawa
M Arrieta
M
Arrieta
P Aubert
P
Aubert
M Backes
M
Backes
A Balzer
A
Balzer
M Barnard
M
Barnard
Y Becherini
Y
Becherini
JB Tjus
JB
Tjus
D Berge
D
Berge
S Bernhard
S
Bernhard
K Bernloehr
K
Bernloehr
R Blackwell
R
Blackwell
M Bottcher
M
Bottcher
C Boisson
C
Boisson
J Bolmont
J
Bolmont
S Bonnefoy
S
Bonnefoy
P Bordas
P
Bordas
J Bregeon
J
Bregeon
F Brun
F
Brun
P Brun
P
Brun
M Bryan
M
Bryan
M Buechele
M
Buechele
T Bulik
T
Bulik
M Capasso
M
Capasso
S Caroff
S
Caroff
A Carosi
A
Carosi
J Carr
J
Carr
S Casanova
S
Casanova
M Cerruti
M
Cerruti
N Chakraborty
N
Chakraborty
RCG Chaves
RCG
Chaves
A Chen
A
Chen
J Chevalier
J
Chevalier
S Colafrancesco
S
Colafrancesco
B Condon
B
Condon
J Conrad
J
Conrad
ID Davids
ID
Davids
J Decock
J
Decock
C Deil
C
Deil
J Devin
J
Devin
P Dewilt
P
Dewilt
L Dirson
L
Dirson
A Djannati-Atai
A
Djannati-Atai
W Domainko
W
Domainko
A Donath
A
Donath
LO Drury
LO
Drury
K Dutson
K
Dutson
J Dyks
J
Dyks
T Edwards
T
Edwards
K Egberts
K
Egberts
P Eger
P
Eger
G Emery
G
Emery
J-P Ernenwein
J-P
Ernenwein
S Eschbach
S
Eschbach
C Farnier
C
Farnier
S Fegan
S
Fegan
M Fernandes
M
Fernandes
A Fiasson
A
Fiasson
G Fontaine
G
Fontaine
A Foerster
A
Foerster
S Funk
S
Funk
M Fuessling
M
Fuessling
S Gabici
S
Gabici
YA Gallant
YA
Gallant
T Garrigoux
T
Garrigoux
F Gate
F
Gate
G Giavitto
G
Giavitto
B Giebels
B
Giebels
D Glawion
D
Glawion
JF Glicenstein
JF
Glicenstein
D Gottschall
D
Gottschall
M-H Grondin
M-H
Grondin
J Hahn
J
Hahn
M Haupt
M
Haupt
J Hawkes
J
Hawkes
G Heinzelmann
G
Heinzelmann
G Henri
G
Henri
G Hermann
G
Hermann
JA Hinton
JA
Hinton
W Hofmann
W
Hofmann
C Hoischen
C
Hoischen
TL Holch
TL
Holch
M Holler
M
Holler
D Horns
D
Horns
A Ivascenko
A
Ivascenko
H Iwasaki
H
Iwasaki
A Jacholkowska
A
Jacholkowska
M Jamrozy
M
Jamrozy
M Janiak
M
Janiak
D Jankowsky
D
Jankowsky
F Jankowsky
F
Jankowsky
M Jingo
M
Jingo
L Jouvin
L
Jouvin
I Jung-Richardt
I
Jung-Richardt
MA Kastendieck
MA
Kastendieck
K Katarzynski
K
Katarzynski
M Katsuragawa
M
Katsuragawa
U Katz
U
Katz
D Kerszberg
D
Kerszberg
D Khangulyan
D
Khangulyan
B Khelifi
B
Khelifi
J King
J
King
S Klepser
S
Klepser
D Klochkov
D
Klochkov
W Kluzniak
W
Kluzniak
N Komin
N
Komin
K Kosack
K
Kosack
S Krakau
S
Krakau
M Kraus
M
Kraus
PP Krueger
PP
Krueger
H Laffon
H
Laffon
G Lamanna
G
Lamanna
J Lau
J
Lau
J-P Lees
J-P
Lees
J Lefaucheur
J
Lefaucheur
A Lemiere
A
Lemiere
M Lemoine-Goumard
M
Lemoine-Goumard
J-P Lenain
J-P
Lenain
E Leser
E
Leser
R Liu
R
Liu
T Lohse
T
Lohse
M Lorentz
M
Lorentz
R Lopez-Coto
R
Lopez-Coto
I Lypova
I
Lypova
D Malyshev
D
Malyshev
V Marandon
V
Marandon
A Marcowith
A
Marcowith
C Mariaud
C
Mariaud
R Marx
R
Marx
G Maurin
G
Maurin
N Maxted
N
Maxted
M Mayer
M
Mayer
PJ Meintjes
PJ
Meintjes
M Meyer
M
Meyer
AMW Mitchell
AMW
Mitchell
R Moderski
R
Moderski
M Mohamed
M
Mohamed
L Mohrmann
L
Mohrmann
K Mora
K
Mora
E Moulin
E
Moulin
T Murach
T
Murach
S Nakashima
S
Nakashima
M de Naurois
M
de Naurois
H Ndiyavala
H
Ndiyavala
F Niederwanger
F
Niederwanger
J Niemiec
J
Niemiec
L Oakes
L
Oakes
P O'Brien
P
O'Brien
H Odaka
H
Odaka
S Ohm
S
Ohm
M Ostrowski
M
Ostrowski
I Oya
I
Oya
M Padovani
M
Padovani
M Panter
M
Panter
RD Parsons
RD
Parsons
NW Pekeur
NW
Pekeur
G Pelletier
G
Pelletier
C Perennes
C
Perennes
P-O Petrucci
P-O
Petrucci
B Peyaud
B
Peyaud
Q Piel
Q
Piel
S Pita
S
Pita
V Poireau
V
Poireau
H Poon
H
Poon
D Prokhorov
D
Prokhorov
H Prokoph
H
Prokoph
G Puelhofer
G
Puelhofer
M Punch
M
Punch
A Quirrenbach
A
Quirrenbach
S Raab
S
Raab
R Rauth
R
Rauth
A Reimer
A
Reimer
O Reimer
O
Reimer
M Renaud
M
Renaud
R De Los Reyes
R
De Los Reyes
F Rieger
F
Rieger
L Rinchiuso
L
Rinchiuso
C Romoli
C
Romoli
G Rowell
G
Rowell
B Rudak
B
Rudak
CB Rulten
CB
Rulten
V Sahakian
V
Sahakian
S Saito
S
Saito
DA Sanchez
DA
Sanchez
A Santangelo
A
Santangelo
M Sasaki
M
Sasaki
M Schandri
M
Schandri
R Schlickeiser
R
Schlickeiser
F Schussler
F
Schussler
A Schulz
A
Schulz
U Schwanke
U
Schwanke
S Schwemmer
S
Schwemmer
M Seglar-Arroyo
M
Seglar-Arroyo
M Settimo
M
Settimo
AS Seyffert
AS
Seyffert
N Shafi
N
Shafi
I Shilon
I
Shilon
K Shiningayamwe
K
Shiningayamwe
R Simoni
R
Simoni
H Sol
H
Sol
F Spanier
F
Spanier
M Spir-Jacob
M
Spir-Jacob
L Stawarz
L
Stawarz
R Steenkamp
R
Steenkamp
C Stegmann
C
Stegmann
C Steppa
C
Steppa
I Sushch
I
Sushch
T Takahashi
T
Takahashi
J-P Tavernet
J-P
Tavernet
T Tavernier
T
Tavernier
AM Taylor
AM
Taylor
R Terrier
R
Terrier
L Tibaldo
L
Tibaldo
D Tiziani
D
Tiziani
M Tluczykont
M
Tluczykont
C Trichard
C
Trichard
M Tsirou
M
Tsirou
N Tsuji
N
Tsuji
R Tuffs
R
Tuffs
Y Uchiyama
Y
Uchiyama
J van der Walt
J
van der Walt
C van Eldik
C
van Eldik
C van Rensburg
C
van Rensburg
B van Soelen
B
van Soelen
G Vasileiadis
G
Vasileiadis
J Veh
J
Veh
C Venter
C
Venter
A Viana
A
Viana
P Vincent
P
Vincent
J Vink
J
Vink
F Voisin
F
Voisin
HJ Voelk
HJ
Voelk
T Vuillaume
T
Vuillaume
Z Wadiasingh
Z
Wadiasingh
SJ Wagner
SJ
Wagner
P Wagner
P
Wagner
RM Wagner
RM
Wagner
R White
R
White
A Wierzcholska
A
Wierzcholska
P Willmann
P
Willmann
A Woernlein
A
Woernlein
D Wouters
D
Wouters
R Yang
R
Yang
D Zaborov
D
Zaborov
M Zacharias
M
Zacharias
R Zanin
R
Zanin
AA Zdziarski
AA
Zdziarski
A Zech
A
Zech
F Zefi
F
Zefi
A Ziegler
A
Ziegler
J Zorn
J
Zorn
N Zywucka
N
Zywucka
Search for gamma-Ray Line Signals from Dark Matter Annihilations in the Inner Galactic Halo from 10 Years of Observations with HESS
University of Leicester
2018
Science & Technology
Physical Sciences
Physics, Multidisciplinary
Physics
CANDIDATES
MILKY
2018-06-07 08:18:56
Journal contribution
https://figshare.le.ac.uk/articles/journal_contribution/Search_for_gamma-Ray_Line_Signals_from_Dark_Matter_Annihilations_in_the_Inner_Galactic_Halo_from_10_Years_of_Observations_with_HESS/10229777
Spectral lines are among the most powerful signatures for dark matter (DM) annihilation searches in
very-high-energy γ rays. The central region of the Milky Way halo is one of the most promising targets
given its large amount of DM and proximity to Earth. We report on a search for a monoenergetic spectral
line from self-annihilations of DM particles in the energy range from 300 GeV to 70 TeV using a twodimensional
maximum likelihood method taking advantage of both the spectral and spatial features of the
signal versus background. The analysis makes use of Galactic center observations accumulated over ten
years (2004–2014) with the H.E.S.S. array of ground-based Cherenkov telescopes. No significant γ-ray
excess above the background is found. We derive upper limits on the annihilation cross section hσvi for
monoenergetic DM lines at the level of 4 × 10−28 cm3 s−1 at 1 TeV, assuming an Einasto DM profile for the
Milky Way halo. For a DM mass of 1 TeV, they improve over the previous ones by a factor of 6. The present
constraints are the strongest obtained so far for DM particles in the mass range 300 GeV–70 TeV. Groundbased
γ-ray observations have reached sufficient sensitivity to explore relevant velocity-averaged cross
sections for DM annihilation into two γ-ray photons at the level expected from the thermal relic density for
TeV DM particles.