Fermi gamma-ray imaging of a radio galaxy.
The Fermi Gamma-ray Space Telescope has detected the gamma-ray glow emanating from the giant radio lobes of the radio galaxy Centaurus A. The resolved gamma-ray image shows the lobes clearly separated from the central active source. In contrast to all other active galaxies detected so far in high-energy gamma-rays, the lobe flux constitutes a considerable portion (greater than one-half) of the total source emission. The gamma-ray emission from the lobes is interpreted as inverse Compton-scattered relic radiation from the cosmic microwave background, with additional contribution at higher energies from the infrared-to-optical extragalactic background light. These measurements provide gamma-ray constraints on the magnetic field and particle energy content in radio galaxy lobes, as well as a promising method to probe the cosmic relic photon fields.
Abdo
A A
AA
Ackermann
M
M
Ajello
M
M
Atwood
W B
WB
Baldini
L
L
Ballet
J
J
Barbiellini
G
G
Bastieri
D
D
Baughman
B M
BM
Bechtol
K
K
Bellazzini
R
R
Berenji
B
B
Blandford
R D
RD
Bloom
E D
ED
Bonamente
E
E
Borgland
A W
AW
Bregeon
J
J
Brez
A
A
Brigida
M
M
Bruel
P
P
Burnett
T H
TH
Buson
S
S
Caliandro
G A
GA
Cameron
R A
RA
Caraveo
P A
PA
Casandjian
J M
JM
Cavazzuti
E
E
Cecchi
C
C
Celik
O
O
Chekhtman
A
A
Cheung
C C
CC
Chiang
J
J
Ciprini
S
S
Claus
R
R
Cohen-Tanugi
J
J
Colafrancesco
S
S
Cominsky
L R
LR
Conrad
J
J
Costamante
L
L
Cutini
S
S
Davis
D S
DS
Dermer
C D
CD
de Angelis
A
A
de Palma
F
F
Digel
S W
SW
do Couto e Silva
E
E
Drell
P S
PS
Dubois
R
R
Dumora
D
D
Farnier
C
C
Favuzzi
C
C
Fegan
S J
SJ
Finke
J
J
Focke
W B
WB
Fortin
P
P
Fukazawa
Y
Y
Funk
S
S
Fusco
P
P
Gargano
F
F
Gasparrini
D
D
Gehrels
N
N
Georganopoulos
M
M
Germani
S
S
Giebels
B
B
Giglietto
N
N
Giordano
F
F
Giroletti
M
M
Glanzman
T
T
Godfrey
G
G
Grenier
I A
IA
Grove
J E
JE
Guillemot
L
L
Guiriec
S
S
Hanabata
Y
Y
Harding
A K
AK
Hayashida
M
M
Hays
E
E
Hughes
R E
RE
Jackson
M S
MS
Jóhannesson
G
G
Johnson
A S
AS
Johnson
T J
TJ
Johnson
W N
WN
Kamae
T
T
Katagiri
H
H
Kataoka
J
J
Kawai
N
N
Kerr
M
M
Knödlseder
J
J
Kocian
M L
ML
Kuss
M
M
Lande
J
J
Latronico
L
L
Lemoine-Goumard
M
M
Longo
F
F
Loparco
F
F
Lott
B
B
Lovellette
M N
MN
Lubrano
P
P
Madejski
G M
GM
Makeev
A
A
Mazziotta
M N
MN
McConville
W
W
McEnery
J E
JE
Meurer
C
C
Michelson
P F
PF
Mitthumsiri
W
W
Mizuno
T
T
Moiseev
A A
AA
Monte
C
C
Monzani
M E
ME
Morselli
A
A
Moskalenko
I V
IV
Murgia
S
S
Nolan
P L
PL
Norris
J P
JP
Nuss
E
E
Ohsugi
T
T
Omodei
N
N
Orlando
E
E
Ormes
J F
JF
Paneque
D
D
Parent
D
D
Pelassa
V
V
Pepe
M
M
Pesce-Rollins
M
M
Piron
F
F
Porter
T A
TA
Rainò
S
S
Rando
R
R
Razzano
M
M
Razzaque
S
S
Reimer
A
A
Reimer
O
O
Reposeur
T
T
Ritz
S
S
Rochester
L S
LS
Rodriguez
A Y
AY
Romani
R W
RW
Roth
M
M
Ryde
F
F
Sadrozinski
H F-W
HF
Sambruna
R
R
Sanchez
D
D
Sander
A
A
Saz Parkinson
P M
PM
Scargle
J D
JD
Sgrò
C
C
Siskind
E J
EJ
Smith
D A
DA
Smith
P D
PD
Spandre
G
G
Spinelli
P
P
Starck
J-L
JL
Stawarz
Ł
Ł
Strickman
M S
MS
Suson
D J
DJ
Tajima
H
H
Takahashi
H
H
Takahashi
T
T
Tanaka
T
T
Thayer
J B
JB
Thayer
J G
JG
Thompson
D J
DJ
Tibaldo
L
L
Torres
D F
DF
Tosti
G
G
Tramacere
A
A
Uchiyama
Y
Y
Usher
T L
TL
Vasileiou
V
V
Vilchez
N
N
Vitale
V
V
Waite
A P
AP
Wallace
E
E
Wang
P
P
Winer
B L
BL
Wood
K S
KS
Ylinen
T
T
Ziegler
M
M
Hardcastle
M J
MJ
Kazanas
D
D