Fermi/LAT discovery of gamma-ray emission from the flat-spectrum radio quasar PKS 1454-354
A.A. Abdo
,
Markus Ackermann
,
W. B. Atwood
,
Magnus Axelsson
,
Luca Baldini
,
Jean Ballet
(1)
,
Guido Barbiellini
,
D. Bastieri
,
B. M. Baughman
,
K. Bechtol
,
R. Bellazzini
,
B. Berenji
,
R. D. Blandford
,
E. D. Bloom
,
G. Bogaert
(2)
,
E. Bonamente
,
A. W. Borgland
,
J. Bregeon
,
A. Brez
,
M. Brigida
,
Pascal Bruel
(2)
,
T. H. Burnett
,
G. A. Caliandro
,
R. A. Cameron
,
P. A. Caraveo
,
J. M. Casandjian
(1)
,
E. Cavazzuti
,
C. Cecchi
,
E. Charles
,
A. Chekhtman
,
C. C. Cheung
,
J. Chiang
,
S. Ciprini
,
R. Claus
,
J. Cohen-Tanugi
(3)
,
S. Colafrancesco
,
J. Conrad
,
L. Costamante
,
S. Cutini
,
C. D. Dermer
,
A. de Angelis
,
F. de Palma
,
S. W. Digel
,
E. Do Couto E Silva
,
P. S. Drell
,
R. Dubois
,
D. Dumora
(4)
,
Y. Edmonds
,
C. Farnier
(3)
,
C. Favuzzi
,
E. C. Ferrara
,
P. Fleury
(2)
,
W. B. Focke
,
L. Foschini
,
M. Frailis
,
L. Fuhrmann
,
Y. Fukazawa
,
S. Funk
,
P. Fusco
,
F. Gargano
,
D. Gasparrini
,
N. Gehrels
,
S. Germani
,
B. Giebels
(2)
,
N. Giglietto
,
F. Giordano
,
M. Giroletti
,
T. Glanzman
,
G. Godfrey
,
I. A. Grenier
(1)
,
M.-H. Grondin
(4)
,
J. E. Grove
,
L. Guillemot
(4)
,
S. Guiriec
(3)
,
A. K. Harding
,
R. C. Hartman
,
M. Hayashida
,
E. Hays
,
S. E. Healey
,
R. E. Hughes
,
G. J'Ohannesson
,
A. S. Johnson
,
R. P. Johnson
,
W. N. Johnson
,
M. Kadler
,
T. Kamae
,
H. Katagiri
,
J. Kataoka
,
N. Kawai
,
M. Kerr
,
Jürgen Knödlseder
(5)
,
M. L. Kocian
,
F. Kuehn
,
M. Kuss
,
L. Latronico
,
S.-H. Lee
,
M. Lemoine-Goumard
(4)
,
F. Longo
,
F. Loparco
,
B. Lott
(4)
,
M. N. Lovellette
,
P. Lubrano
,
G. M. Madejski
,
A. Makeev
,
M. Marelli
,
M. N. Mazziotta
,
J. E. Mcenery
,
S. Mcglynn
,
C. Meurer
,
P. F. Michelson
,
W. Mitthumsiri
,
T. Mizuno
,
A. A. Moiseev
,
C. Monte
,
M. E. Monzani
,
A. Morselli
,
I. V. Moskalenko
,
S. Murgia
,
P. L. Nolan
,
E. Nuss
(3)
,
M. Ohno
,
T. Ohsugi
,
R. Ojha
,
N. Omodei
,
E. Orlando
,
J. F. Ormes
,
D. Paneque
,
J. H. Panetta
,
D. Parent
(4)
,
M. Pepe
,
M. Pesce-Rollins
,
F. Piron
(3)
,
T.A. Porter
,
S. Rain'O
,
R. Rando
,
M. Razzano
,
A. Reimer
,
O. Reimer
,
T. Reposeur
(4)
,
L. C. Reyes
,
S. Ritz
,
L. S. Rochester
,
A. Y. Rodriguez
,
R. W. Romani
,
M. Roth
,
F. Ryde
,
H. F.-W. Sadrozinski
,
R. Sambruna
,
D. Sanchez
(2)
,
A. Sander
,
P. M. Saz Parkinson
,
C. Sgr'O
,
M. S. Shaw
,
E. J. Siskind
,
David Stanley Smith
(4)
,
P. D. Smith
,
G. Spandre
,
P. Spinelli
,
Jean-Luc Starck
,
M. S. Strickman
,
D. J. Suson
,
H. Tajima
,
H. Takahashi
,
T. Tanaka
,
J. B. Thayer
,
J. G. Thayer
,
D. J. Thompson
,
L. Tibaldo
,
O. Tibolla
,
D. F. Torres
,
G. Tosti
,
A. Tramacere
,
T. L. Usher
,
N. Vilchez
(5)
,
V. Vitale
,
A. P. Waite
,
P. Wang
,
B. L. Winer
,
K. S. Wood
,
T. Ylinen
,
M. Ziegler
,
P. G. Edwards
,
M. M. Chester
,
D. N. Burrows
,
M. Hauser
,
S. Wagner
A.A. Abdo
- Function : Author
Markus Ackermann
- Function : Author
W. B. Atwood
- Function : Author
Magnus Axelsson
- Function : Author
Luca Baldini
- Function : Author
Guido Barbiellini
- Function : Author
D. Bastieri
- Function : Author
B. M. Baughman
- Function : Author
K. Bechtol
- Function : Author
R. Bellazzini
- Function : Author
B. Berenji
- Function : Author
R. D. Blandford
- Function : Author
E. D. Bloom
- Function : Author
G. Bogaert
- Function : Author
- PersonId : 458
- IdHAL : gilles-bogaert
- ORCID : 0000-0003-2507-3866
- IdRef : 19020317X
E. Bonamente
- Function : Author
A. W. Borgland
- Function : Author
J. Bregeon
- Function : Author
- PersonId : 741214
- IdHAL : johan-bregeon
- ORCID : 0000-0002-6790-5328
- IdRef : 095856943
A. Brez
- Function : Author
M. Brigida
- Function : Author
T. H. Burnett
- Function : Author
G. A. Caliandro
- Function : Author
R. A. Cameron
- Function : Author
P. A. Caraveo
- Function : Author
E. Cavazzuti
- Function : Author
C. Cecchi
- Function : Author
E. Charles
- Function : Author
A. Chekhtman
- Function : Author
C. C. Cheung
- Function : Author
J. Chiang
- Function : Author
S. Ciprini
- Function : Author
R. Claus
- Function : Author
J. Cohen-Tanugi
- Function : Author
- PersonId : 3626
- IdHAL : johann-cohen-tanugi
- ORCID : 0000-0001-9022-4232
- IdRef : 172626544
S. Colafrancesco
- Function : Author
J. Conrad
- Function : Author
L. Costamante
- Function : Author
S. Cutini
- Function : Author
C. D. Dermer
- Function : Author
A. de Angelis
- Function : Author
F. de Palma
- Function : Author
S. W. Digel
- Function : Author
E. Do Couto E Silva
- Function : Author
P. S. Drell
- Function : Author
R. Dubois
- Function : Author
Y. Edmonds
- Function : Author
C. Favuzzi
- Function : Author
E. C. Ferrara
- Function : Author
W. B. Focke
- Function : Author
L. Foschini
- Function : Author
M. Frailis
- Function : Author
L. Fuhrmann
- Function : Author
Y. Fukazawa
- Function : Author
- PersonId : 760581
- ORCID : 0000-0002-0921-8837
S. Funk
- Function : Author
P. Fusco
- Function : Author
F. Gargano
- Function : Author
D. Gasparrini
- Function : Author
N. Gehrels
- Function : Author
S. Germani
- Function : Author
N. Giglietto
- Function : Author
- PersonId : 755413
- ORCID : 0000-0002-9021-2888
F. Giordano
- Function : Author
M. Giroletti
- Function : Author
T. Glanzman
- Function : Author
G. Godfrey
- Function : Author
M.-H. Grondin
- Function : Author
- PersonId : 760583
- IdHAL : mhgrondin
- ORCID : 0000-0002-8383-251X
- IdRef : 14852026X
J. E. Grove
- Function : Author
A. K. Harding
- Function : Author
R. C. Hartman
- Function : Author
M. Hayashida
- Function : Author
E. Hays
- Function : Author
S. E. Healey
- Function : Author
R. E. Hughes
- Function : Author
G. J'Ohannesson
- Function : Author
A. S. Johnson
- Function : Author
R. P. Johnson
- Function : Author
W. N. Johnson
- Function : Author
M. Kadler
- Function : Author
T. Kamae
- Function : Author
H. Katagiri
- Function : Author
J. Kataoka
- Function : Author
N. Kawai
- Function : Author
M. Kerr
- Function : Author
Jürgen Knödlseder
- Function : Author
- PersonId : 178646
- IdHAL : jurgen-knodlseder
- ORCID : 0000-0002-0014-7809
- IdRef : 069521360
M. L. Kocian
- Function : Author
F. Kuehn
- Function : Author
M. Kuss
- Function : Author
L. Latronico
- Function : Author
S.-H. Lee
- Function : Author
M. Lemoine-Goumard
- Function : Author
- PersonId : 1416454
- IdHAL : marianne-lemoine-goumard
- IdRef : 111693608
F. Longo
- Function : Author
- PersonId : 755442
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F. Loparco
- Function : Author
B. Lott
- Function : Author
- PersonId : 739369
- IdHAL : benoit-lott
- ORCID : 0000-0003-2186-9242
- IdRef : 031300065
M. N. Lovellette
- Function : Author
P. Lubrano
- Function : Author
G. M. Madejski
- Function : Author
A. Makeev
- Function : Author
M. Marelli
- Function : Author
M. N. Mazziotta
- Function : Author
J. E. Mcenery
- Function : Author
S. Mcglynn
- Function : Author
C. Meurer
- Function : Author
P. F. Michelson
- Function : Author
W. Mitthumsiri
- Function : Author
T. Mizuno
- Function : Author
A. A. Moiseev
- Function : Author
C. Monte
- Function : Author
M. E. Monzani
- Function : Author
A. Morselli
- Function : Author
I. V. Moskalenko
- Function : Author
S. Murgia
- Function : Author
P. L. Nolan
- Function : Author
M. Ohno
- Function : Author
T. Ohsugi
- Function : Author
R. Ojha
- Function : Author
N. Omodei
- Function : Author
E. Orlando
- Function : Author
J. F. Ormes
- Function : Author
D. Paneque
- Function : Author
- PersonId : 755279
- ORCID : 0000-0002-2830-0502
J. H. Panetta
- Function : Author
M. Pepe
- Function : Author
M. Pesce-Rollins
- Function : Author
- PersonId : 760585
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F. Piron
- Function : Author
- PersonId : 172749
- IdHAL : frederic-piron
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T.A. Porter
- Function : Author
S. Rain'O
- Function : Author
R. Rando
- Function : Author
M. Razzano
- Function : Author
A. Reimer
- Function : Author
- PersonId : 755465
- ORCID : 0000-0001-8604-7077
O. Reimer
- Function : Author
T. Reposeur
- Function : Author
- PersonId : 738492
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- IdRef : 139970665
L. C. Reyes
- Function : Author
S. Ritz
- Function : Author
L. S. Rochester
- Function : Author
A. Y. Rodriguez
- Function : Author
R. W. Romani
- Function : Author
M. Roth
- Function : Author
F. Ryde
- Function : Author
H. F.-W. Sadrozinski
- Function : Author
R. Sambruna
- Function : Author
A. Sander
- Function : Author
- PersonId : 760586
- ORCID : 0000-0001-5800-3835
P. M. Saz Parkinson
- Function : Author
C. Sgr'O
- Function : Author
M. S. Shaw
- Function : Author
E. J. Siskind
- Function : Author
David Stanley Smith
- Function : Author
- PersonId : 866129
P. D. Smith
- Function : Author
G. Spandre
- Function : Author
P. Spinelli
- Function : Author
Jean-Luc Starck
- Function : Author
- PersonId : 858909
M. S. Strickman
- Function : Author
D. J. Suson
- Function : Author
H. Tajima
- Function : Author
H. Takahashi
- Function : Author
T. Tanaka
- Function : Author
- PersonId : 756461
- ORCID : 0000-0002-4383-0368
J. B. Thayer
- Function : Author
J. G. Thayer
- Function : Author
D. J. Thompson
- Function : Author
L. Tibaldo
- Function : Author
O. Tibolla
- Function : Author
D. F. Torres
- Function : Author
G. Tosti
- Function : Author
A. Tramacere
- Function : Author
T. L. Usher
- Function : Author
V. Vitale
- Function : Author
- PersonId : 760184
- ORCID : 0000-0001-8040-7852
A. P. Waite
- Function : Author
P. Wang
- Function : Author
B. L. Winer
- Function : Author
K. S. Wood
- Function : Author
T. Ylinen
- Function : Author
M. Ziegler
- Function : Author
P. G. Edwards
- Function : Author
M. M. Chester
- Function : Author
D. N. Burrows
- Function : Author
M. Hauser
- Function : Author
S. Wagner
- Function : Author
- PersonId : 755174
- ORCID : 0000-0002-7474-6062
Abstract
We report the discovery by the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope of high-energy gamma-ray (GeV) emission from the flat-spectrum radio quasar PKS 1454-354 (z=1.424). On 4 September 2008 the source rose to a peak flux of (3.5 +/- 0.7)x 10^-6 ph cm^-2 s^-1 (E > 100 MeV) on a time scale of hours and then slowly dropped over the following two days. No significant spectral changes occurred during the flare. Fermi/LAT observations also showed that PKS 1454-354 is the most probable counterpart of the unidentified EGRET source 3EG J1500-3509. Multiwavelength measurements performed during the following days (7 September with Swift; 6-7 September with the ground-based optical telescope ATOM; 13 September with the Australia Telescope Compact Array) resulted in radio, optical, UV and X-ray fluxes greater than archival data, confirming the activity of PKS 1454-354.