Discovery of Very High Energy Gamma Rays from 1ES 1218+30.4 | Zendy

J. Albert | Zendy; E. Aliu | Zendy; H. Anderhub | Zendy; P. Antoranz | Zendy; A. Armada | Zendy; M. Asensio | Zendy; C. Baixeras | Zendy; J. A. Barrio | Zendy; M. Bartelt | Zendy; H. Bartko | Zendy; D. Bastieri | Zendy; S. R. Bavikadi | Zendy; W. Bednarek | Zendy; K. Berger | Zendy; C. Bigongiari | Zendy; A. Biland | Zendy; Erica Bisesi | Zendy; R. K. Böck | Zendy; T. Bretz | Zendy; I. Britvitch | Zendy; Montaña Cámara | Zendy; A. Chilingarian | Zendy; S. Ciprini | Zendy; J. A. Coarasa | Zendy; S. Commichau | Zendy; J. L. Contreras | Zendy; J. Cortina | Zendy; V. Curtef | Zendy; V. Danielyan | Zendy; F. Dazzi | Zendy; A. De Angelis | Zendy; R. de los Reyes | Zendy; B. De Lotto | Zendy; E. Domingo-Santamaría | Zendy; D. Dorner | Zendy; M. Doro | Zendy; M. Errando | Zendy; M. Fagiolini | Zendy; D. Ferenc | Zendy; E. Fernández | Zendy; R. Firpo | Zendy; J. Flix | Zendy; M. V. Fonseca | Zendy; L. Font | Zendy; N. Galante | Zendy; M. Garczarczyk | Zendy; M. Gaug | Zendy; M. Giller | Zendy; F. Göebel | Zendy; D. Hakobyan | Zendy; M. Hayashida | Zendy; T. Hengstebeck | Zendy; D. Höhne | Zendy; J. Hose | Zendy; P. Jacoń | Zendy; O. Kalekin | Zendy; D. Kranich | Zendy; A. Laille | Zendy; T. Lenisa | Zendy; P. Liebing | Zendy; E. Lindfors | Zendy; F. Longo | Zendy; J. López | Zendy; Marcos López | Zendy; E. Lorenz | Zendy; F. Lucarelli | Zendy; P. Majumdar | Zendy; G. Maneva | Zendy; K. Mannheim | Zendy; M. Mariotti | Zendy; M. Martı́nez | Zendy; K. Mase | Zendy; D. Mazin | Zendy; M. Meucci | Zendy; M. Meyer | Zendy; J. M. Miranda | Zendy; R. Mirzoyan | Zendy; S. Mizobuchi | Zendy; A. Moralejo | Zendy; K. Nilsson | Zendy; E. de Oña Wilhelmi | Zendy; R. Orduña | Zendy; A. N. Otte | Zendy; D. Paneque | Zendy; R. Paoletti | Zendy; M. Pasanen | Zendy; D. Pascoli | Zendy; F. Pauss | Zendy; N. Pavel | Zendy; R. Pegna | Zendy; M. Persic | Zendy; L. Peruzzo | Zendy; A. Piccioli | Zendy; M. Pöller | Zendy; E. Prandini | Zendy; W. Rhode | Zendy; J. Rico | Zendy; Bernhard Riegel | Zendy; M. Rissi | Zendy; A. Robert | Zendy; S. Rügamer | Zendy; A. Saggion | Zendy; A. Sánchez | Zendy; P. Sartori | Zendy; V. Scalzotto | Zendy; R. Schmitt | Zendy; T. Schweizer | Zendy; M. Shayduk | Zendy; K. Shinozaki | Zendy; S. N. Shore | Zendy; N. Sidro | Zendy; A. Sillanpää | Zendy; D. Sobczyńska | Zendy; A. Stamerra | Zendy; L. S. Stark | Zendy; L. O. Takalo | Zendy; P. Temnikov | Zendy; D. Tescaro | Zendy; M. Teshima | Zendy; N. Tonello | Zendy; A. Torres-Forné | Zendy; D. F. Torres | Zendy; N. Turini | Zendy; H. Vankov | Zendy; A. Vardanyan | Zendy; V. Vitale | Zendy; Robert Wagner | Zendy; Tadeusz Wibig | Zendy; W. Wittek | Zendy; J. Zapatero | Zendy

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Discovery of Very High Energy Gamma Rays from 1ES 1218+30.4

Author(s) -

J. Albert,

E. Aliu,

H. Anderhub,

P. Antoranz,

A. Armada,

M. Asensio,

C. Baixeras,

J. A. Barrio,

M. Bartelt,

H. Bartko,

D. Bastieri,

S. R. Bavikadi,

W. Bednarek,

K. Berger,

C. Bigongiari,

A. Biland,

Erica Bisesi,

R. K. Böck,

T. Bretz,

I. Britvitch,

Montaña Cámara,

A. Chilingarian,

S. Ciprini,

J. A. Coarasa,

S. Commichau,

J. L. Contreras,

J. Cortina,

V. Curtef,

V. Danielyan,

F. Dazzi,

A. De Angelis,

R. de los Reyes,

B. De Lotto,

E. Domingo-Santamaría,

D. Dorner,

M. Doro,

M. Errando,

M. Fagiolini,

D. Ferenc,

E. Fernández,

R. Firpo,

J. Flix,

M. V. Fonseca,

L. Font,

N. Galante,

M. Garczarczyk,

M. Gaug,

M. Giller,

F. Göebel,

D. Hakobyan,

M. Hayashida,

T. Hengstebeck,

D. Höhne,

J. Hose,

P. Jacoń,

O. Kalekin,

D. Kranich,

A. Laille,

T. Lenisa,

P. Liebing,

E. Lindfors,

F. Longo,

J. López,

Marcos López,

E. Lorenz,

F. Lucarelli,

P. Majumdar,

G. Maneva,

K. Mannheim,

M. Mariotti,

M. Martı́nez,

K. Mase,

D. Mazin,

M. Meucci,

M. Meyer,

J. M. Miranda,

R. Mirzoyan,

S. Mizobuchi,

A. Moralejo,

K. Nilsson,

E. de Oña Wilhelmi,

R. Orduña,

A. N. Otte,

D. Paneque,

R. Paoletti,

M. Pasanen,

D. Pascoli,

F. Pauss,

N. Pavel,

R. Pegna,

M. Persic,

L. Peruzzo,

A. Piccioli,

M. Pöller,

E. Prandini,

W. Rhode,

J. Rico,

Bernhard Riegel,

M. Rissi,

A. Robert,

S. Rügamer,

A. Saggion,

A. Sánchez,

P. Sartori,

V. Scalzotto,

R. Schmitt,

T. Schweizer,

M. Shayduk,

K. Shinozaki,

S. N. Shore,

N. Sidro,

A. Sillanpää,

D. Sobczyńska,

A. Stamerra,

L. S. Stark,

L. O. Takalo,

P. Temnikov,

D. Tescaro,

M. Teshima,

N. Tonello,

A. Torres-Forné,

D. F. Torres,

N. Turini,

H. Vankov,

A. Vardanyan,

V. Vitale,

Robert Wagner,

Tadeusz Wibig,

W. Wittek,

J. Zapatero

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/504845

Subject(s) - physics , magic (telescope) , redshift , telescope , bl lac object , gamma ray , energy spectrum , flux (metallurgy) , astrophysics , nuclear physics , galaxy , blazar , materials science , metallurgy

The MAGIC collaboration has studied the high-frequency-peaked BL Lac object 1ES 1218 + 30.4, at a redshift z = 0.182, using the MAGIC imaging air Cerenkov telescope located on the Canary Island of La Palma. A gamma-ray signal was observed with 6.4 sigma significance. The differential energy spectrum for an energy threshold of 120 GeV can be fitted by a simple power law, yielding F-E = (8.1 +/- 2.1) x 10(-7)[E/(250 GeV)](-3.0 +/- 0.4) TeV-1 F (E) m(-2) s(-1). During the 6 days of observation in 2005 January, no time variability on timescales of days was found within the statistical errors. The observed integral flux above 350 GeV is nearly a factor of 2 below the upper limit reported by the Whipple collaboration in 2003

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