The active galactic nucleus PG1553+113 was observed by the MAGIC telescope in July 2006 during a multiwavelength campaign, in which telescopes in the optical, X-ray, and very high energies participated. Although the MAGIC data were affected by strong atmospheric absorption (calima), they were analyzed after applying a correction. In 8.5 h, a signal was detected with a significance of 5.0 sigma. The integral flux above 150 GeV was (2.6 +/- 0.9) x 10(-7) ph s(-1) m(-2). By fitting the differential energy spectrum with a power law, a spectral index of -4.1 +/- 0.3 was obtained.
MAGIC observations of PG 1553+113 during a multiwavelength campaign in July 2006 / J., Albert; E., Aliu; H., Anderhub; P., Antoranz; C., Baixeras; J. A., Barrio; H., Bartko; D., Bastieri; J. K., Becker; W., Bednarek; A., Berdyugin; K., Berger; C., Bigongiari; A., Biland; R. K., Bock; P., Bordas; V., Bosch Ramon; T., Bretz; I., Britvitch; M., Camara; E., Carmona; A., Chilingarian; S., Commichau; J. L., Contreras; J., Cortina; M. T., Costado; V., Curtef; V., Danielyan; F., Dazzi; A. D., Angelis; C., Delgado; R. D., Reyes; B. D., Lotto; D., Dorner; M., Doro; M., Errando; M., Fagiolini; D., Ferenc; E., Fernandez; R., Firpo; M. V., Fonseca; L., Font; M., Fuchs; N., Galante; R. J., Garcia Lopez; M., Garczarczyk; M., Gaug; F., Goebel; D., Hakobyan; M., Hayashida; T., Hengstebeck; A., Herrero; D., Hohne; J., Hose; C. C., Hsu; S., Huber; P., Jacon; T., Jogler; R., Kosyra; D., Kranich; R., Kritzer; A., Laille; E., Lindfors; S., Lombardi; Longo, Francesco; M., Lopez; E., Lorenz; P., Majumdar; G., Maneva; K., Mannheim; M., Mariotti; M., Martinez; D., Mazin; C., Merck; M., Meucci; M., Meyer; J. M., Miranda; R., Mirzoyan; S., Mizobuchi; A., Moralejo; D., Nieto; K., Nilsson; J., Ninkovic; E., Ona Wilhelmi; N., Otte; I., Oya; M., Panniello; R., Paoletti; M., Pasanen; D., Pascoli; F., Pauss; R., Pegna; M., Persic; L., Peruzzo; A., Piccioli; E., Prandini; N., Puchades; A., Raymers; J., Rico; W., Rhode; J., Rico; M., Rissi; A., Robert; S., Rugamer; A., Saggion; T. Y., Saito; A., Sanchez; P., Sartori; V., Scalzotto; V., Scapin; R., Schmitt; T., Schweizer; M., Shayduk; K., Shinozaki; S. N., Shore; N., Sidro; A., Sillanpaa; D., Sobczynska; F., Spanier; A., Stamerra; L. S., Stark; L., Takalo; P., Temnikov; D., Tescaro; M., Teshima; D. F., Torres; N., Turini; H., Vankov; A., Venturini; V., Vitale; R. M., Wagner; T., Wibig; W., Wittek; F., Zandanel; R., Zanin; J., Zapatero. - In: ASTRONOMY & ASTROPHYSICS. - ISSN 0004-6361. - STAMPA. - 493:(2009), pp. 467-469. [10.1051/0004-6361:20079048]
MAGIC observations of PG 1553+113 during a multiwavelength campaign in July 2006
LONGO, FRANCESCO;
2009-01-01
Abstract
The active galactic nucleus PG1553+113 was observed by the MAGIC telescope in July 2006 during a multiwavelength campaign, in which telescopes in the optical, X-ray, and very high energies participated. Although the MAGIC data were affected by strong atmospheric absorption (calima), they were analyzed after applying a correction. In 8.5 h, a signal was detected with a significance of 5.0 sigma. The integral flux above 150 GeV was (2.6 +/- 0.9) x 10(-7) ph s(-1) m(-2). By fitting the differential energy spectrum with a power law, a spectral index of -4.1 +/- 0.3 was obtained.Pubblicazioni consigliate
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