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We performed a simultaneous multiwavelength observation of the blazar 1ES1426+428 in May-June 2008 with the KVA telescope for the optical band, the Suzaku and Swift satellites for the X-rays and with the MAGIC telescope for the very high energy (VHE) band (E > 100 GeV). The analysis of the X-ray data showed that the source was in an intermediate state of activity, while MAGIC could not detect significant VHE gamma-ray emission from the source. This indicates that the VHE flux was more than one order of magnitude lower compared to historical detections. The optical flux increased by 20 % during the MAGIC observations. We present an upper limit at 95 % confidence level (CL) of 3 % of the Crab Nebula for E > 130 GeV from about 34 hours of MAGIC observations and the results from Suzaku, Swift and KVA. Moreover an SED is obtained combining the multiwavelength observations of the source.

Leonardo, E., Bose, D., Foschini, L., Mankuzhiyil, N., Oya, I., Rügamer, S., et al. (2009). Multiwavelength observation of the blazar 1ES1426+428 in May-June 2008. In ArXiv e-prints (pp.959).

Multiwavelength observation of the blazar 1ES1426+428 in May-June 2008

Stamerra A.;
2009-01-01

Abstract

We performed a simultaneous multiwavelength observation of the blazar 1ES1426+428 in May-June 2008 with the KVA telescope for the optical band, the Suzaku and Swift satellites for the X-rays and with the MAGIC telescope for the very high energy (VHE) band (E > 100 GeV). The analysis of the X-ray data showed that the source was in an intermediate state of activity, while MAGIC could not detect significant VHE gamma-ray emission from the source. This indicates that the VHE flux was more than one order of magnitude lower compared to historical detections. The optical flux increased by 20 % during the MAGIC observations. We present an upper limit at 95 % confidence level (CL) of 3 % of the Crab Nebula for E > 130 GeV from about 34 hours of MAGIC observations and the results from Suzaku, Swift and KVA. Moreover an SED is obtained combining the multiwavelength observations of the source.
2009
Leonardo, E., Bose, D., Foschini, L., Mankuzhiyil, N., Oya, I., Rügamer, S., et al. (2009). Multiwavelength observation of the blazar 1ES1426+428 in May-June 2008. In ArXiv e-prints (pp.959).
4.1 Contributo in Atti di convegno
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/43106
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