Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Files

546725.pdf (97.3 KB)

Document type

Article

Version

Published version

Publication date

2007

All rights reserved

Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/150593

Detection of very high energy radiation from the BL lacertae object PG 1553+113 with the MAGIC telescope

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

https://doi.org/10.1086/511384

Abstract

In 2005 and 2006, the MAGIC telescope observed very high energy gamma-ray emission from the distant BL Lac object PG 1553+113. The overall significance of the signal was 8.8 σ for 18.8 hr of observation time. The light curve shows no significant flux variations on a daily timescale; the flux level during 2005 was, however, significantly higher compared to 2006. The differential energy spectrum between ~90 and 500 GeV is well described by a power law with photon index Γ = 4.2 ± 0.3. The combined 2005 and 2006 energy spectrum provides an upper limit of z = 0.74 on the redshift of the object.

Subject

Raigs gamma, Observatoris astronòmics

Subject (English)

Gamma rays, Astronomical observatories

Citation

Collections

Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

MAGIC Collaboration, et al. Detection of very high energy radiation from the BL lacertae object PG 1553+113 with the MAGIC telescope. Astrophysical Journal. 2007. Vol. 654, num. 119-122. ISSN 0004-637X. [consulted: 14 of August of 2026]. Available at: https://hdl.handle.net/2445/150593

Export metadata

JSON - METS

Share record