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

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 d...

Descripción completa

Detalles Bibliográficos
Autores: MAGIC Collaboration, Paredes i Poy, Josep Maria, Ribó Gomis, Marc, Bosch i Ramon, Valentí
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2007
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/150593
Acceso en línea:https://hdl.handle.net/2445/150593
Access Level:acceso abierto
Palabra clave:Raigs gamma
Observatoris astronòmics
Gamma rays
Astronomical observatories
id ES_2d8ee3ec38eee577b9d6e26d15248e4d
oai_identifier_str oai:diposit.ub.edu:2445/150593
network_acronym_str ES
network_name_str España
repository_id_str
spelling Detection of very high energy radiation from the BL lacertae object PG 1553+113 with the MAGIC telescopeMAGIC CollaborationParedes i Poy, Josep MariaRibó Gomis, MarcBosch i Ramon, ValentíRaigs gammaObservatoris astronòmicsGamma raysAstronomical observatoriesIn 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.Institute of Physics (IOP)2007info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/150593Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1086/511384Astrophysical Journal, 2007, vol. 654, p. 119-122https://doi.org/10.1086/511384(c) American Astronomical Society, 2007info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1505932026-05-27T06:46:51Z
dc.title.none.fl_str_mv Detection of very high energy radiation from the BL lacertae object PG 1553+113 with the MAGIC telescope
title Detection of very high energy radiation from the BL lacertae object PG 1553+113 with the MAGIC telescope
spellingShingle Detection of very high energy radiation from the BL lacertae object PG 1553+113 with the MAGIC telescope
MAGIC Collaboration
Raigs gamma
Observatoris astronòmics
Gamma rays
Astronomical observatories
title_short Detection of very high energy radiation from the BL lacertae object PG 1553+113 with the MAGIC telescope
title_full Detection of very high energy radiation from the BL lacertae object PG 1553+113 with the MAGIC telescope
title_fullStr Detection of very high energy radiation from the BL lacertae object PG 1553+113 with the MAGIC telescope
title_full_unstemmed Detection of very high energy radiation from the BL lacertae object PG 1553+113 with the MAGIC telescope
title_sort Detection of very high energy radiation from the BL lacertae object PG 1553+113 with the MAGIC telescope
dc.creator.none.fl_str_mv MAGIC Collaboration
Paredes i Poy, Josep Maria
Ribó Gomis, Marc
Bosch i Ramon, Valentí
author MAGIC Collaboration
author_facet MAGIC Collaboration
Paredes i Poy, Josep Maria
Ribó Gomis, Marc
Bosch i Ramon, Valentí
author_role author
author2 Paredes i Poy, Josep Maria
Ribó Gomis, Marc
Bosch i Ramon, Valentí
author2_role author
author
author
dc.subject.none.fl_str_mv Raigs gamma
Observatoris astronòmics
Gamma rays
Astronomical observatories
topic Raigs gamma
Observatoris astronòmics
Gamma rays
Astronomical observatories
description 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.
publishDate 2007
dc.date.none.fl_str_mv 2007
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/150593
url https://hdl.handle.net/2445/150593
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1086/511384
Astrophysical Journal, 2007, vol. 654, p. 119-122
https://doi.org/10.1086/511384
dc.rights.none.fl_str_mv (c) American Astronomical Society, 2007
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Astronomical Society, 2007
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Institute of Physics (IOP)
publisher.none.fl_str_mv Institute of Physics (IOP)
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405328662069248
score 15,300719

Similares en LA Referencia