Variable Very High Energy Gamma-Ray Emission from the Microquasar LS I +61 303
- J. ALBERT
- E. ALIU
- H. ANDERHUB
- P. ANTORANZ
- A. ARMADA
- M. ASENSIO
- C. BAIXERAS
- J. A. BARRIO
- M. BARTELT
- H. BARTKO
- S. R. BAVIKADI
- W. BEDNAREK
- K. BERGER
- A. BILAND
- E. BISESI
- R. K. BOCK
- P. BORDAS
- V. BOSCH RAMON
- T. BRETZ
- I. BRITVITCH
- M. CAMARA
- E. CARMONA
- A. CHILINGARIAN
- S. CIPRINI
- J. A. COARASA
- S. COMMICHAU
- J. L. CONTRERAS
- J. CORTINA
- V. CURTEF
- V. DANIELYAN
- A. DE ANGELIS
- R. DE LOS REYES
- B. DE LOTTO
- E. DOMINGO SANTAMARA
- D. DORNER
- M. ERRANDO
- M. FAGIOLINI
- D. FERENC
- E. FERNNDEZ
- R. FIRPO
- J. FLIX
- M. V. FONSECA
- L. FONT
- M. FUCHS
- N. GALANTE
- M. GARCZARCZYK
- M. GAUG
- M. GILLER
- F. GOEBEL
- D. HAKOBYAN
- M. HAYASHIDA
- T. HENGSTEBECK
- D. HHNE
- J. HOSE
- C. C. HSU
- P. G. ISAR
- P. JACON
- O. KALEKIN
- R. KOSYRA
- D. KRANICH
- M. LAATIAOUI
- A. LAILLE
- T. LENISA
- P. LIEBING
- E. LINDFORS
- F. LONGO
- J. LPEZ
- M. LPEZ
- E. LORENZ
- F. LUCARELLI
- P. MAJUMDAR
- G. MANEVA
- K. MANNHEIM
- O. MANSUTTI
- M. MARTNEZ
- K. MASE
- D. MAZIN
- C. MERCK
- M. MEUCCI
- M. MEYER
- J. M. MIRANDA
- R. MIRZOYAN
- S. MIZOBUCHI
- A. MORALEJO
- K. NILSSON
- E. OA WILHELMI
- R. ORDUA
- N. OTTE
- I. OYA
- D. PANEQUE
- R. PAOLETTI
- J. M. PAREDES
- M. PASANEN
- F. PAUSS
- N. PAVEL
- R. PEGNA
- M. PERSIC
- A. PICCIOLI
- M. POLLER
- G. POOLEY
- E. PRANDINI
- A. RAYMERS
- W. RHODE
- M. RIB
- J. RICO
- B. RIEGEL
- M. RISSI
- A. ROBERT
- G. E. ROMERO
- S. RGAMER
- A. SNCHEZ
- V. SCAPIN
- R. SCHMITT
- T. SCHWEIZER
- M. SHAYDUK
- K. SHINOZAKI
- S. N. SHORE
- N. SIDRO
- A. SILLANP
- D. SOBCZYNSKA
- A. STAMERRA
- L. S. STARK
- L. TAKALO
- P. TEMNIKOV
- D. TESCARO
- M. TESHIMA
- N. TONELLO
- A. TORRES
- D. F. TORRES
- N. TURINI
- H. VANKOV
- V. VITALE
- R. M. WAGNER
- T. WIBIG
- W. WITTEK
- R. ZANIN
- J. ZAPATERO
- BASTIERI, DENIS
- BIGONGIARI, CIRO
- DAZZI, FRANCESCO
- DORO, MICHELE
- LOMBARDI, SAVERIO
- MARIOTTI, MOSE'
- PASCOLI, DONATELLA
- PERUZZO, LUIGI
- SAGGION, ANTONIO
- SARTORI, PAOLO
- SCALZOTTO, VILLI MARIO
Publication date
January 2006
DOIAbstract
Microquasars are binary star systems with relativistic radio-emitting jets. They are potential sources of cosmic rays and laboratories for elucidating the physics of relativistic jets. Here we report the detection of variable gamma-ray emission above 100 gigaelectron volts from the microquasar LS I +61 303. Six orbital cycles were recorded. Several detections occur at a similar orbital phase, suggesting the emission is periodic. The strongest gamma-ray emission is not observed when the two stars are closest to one another, implying a strong orbital modulation of the emission or the absorption processes
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