Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Home
Search
Quick Search
Advanced
Fulltext
Browse
Collections
Persons
My eDoc
Session History
Login
Name:
Password:
Documentation
Help
Support Wiki
Direct access to
document ID:


          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 544795.0, MPI für Physik / MPI für Physik
The MAGIC highlights of the gamma ray binary LS I +61 303
Authors:MAGIC collaboration; Jogler, T.; Puchades, N.; Blanch Bigas, O.; Bosch-Ramon, V.; Cortina, J.; Moldón, J.; Paredes, J. M.; Perez-Torres, M. A.; Ribó, M.; Rico, J.; Torres, D. F.; Zabalza, V.
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:The discovery of emission of TeV gamma rays from X-ray binaries has triggered an intense effort to better understand the particle acceleration, absorption, and emission mechanisms in compact binary systems. Here we present the pioneering effort of the MAGIC collaboration to understand the very high energy emission of the prototype system LS I +61 303. We report on the variable nature of the emission from LS I +61 303 and show that this emission is indeed periodic. The system shows regular outburst at TeV energies in phase phi=0.6-0.7 and detect no signal at periastron (phi~ 0.275). Furthermore we find no indication of spectral variation along the orbit of the compact object and the spectral energy distribution is compatible with a simple power law with index Gamma=2.6+-0.2_(stat)+-0.2_(sys). To answer some of the open questions concerning the emission process of the TeV radiation we conducted a multiwavelength campaign with the MAGIC telescope, XMM-Newton, and Swift in September 2007. We detect a simultaneous outburst at X-ray and TeV energies, with the peak at phase 0.62 and a similar shape at both wavelengths. A linear fit to the strictly simultaneous X-ray/TeV flux pairs provides r=0.81 -0.21 +0.06. Here we present the observations and discuss the implications of the obtained results to the emission processes in the system.
Classification / Thesaurus:MAGIC
Comment of the Author/Creator:4 pages, 3 figures, Contribution to the 31st ICRC 2009 Lodz
Document Type:Conference-Paper
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2009-106
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/arxiv:0907.0992
URL:http://publications.mppmu.mpg.de/?action=search&mp...
Full Text:
You have privileges to view the following file(s):
arxiv:0907.0992.pdf  [171,00 Kb] [Comment:file from upload service]  
 
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.