Science-advisor
REGISTER info/FAQ
Login
username
password
     
forgot password?
register here
 
Research articles
  search articles
  reviews guidelines
  reviews
  articles index
My Pages
my alerts
  my messages
  my reviews
  my favorites
 
 
Stat
Members: 3643
Articles: 2'488'730
Articles rated: 2609

29 March 2024
 
  » arxiv » 0910.4381

 Article overview


Correlated X-ray and Very High Energy emission in the gamma-ray binary LS I +61 303
MAGIC Collaboration ; H. Anderhub ; L. A. Antonelli ; P. Antoranz ; M. Backes ; C. Baixeras ; S. Balestra ; J. A. Barrio ; D. Bastieri ; J. Becerra González ; J. K. Becker ; W. Bednarek ; K. Berger ; E. Bernardini ; A. Biland ; O. Blanch Bigas ; R. K. Bock ; G. Bonnoli ; P. Bordas ; D. Borla Tridon ; V. Bosch-Ramon ; D. Bose ; I. Braun ; T. Bretz ; D. Britzger ; M. Camara ; E. Carmona ; A. Carosi ; P. Colin ; S. Commichau ; J. L. Contreras ; J. Cortina ; M. T. Costado ; S. Covino ; F. Dazzi ; A. De Angelis ; E. de Cea del Pozo ; R. De los Reyes ; B. De Lotto ; M. De Maria ; F. De Sabata ; C. Delgado Mendez ; A. Domínguez ; D. Dominis Prester ; D. Dorner ; M. Doro ; D. Elsaesser ; M. Errando ; D. Ferenc ; E. Fernández ; R. Firpo ; M. V. Fonseca ; L. Font ; N. Galante ; R. J. García López ; M. Garczarczyk ; M. Gaug ; N. Godinovic ; F. Goebel ; D. Hadasch ; A. Herrero ; D. Hildebrand ; D. Höhne-Mönch ; J. Hose ; D. Hrupec ; C. C. Hsu ; T. Jogler ; S. Klepser ; D. Kranich ; A. La Barbera ; A. Laille ; E. Leonardo ; E. Lindfors ; S. Lombardi ; F. Longo ; M. López ; E. Lorenz ; P. Majumdar ; G. Maneva ; N. Mankuzhiyil ; K. Mannheim ; L. Maraschi ; M. Mariotti ; M. Martínez ; D. Mazin ; M. Meucci ; J. M. Miranda ; R. Mirzoyan ; H. Miyamoto ; J. Moldón ; M. Moles ; A. Moralejo ; D. Nieto ; K. Nilsson ; J. Ninkovic ; R. Orito ; I. Oya ; R. Paoletti ; J. M. Paredes ; M. Pasanen ; D. Pascoli ; F. Pauss ; R. G. Pegna ; M. A. Perez-Torres ; M. Persic ; L. Peruzzo ; F. Prada ; E. Prandini ; N. Puchades ; I. Puljak ; I. Reichardt ; W. Rhode ; M. Ribó ; J. Rico ; M. Rissi ; A. Robert ; S. Rügamer ; A. Saggion ; T. Y. Saito ; M. Salvati ; M. Sánchez-Conde ; K. Satalecka ; V. Scalzotto ; V. Scapin ; T. Schweizer ; M. Shayduk ; S. N. Shore ; N. Sidro ; A. Sierpowska-Bartosik ; A. Sillanpää ; J. Sitarek ; D. Sobczynska ; F. Spanier ; S. Spiro ; A. Stamerra ; L. S. Stark ; T. Suric ; L. Takalo ; F. Tavecchio ; P. Temnikov ; D. Tescaro ; M. Teshima ; D. F. Torres ; N. Turini ; H. Vankov ; R. M. Wagner ; V. Zabalza ; F. Zandanel ; R. Zanin ; J. Zapatero ; A. Falcone ; L. Vetere ; N. Gehrels ; S. Trushkin ; V. Dhawan ; P. Reig ;
Date 22 Oct 2009
AbstractThe discovery of very high energy (VHE) gamma-ray emitting X-ray binaries has triggered an intense effort to better understand the particle acceleration, absorption, and emission mechanisms in compact binary systems, which provide variable conditions along eccentric orbits. Despite this, the nature of some of these systems, and of the accelerated particles producing the VHE emission, is unclear. To answer some of these open questions, we conducted a multiwavelength campaign of the VHE gamma-ray emitting X-ray binary LS I +61 303 including the MAGIC telescope, XMM-Newton, and Swift during 60% of an orbit in 2007 September. We detect a simultaneous outburst at X-ray and VHE bands, with the peak at phase 0.62 and a similar shape at both wavelengths. A linear fit to the simultaneous X-ray/VHE pairs obtained during the outburst yields a correlation coefficient of r=0.97, while a linear fit to all simultaneous pairs provides r=0.81. Since a variable absorption of the VHE emission towards the observer is not expected for the data reported here, the correlation found indicates a simultaneity in the emission processes. Assuming that they are dominated by a single particle population, either hadronic or leptonic, the X-ray/VHE flux ratio favors leptonic models. This fact, together with the detected photon indices, suggests that in LS I +61 303 the X-rays are the result of synchrotron radiation of the same electrons that produce VHE emission as a result of inverse Compton scattering of stellar photons.
Source arXiv, 0910.4381
Services Forum | Review | PDF | Favorites   
 
Visitor rating: did you like this article? no 1   2   3   4   5   yes

No review found.
 Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

  Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser claudebot






ScienXe.org
» my Online CV
» Free


News, job offers and information for researchers and scientists:
home  |  contact  |  terms of use  |  sitemap
Copyright © 2005-2024 - Scimetrica