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Title: EBL effect on the observation of multi-TeV flaring of 2009 from Markarian 501

Markarian 501 is a high-peaked BL Lacertae object and has undergone many major outbursts since its discovery in 1996. As a part of the multiwavelength campaign, in the year 2009 this blazar was observed for 4.5 months from March 9 to August 1 and during the period April 17 to May 5 it was observed by both space and ground based observatories covering the entire electromagnetic spectrum. A very strong high energy γ-ray flare was observed on May 1 by Whipple telescope in the energy range 317 GeV to 5 TeV and the flux was about 10 times higher than the average baseline flux. Previously during 1997 Markarian 501 had undergone another long outburst, which was observed by HEGRA telescopes and the energy spectrum was well beyond 10 TeV. The photohadronic model complemented by the extragalactic background radiation (EBL) correction fits well with the flares data observed by both Whipple and HEGRA. Our model predicts a steeper slope of the energy spectrum beyond 10 TeV, which is compatible with the improved analysis of the HEGRA data.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [2]
  1. National Autonomous Univ. of Mexico (UNAM), Mexico City (Mexico). Inst. of Nuclear Sciences
  2. Center for Research and Advanced Studies of the National Polytechnic Inst. (CINVESTAV-IPN), Merida (Mexico). Dept. of Applied Physics
Publication Date:
Grant/Contract Number:
IN110815
Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 77; Journal Issue: 1; Journal ID: ISSN 1434-6044
Publisher:
Springer
Research Org:
National Autonomous Univ. of Mexico (UNAM), Mexico City (Mexico); Center for Research and Advanced Studies of the National Polytechnic Inst. (CINVESTAV-IPN), Merida (Mexico)
Sponsoring Org:
National Autonomous Univ. of Mexico (UNAM); National Council of Science and Technology (CONACYT) (Mexico)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1411649

Sahu, Sarira, Yáñez, Marco Vladimir Lemus, Miranda, Luis Salvador, de León, Alberto Rosales, and Gupta, Virendra. EBL effect on the observation of multi-TeV flaring of 2009 from Markarian 501. United States: N. p., Web. doi:10.1140/epjc/s10052-016-4592-9.
Sahu, Sarira, Yáñez, Marco Vladimir Lemus, Miranda, Luis Salvador, de León, Alberto Rosales, & Gupta, Virendra. EBL effect on the observation of multi-TeV flaring of 2009 from Markarian 501. United States. doi:10.1140/epjc/s10052-016-4592-9.
Sahu, Sarira, Yáñez, Marco Vladimir Lemus, Miranda, Luis Salvador, de León, Alberto Rosales, and Gupta, Virendra. 2017. "EBL effect on the observation of multi-TeV flaring of 2009 from Markarian 501". United States. doi:10.1140/epjc/s10052-016-4592-9. https://www.osti.gov/servlets/purl/1411649.
@article{osti_1411649,
title = {EBL effect on the observation of multi-TeV flaring of 2009 from Markarian 501},
author = {Sahu, Sarira and Yáñez, Marco Vladimir Lemus and Miranda, Luis Salvador and de León, Alberto Rosales and Gupta, Virendra},
abstractNote = {Markarian 501 is a high-peaked BL Lacertae object and has undergone many major outbursts since its discovery in 1996. As a part of the multiwavelength campaign, in the year 2009 this blazar was observed for 4.5 months from March 9 to August 1 and during the period April 17 to May 5 it was observed by both space and ground based observatories covering the entire electromagnetic spectrum. A very strong high energy γ-ray flare was observed on May 1 by Whipple telescope in the energy range 317 GeV to 5 TeV and the flux was about 10 times higher than the average baseline flux. Previously during 1997 Markarian 501 had undergone another long outburst, which was observed by HEGRA telescopes and the energy spectrum was well beyond 10 TeV. The photohadronic model complemented by the extragalactic background radiation (EBL) correction fits well with the flares data observed by both Whipple and HEGRA. Our model predicts a steeper slope of the energy spectrum beyond 10 TeV, which is compatible with the improved analysis of the HEGRA data.},
doi = {10.1140/epjc/s10052-016-4592-9},
journal = {European Physical Journal. C, Particles and Fields},
number = 1,
volume = 77,
place = {United States},
year = {2017},
month = {1}
}