Pith. sign in

REVIEW

Long-term monitoring of the TeV emission from Mrk 421 with the ARGO-YBJ experiment

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1106.0896 v1 pith:RLE7DN4Y submitted 2011-06-05 astro-ph.HE

Long-term monitoring of the TeV emission from Mrk 421 with the ARGO-YBJ experiment

The ARGO-YBJ Collaboration , B. Bartoli , P. Bernardini , X.J. Bi , C. Bleve , I. Bolognino , P. Branchini , A. Budano
show 100 more authors
A.K. Calabrese Melcarne P. Camarri Z. Cao A. Cappa R. Cardarelli S. Catalanotti C. Cattaneo P. Celio S.Z. Chen T.L. Chen Y. Chen P. Creti S.W. Cui B.Z. Dai G. D'Al\'i Staiti Danzengluobu M. Dattoli I. De Mitri B. D'Ettorre Piazzoli T. Di Girolamo X.H. Ding G. Di Sciascio C.F. Feng Zhaoyang Feng Zhenyong Feng F. Galeazzi P. Galeotti E. Giroletti Q.B. Gou Y.Q. Guo H.H. He Haibing Hu Hongbo Hu Q. Huang M. Iacovacci R. Iuppa I. James H.Y. Jia Labaciren H.J. Li J.Y. Li X.X. Li G. Liguori C. Liu C.Q. Liu J. Liu M.Y. Liu H. Lu X.H. Ma G. Mancarella S.M. Mari G. Marsella D. Martello S. Mastroianni P. Montini C.C. Ning A. Pagliaro M. Panareo B. Panico L. Perrone P. Pistilli X.B. Qu E. Rossi F. Ruggieri P. Salvini R. Santonico P.R. Shen X.D. Sheng F. Shi C. Stanescu A. Surdo Y.H. Tan P. Vallania S. Vernetto C. Vigorito B. Wang H. Wang C.Y. Wu H.R. Wu B. Xu L. Xue Y.X. Yan Q.Y. Yang X.C. Yang Z.G. Yao A.F. Yuan M. Zha H.M. Zhang Jilong Zhang Jianli Zhang L. Zhang P. Zhang X.Y. Zhang Y. Zhang Zhaxiciren Zhaxisangzhu X.X. Zhou F.R. Zhu Q.Q. Zhu G. Zizzi
This is my paper
classification astro-ph.HE
keywords x-rayfluxgamma-rayobservedargo-ybjbandslong-termmonitoring
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

ARGO-YBJ is an air shower detector array with a fully covered layer of resistive plate chambers. It is operated with a high duty cycle and a large field of view. It continuously monitors the northern sky at energies above 0.3 TeV. In this paper, we report a long-term monitoring of Mrk 421 over the period from 2007 November to 2010 February. This source was observed by the satellite-borne experiments Rossi X-ray Timing Explorer and Swift in the X-ray band. Mrk 421 was especially active in the first half of 2008. Many flares are observed in both X-ray and gamma-ray bands simultaneously. The gamma-ray flux observed by ARGO-YBJ has a clear correlation with the X-ray flux. No lag between the X-ray and gamma-ray photons longer than 1 day is found. The evolution of the spectral energy distribution is investigated by measuring spectral indices at four different flux levels. Hardening of the spectra is observed in both X-ray and gamma-ray bands. The gamma-ray flux increases quadratically with the simultaneously measured X-ray flux. All these observational results strongly favor the synchrotron self-Compton process as the underlying radiative mechanism.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.