Pith. sign in

REVIEW

Study of long-term spectral evolution and X-ray and Gamma-ray correlation of blazars seen by HAWC

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 2501.15041 v1 pith:6M5NCF4J submitted 2025-01-25 astro-ph.HE

Study of long-term spectral evolution and X-ray and Gamma-ray correlation of blazars seen by HAWC

R. Alfaro , C. Alvarez , A. Andr\'es , J.C. Arteaga-Vel\'azquez , D. Avila Rojas , H.A. Ayala Solares , R. Babu , E. Belmont-Moreno
show 89 more authors
A. Bernal K.S. Caballero-Mora T. Capistr\'an A. Carrami\~nana F. Carre\'on S. Casanova U. Cotti J. Cotzomi S. Couti\~no de Le\'on E. De la Fuente D. Depaoli N. Di Lalla R. Diaz Hernandez B.L. Dingus M.A. DuVernois M. Durocher J.C. D\'iaz-V\'elez K. Engel C. Espinoza K.L. Fan N. Fraija S. Fraija J.A. Garc\'ia-Gonz\'alez F. Garfias A. Gonzalez Mu\~noz M.M. Gonz\'alez J.A. Goodman S. Groetsch J.P. Harding S. Hern\'andez-Cadena I. Herzog D. Huang F. Hueyotl-Zahuantitla A. Iriarte V. Joshi S. Kaufmann D. Kieda A. Lara W.H. Lee J. Lee H. Le\'on Vargas J.T. Linnemann A.L. Longinotti G. Luis-Raya K. Malone O. Martinez I. Martinez-Castellanos J. Mart\'inez-Castro J.A. Matthews P. Miranda-Romagnoli J.A. Montes E. Moreno M. Mostaf\'a A. Nayerhoda L. Nellen M.U. Nisa R. Noriega-Papaqui N. Omodei M. Osorio Y. P\'erez Araujo E.G. P\'erez-P\'erez C.D. Rho D. Rosa-Gonz\'alez E. Ruiz-Velasco H. Salazar D. Salazar-Gallegos A. Sandoval M. Schneider J. Serna-Franco A.J. Smith Y. Son R.W. Springer O. Tibolla K. Tollefson I. Torres R. Torres-Escobedo R. Turner F. Ure\~na-Mena E. Varela L. Villase\~nor X. Wang I.J. Watson K. Whitaker E. Willox S. Yun-C\'arcamo H. Zhou C. de Le\'on Abraham D. Falcone Fredric Hancock
This is my paper
classification astro-ph.HE
keywords hawcblazarscorrelationdataemissionfluxlong-termx-ray
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
Share X Bluesky LinkedIn Reddit HN
read the original abstract

The HAWC Observatory collected 6 years of extensive data, providing an ideal platform for long-term monitoring of blazars in the Very High Energy (VHE) band, without bias towards specific flux states. HAWC continuously monitors blazar activity at TeV energies, focusing on sources with a redshift of {z \lt 0.3}, based on the Third Fermi-LAT Catalog of High-Energy sources. We specifically focused our analysis on Mrk 421 and Mrk 501, as they are the brightest blazars observed by the HAWC Observatory. With a dataset of 2143 days, this work significantly extends the monitoring previously published, which was based on 511 days of observation. By utilizing HAWC data for the VHE {\gamma}-ray emission in the 300 GeV to 100 TeV energy range, in conjunction with Swift-XRT data for the 0.3 to 10 keV X-ray emission, we aim to explore potential correlations between these two bands. For Mrk 501, we found evidence of a long-term correlation. Additionally, we identified a period in the light curve where the flux was very low for more than two years. On the other hand, our analysis of Mrk 421 measured a strong linear correlation for quasi-simultaneous observations collected by HAWC and Swift-XRT. This result is consistent with a linear dependence and a multiple-zone synchrotron self-Compton model to explain the X-ray and the {\gamma}-ray emission. Finally, as suggested by previous findings, we confirm a harder-when-brighter behavior in the spectral evolution of the flux properties for Mrk 421. These findings contribute to the understanding of blazar emissions and their underlying mechanisms.

discussion (0)

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