Pith. sign in

REVIEW 1 cited by

Probing the Sea of Cosmic Rays by Measuring Gamma-Ray Emission from Passive Giant Molecular Clouds with 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 2101.08748 v2 pith:KI3Z7BVS submitted 2021-01-21 astro-ph.HE

A. Albert , R. Alfaro , C. Alvarez , J.R. Angeles Camacho , J.C. Arteaga-Velázquez , K.P. Arunbabu , D. Avila Rojas , H.A. Ayala Solares
show 82 more authors
V. Baghmanyan E. Belmont-Moreno S.Y. BenZvi C. Brisbois K.S. Caballero-Mora T. Capistrán A. Carramiñana S. Casanova U. Cotti J. Cotzomi S. Coutiño de León E. De la Fuente R. Diaz Hernandez B.L. Dingus M.A. DuVernois M. Durocher J.C. Díaz-Vélez R.W. Ellsworth K. Engel C. Espinoza K.L. Fan M. Fernández Alonso N. Fraija A. Galván-Gámez D. Garcia J.A. García-González F. Garfias M.M. González J.A. Goodman J.P. Harding S. Hernandez B. Hona D. Huang F. Hueyotl-Zahuantitla P. Hüntemeyer A. Iriarte V. Joshi D. Kieda A. Lara W.H. Lee J. Lee H. León Vargas J.T. Linnemann A.L. Longinotti G. Luis-Raya J. Lundeen K. Malone O. Martinez J. Martínez-Castro J.A. Matthews P. Miranda-Romagnoli J.A. Morales-Soto E. Moreno M. Mostafá A. Nayerhoda L. Nellen M. Newbold M.U. Nisa R. Noriega-Papaqui N. Omodei A. Peisker Y. Pérez Araujo E.G. Pérez-Pérez C.D. Rho D. Rosa-González E. Ruiz-Velasco F. Salesa Greus A. Sandoval M. Schneider J. Serna-Franco A.J. Smith R.W. Springer P. Surajbali M. Tanner K. Tollefson I. Torres R. Torres-Escobedo R. Turner F. Ureña-Mena L. Villaseñor T. Weisgarber E. Willox H. Zhou C. de León
This is my paper · ORCID
classification astro-ph.HE
keywords gamma-raycloudslimitsemissionenergyfluxgmcshawc
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

The study of high-energy gamma rays from passive Giant Molecular Clouds (GMCs) in our Galaxy is an indirect way to characterize and probe the paradigm of the "sea" of cosmic rays in distant parts of the Galaxy. By using data from the High Altitude Water Cherenkov (HAWC) observatory, we measure the gamma-ray flux above 1 TeV of a set of these clouds to test the paradigm. We selected high-galactic latitude clouds that are in HAWC's field-of-view and which are within 1~kpc distance from the Sun. We find no significant excess emission in the cloud regions, nor when we perform a stacked log-likelihood analysis of GMCs. Using a Bayesian approach, we calculate 95\% credible intervals upper limits of the gamma-ray flux and estimate limits on the cosmic-ray energy density of these regions. These are the first limits to constrain gamma-ray emission in the multi-TeV energy range ($>$1 TeV) using passive high-galactic latitude GMCs. Assuming that the main gamma-ray production mechanism is due to proton-proton interaction, the upper limits are consistent with a cosmic-ray flux and energy density similar to that measured at Earth.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Deciphering the spectral bumps of Galactic cosmic rays through gamma-ray observations of nearby molecular clouds

    astro-ph.HE 2025-01 conditional novelty 6.0 of 10

    A nearby cosmic-ray source would make the gamma-ray spectral indices of molecular clouds evolve differently with energy, providing a new observational test.

Pith tools