Study of the eHWC J1825-134 Region at Highest Energies with HWAC

HAWC Collaboration
,
A. U. Abeysekaraae(Author)
,
A. Albertag(Author)
,
R. Alfaroc(Author)
,
C. Alvarezad(Author)
,
J. D. Álvareze(Author)

aDepartamento de Física y Matemáticas
,
bInstituto Tecnologico de Estudios Superiores de Monterrey
,
cUniversidad Nacional Autónoma de México
,
dBenemerita Universidad Autonoma de Puebla
,
eUniversidad Michoacana de San Nicolas de Hidalgo
,
fInstituto Politécnico Nacional

Research Output: Contribution to journal Conference article Peer-review

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Author count

134

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Abstract

eHWC J1825-134 is one of the brightest Galactic γ-ray sources above 50 TeV observed by High Altitude Water Cherenkov γ-Ray Observatory (HAWC). Detailed morphological studies have revealed a new point-like source inside this region with a spectral energy distribution extending beyond 200 TeV without any cutoff. These very-high-energy γ rays emission can originate from leptonic or hadronic processes. The new point-like source is located in a region containing PWNe and a high density giant molecular cloud [MML2017]99. If the source emission is associated with the hadronic scenario the TeV γ rays may have been produced by cosmic rays colliding with ambient gas. If this were the case, eHWC J1825-134 is an indicator of the existence of a galactic PeVatron in the region that accelerates particles up to PeV energies.

Publication Information

Output type

Research Output: Contribution to journal Conference article Peer-review

Original language

English

Article number

840

Journal (Volume, Issue Number)

Proceedings of Science (Volume 395)

Publication milestones

Published - 18/03/2022

Publication status

Published - 18/03/2022

External Publication IDs

Scopus: 85145008721

Access to documents

Related Event

Title

37th International Cosmic Ray Conference, ICRC 2021

Event type

Conference

Date

12/07/2021 - 23/07/2021

Location

Virtual, BerlinGermany

Funding Details

We acknowledge the support from: the US National Science Foundation (NSF); the US Department of Energy Office of High-Energy Physics; the Laboratory Directed Research and Development (LDRD) program of Los Alamos National Laboratory; Consejo Nacional de Ciencia y Tecnología (CONACyT), México, grants 271051, 232656, 260378, 179588, 254964, 258865, 243290, 132197, A1-S-46288, A1-S-22784, cátedras 873, 1563, 341, 323, Red HAWC, México; DGAPA-UNAM grants IG101320, IN111716-3, IN111419, IA102019, IN110621, IN110521; VIEP-BUAP; PIFI 2012, 2013, PROFOCIE 2014, 2015; the University of Wisconsin Alumni Research Foundation; the Institute of Geophysics, Planetary Physics, and Signatures at Los Alamos National Laboratory; Polish Science Centre grant, DEC-2017/27/B/ST9/02272; Coordinación de la Investigación Científica de la Universidad Michoacana; Royal Society - Newton Advanced Fellowship 180385; General-itat Valenciana, grant CIDEGENT/2018/034; Chulalongkorn University’s CUniverse (CUAASC) grant; Coordinación General Académica e Innovación (CGAI-UdeG), PRODEP-SEP UDG-CA-499; Institute of Cosmic Ray Research (ICRR), University of Tokyo, H.F. acknowledges support by NASA under award number 80GSFC21M0002. We also acknowledge the significant contributions over many years of Stefan Westerhoff, Gaurang Yodh and Arnulfo Zepeda Dominguez, all deceased members of the HAWC collaboration. Thanks to Scott Delay, Luciano Díaz and Eduardo Murrieta for technical support. We acknowledge the support from: the US National Science Foundation (NSF); the US Department of Energy Office of High-Energy Physics; the Laboratory Directed Research and Development (LDRD) program of Los Alamos National Laboratory; Consejo Nacional de Ciencia y Tecnología (CONACyT), México, grants 271051, 232656, 260378, 179588, 254964, 258865, 243290, 132197, A1-S-46288, A1-S-22784, cátedras 873, 1563, 341, 323, Red HAWC, México; DGAPA-UNAM grants IG101320, IN111716-3, IN111419, IA102019, IN110621, IN110521; VIEP-BUAP; PIFI 2012, 2013, PROFOCIE 2014, 2015; the University of Wisconsin Alumni Research Foundation; the Institute of Geophysics, Planetary Physics, and Signatures at Los Alamos National Laboratory; Polish Science Centre grant, DEC-2017/27/B/ST9/02272; Coordinación de la Investigación Científica de la Universidad Michoacana; Royal Society - Newton Advanced Fellowship 180385; Generalitat Valenciana, grant CIDEGENT/2018/034; Chulalongkorn University's CUniverse (CUAASC) grant; Coordinación General Académica e Innovación (CGAI-UdeG), PRODEP-SEP UDG-CA-499; Institute of Cosmic Ray Research (ICRR), University of Tokyo, H.F. acknowledges support by NASA under award number 80GSFC21M0002. We also acknowledge the significant contributions over many years of Stefan Westerhoff, Gaurang Yodh and Arnulfo Zepeda Dominguez, all deceased members of the HAWC collaboration. Thanks to Scott Delay, Luciano Díaz and Eduardo Murrieta for technical support.

FundersFunding numbers

CUAASC

Chulalongkorn University's CUniverse

Coordinación General Académica e Innovación

PRODEP-SEP UDG-CA-499

Coordinación de la Investigación Científica de la Universidad Michoacana

Institute of Geophysics

Planetary Physics

Polish Science Centre

DEC-2017/27/B/ST9/02272

US Department of Energy Office of High-Energy Physics

University of Wisconsin Alumni Research Foundation

VIEP-BUAP

NSF

NASA

80GSFC21M0002

NASA

LDRD

LANL

Royal Society

180385

Royal Society

CONACYT

271051, A1-S-46288, 254964, 258865, A1-S-22784, 260378, 132197, 179588, 232656, 243290