Galactic Gamma-Ray Diffuse Emission at TeV energies with HAWC Data

HAWC Collaboration
,
D. Grassoq(Author)
,
A. Marinelliq(Author)
,
D. Gaggerot(Author)
,
S. Venturau(Author)
,
O. Fornieriq, t, u(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

139

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Abstract

The Galactic gamma-ray diffuse emission is produced by the interaction of cosmic rays with ambient gas and electromagnetic radiation fields in the interstellar medium (ISM). Studying this radiation helps reconstruct the particle transport mechanisms and the particle distribution in the Galaxy. In this work, we analyze the TeV diffuse emission in a chosen region of the Galactic plane using data collected with the High Altitude Water Cherenkov (HAWC) detector. The energy and spatial distributions of the diffuse Galactic gamma-ray radiation have been studied after subtracting extended and point sources detected with greater than 5 sigma significance from the region map. The spectral feature of the aforementioned emission is compatible with the gamma-ray emissivity obtained from the locally measured proton and heavier nuclei spectrum, convolved with the gas distribution in the Galaxy.

Publication Information

Output type

Research Output: Contribution to journal Conference article Peer-review

Original language

English

Article number

835

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: 85144598043

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