The Ultra-High-Energy Source MGRO J1908+06

HAWC Collaboration
,
A. U. Abeysekara(Author)
,
A. Albert(Author)
,
R. Alfaro(Author)
,
C. Alvarez(Author)
,
J. D. Álvarez(Author)

University of Utah
,
Los Alamos National Laboratory
,
Universidad Nacional Autónoma de México
,
Universidad Autonoma de Chiapas
,
Universidad Michoacana de San Nicolas de Hidalgo
,
Pennsylvania State University

Research Output:

Contribution to journal

Conference article

Peer-review

Publication metrics

Metrics

SciVal

Author count

134

SciVal

Paper percentile

Abstract

The TeV gamma-ray source MGRO J1908+06 is one of the highest-energy sources known, with observed emission by the High Altitude Water Cherenkov (HAWC) Observatory extending well past 100 TeV. The source exhibits both energy-dependent morphology and a spatially-dependent spectral index. The emission is likely to be dominantly leptonic, and associated with the radio-quiet PSR J1907+0602. However, one-population models do not describe the data well; a second particle population is needed to explain the shape of the spectral energy distribution at the highest energies. This component can be well-described by either leptonic or hadronic hypotheses. We discuss this feature and implications for detection by multi-wavelength and multi-messenger experiments.

Publication Information

Output type

Research Output:

Contribution to journal

Conference article

Peer-review

Original language

English

Article number

810

Journal (Volume, Issue Number)

Proceedings of Science (Volume 395)

Publication milestones

Published - 18/03/2022

Publication status

Published - 18/03/2022

Publication IDs

Scopus: 85144389574

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