The spectrum of the crab nebula and highest energy photons measured by HAWC

HAWC Collaboration; J. T. Linnemann; J. P. Harding; J. Lundeen; S. Marinelli; H. Martínez-Huerta

The spectrum of the crab nebula and highest energy photons measured by HAWC

HAWC Collaboration, J. T. Linnemann^*, J. P. Harding, J. Lundeen, S. Marinelli, H. Martínez-Huerta

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

HAWC has developed new energy algorithms using an artificial neural network for event-by-event reconstruction of Very High Energy (VHE) primary gamma ray energies. Unlike previous estimation methods for HAWC photons, these estimate photon energies with good energy precision and accuracy in a range from 1 TeV to greater than 100 TeV. Photon emission at the highest energies is of interest in understanding acceleration mechanisms of astrophysical sources and where the acceleration might cut off. We apply the new HAWC reconstruction to present the preliminary measurement of the highest energies at which photons are emitted by the Crab Nebula and by six additional sources in the galactic plane which emit above 50 TeV. We have observed photons above 200 TeV at 95% confidence. We also compare fits to the HAWC Crab spectrum with other measurements and theoretical models of the Crab spectrum.

Original language	English
Title of host publication	The spectrum of the crab nebula and highest energy photons measured by HAWC
Volume	358
Publication status	Published - 2019
Externally published	Yes
Event	36th International Cosmic Ray Conference, ICRC 2019 - Madison, United States Duration: 24 Jul 2019 → 1 Aug 2019

Publication series

Name	Proceedings of Science
Publisher	Sissa Medialab Srl

Conference

Conference	36th International Cosmic Ray Conference, ICRC 2019
Country/Territory	United States
City	Madison
Period	24/7/19 → 1/8/19

Bibliographical note

Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons

All Science Journal Classification (ASJC) codes

General

Access to Document

https://pos.sissa.it/358/723/

Cite this

@inproceedings{80b3cd9e94104cbcaa862a272585bdb3,

title = "The spectrum of the crab nebula and highest energy photons measured by HAWC",

abstract = "HAWC has developed new energy algorithms using an artificial neural network for event-by-event reconstruction of Very High Energy (VHE) primary gamma ray energies. Unlike previous estimation methods for HAWC photons, these estimate photon energies with good energy precision and accuracy in a range from 1 TeV to greater than 100 TeV. Photon emission at the highest energies is of interest in understanding acceleration mechanisms of astrophysical sources and where the acceleration might cut off. We apply the new HAWC reconstruction to present the preliminary measurement of the highest energies at which photons are emitted by the Crab Nebula and by six additional sources in the galactic plane which emit above 50 TeV. We have observed photons above 200 TeV at 95% confidence. We also compare fits to the HAWC Crab spectrum with other measurements and theoretical models of the Crab spectrum.",

author = "{HAWC Collaboration} and Linnemann, {J. T.} and Harding, {J. P.} and J. Lundeen and S. Marinelli and H. Mart{\'i}nez-Huerta",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons; 36th International Cosmic Ray Conference, ICRC 2019 ; Conference date: 24-07-2019 Through 01-08-2019",

year = "2019",

language = "English",

volume = "358",

series = "Proceedings of Science",

publisher = "Sissa Medialab Srl",

booktitle = "The spectrum of the crab nebula and highest energy photons measured by HAWC",

}

HAWC Collaboration, Linnemann, JT, Harding, JP, Lundeen, J, Marinelli, S & Martínez-Huerta, H 2019, The spectrum of the crab nebula and highest energy photons measured by HAWC. in The spectrum of the crab nebula and highest energy photons measured by HAWC. vol. 358, Proceedings of Science, 36th International Cosmic Ray Conference, ICRC 2019, Madison, United States, 24/7/19. <https://pos.sissa.it/358/723/>

TY - GEN

T1 - The spectrum of the crab nebula and highest energy photons measured by HAWC

AU - HAWC Collaboration

AU - Linnemann, J. T.

AU - Harding, J. P.

AU - Lundeen, J.

AU - Marinelli, S.

AU - Martínez-Huerta, H.

PY - 2019

Y1 - 2019

N2 - HAWC has developed new energy algorithms using an artificial neural network for event-by-event reconstruction of Very High Energy (VHE) primary gamma ray energies. Unlike previous estimation methods for HAWC photons, these estimate photon energies with good energy precision and accuracy in a range from 1 TeV to greater than 100 TeV. Photon emission at the highest energies is of interest in understanding acceleration mechanisms of astrophysical sources and where the acceleration might cut off. We apply the new HAWC reconstruction to present the preliminary measurement of the highest energies at which photons are emitted by the Crab Nebula and by six additional sources in the galactic plane which emit above 50 TeV. We have observed photons above 200 TeV at 95% confidence. We also compare fits to the HAWC Crab spectrum with other measurements and theoretical models of the Crab spectrum.

AB - HAWC has developed new energy algorithms using an artificial neural network for event-by-event reconstruction of Very High Energy (VHE) primary gamma ray energies. Unlike previous estimation methods for HAWC photons, these estimate photon energies with good energy precision and accuracy in a range from 1 TeV to greater than 100 TeV. Photon emission at the highest energies is of interest in understanding acceleration mechanisms of astrophysical sources and where the acceleration might cut off. We apply the new HAWC reconstruction to present the preliminary measurement of the highest energies at which photons are emitted by the Crab Nebula and by six additional sources in the galactic plane which emit above 50 TeV. We have observed photons above 200 TeV at 95% confidence. We also compare fits to the HAWC Crab spectrum with other measurements and theoretical models of the Crab spectrum.

UR - http://www.scopus.com/inward/record.url?scp=85086260574&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85086260574&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:85086260574

VL - 358

T3 - Proceedings of Science

BT - The spectrum of the crab nebula and highest energy photons measured by HAWC

T2 - 36th International Cosmic Ray Conference, ICRC 2019

Y2 - 24 July 2019 through 1 August 2019

ER -

The spectrum of the crab nebula and highest energy photons measured by HAWC

Abstract

Publication series

Conference

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

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