Authors

A. Albert, Los Alamos National Laboratory
R. Alfaro, Universidad Nacional Autónoma de México
J. C. Arteaga-Velázquez, Universidad Michoacana de San Nicolás de Hidalgo
H. A. Ayala Solares, Eberly College of Science
E. Belmont-Moreno, Universidad Nacional Autónoma de México
T. Capistrán, Universidad Nacional Autónoma de México
A. Carramiñana, Instituto Nacional de Astrofisica Optica y Electronica
S. Casanova, Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
J. Cotzomi, Benemerita Universidad Autonoma de Puebla
S. Coutiño De León, University of Wisconsin-Madison
E. De la Fuente, Universidad de Guadalajara
C. de León, Universidad Michoacana de San Nicolás de Hidalgo
R. Diaz Hernandez, Instituto Nacional de Astrofisica Optica y Electronica
M. A. DuVernois, University of Wisconsin-Madison
J. C. Díaz-Vélez, Universidad de Guadalajara
C. Espinoza, Universidad Nacional Autónoma de México
K. L. Fan, University of Maryland, College Park
N. Fraija, Universidad Nacional Autónoma de México
K. Fang, University of Wisconsin-Madison
J. A. García-González, Tecnologico de Monterrey
F. Garfias, Universidad Nacional Autónoma de México
A. Jardin-Blicq, LP2I - Laboratoire de Physique des Deux Infinis Bordeaux
M. M. González, Universidad Nacional Autónoma de México
J. A. Goodman, University of Maryland, College Park
J. P. Harding, Los Alamos National Laboratory
S. Hernandez, Universidad Nacional Autónoma de México
D. Huang, Michigan Technological UniversityFollow
F. Hueyotl-Zahuantitla, Universidad Autónoma de Chiapas
P. Hüntemeyer, Michigan Technological UniversityFollow
A. Iriarte, Universidad Nacional Autónoma de México
V. Joshi, Friedrich-Alexander-Universität Erlangen-Nürnberg
et. al.

Document Type

Article

Publication Date

2-15-2023

Department

Department of Physics

Abstract

Extended very-high-energy (VHE; 0.1-100 TeV) γ-ray emission has been observed around several middle-aged pulsars and referred to as “TeV halos.” Their formation mechanism remains under debate. It is also unknown whether they are ubiquitous or related to a certain subgroup of pulsars. With 2321 days of observation, the High Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory detected VHE γ-ray emission at the location of the radio-quiet pulsar PSR J0359+5414 with >6σ significance. By performing likelihood tests with different spectral and spatial models and comparing the TeV spectrum with multiwavelength observations of nearby sources, we show that this excess is consistent with a TeV halo associated with PSR J0359+5414, though future observation of HAWC and multiwavelength follow-ups are needed to confirm this nature. This new halo candidate is located in a noncrowded region in the outer galaxy. It shares similar properties to the other halos but its pulsar is younger and radio-quiet. Our observation implies that TeV halos could commonly exist around pulsars and their formation does not depend on the configuration of the pulsar magnetosphere.

Publisher's Statement

© 2023. The Author(s). Published by the American Astronomical Society. Publisher’s version of record: https://doi.org/10.3847/2041-8213/acb5ee

Publication Title

Astrophysical Journal Letters

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Version

Publisher's PDF

Included in

Physics Commons

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.