Extended gamma-ray sources around pulsars constrain the origin of the positron 
flux at Earth

HAWC Collaboration,; Abeysekara, A. U.; Albert, A.; Alfaro, R.; Alvarez, C.; Álvarez, J. D.; Arceo, R.; Arteaga-Velázquez, J. C.; Rojas, D. Avila; Solares, H. A. Ayala; Barber, A. S.; Bautista-Elivar, N.; Becerril, A.; Belmont-Moreno, E.; BenZvi, S. Y.; Berley, D.; Bernal, A.; Braun, J.; Brisbois, C.; Caballero-Mora, K. S.; Capistrán, T.; Carramiñana, A.; Casanova, S.; Castillo, M.; Cotti, U.; Cotzomi, J.; de León, S. Coutiño; De León, C.; De la Fuente, E.; Dingus, B. L.; DuVernois, M. A.; Díaz-Vélez, J. C.; Ellsworth, R. W.; Engel, K.; Enríquez-Rivera, O.; Fiorino, D. W.; Fraija, N.; García-González, J. A.; Garfias, F.; Gerhardt, M.; Muñoz, A. González; González, M. M.; Goodman, J. A.; Hampel-Arias, Z.; Harding, J. P.; Hernández, S.; Hernández-Almada, A.; Hinton, James Anthony; Hona, B.; Hui, C. M.; Hüntemeyer, P.; Iriarte, A.; Jardin-Blicq, A.; Joshi, V.; Kaufmann, S.; Kieda, D.; Lara, A.; Lauer, R. J.; Lee, W. H.; Lennarz, D.; Vargas, H. León; Linnemann, J. T.; Longinotti, A. L.; Raya, G. Luis; Luna-García, R.; López-Coto, R-; Malone, K.; Marinelli, S. S.; Martinez, O.; Martinez-Castellanos, I.; Martínez-Castro, J.; Martínez-Huerta, H.; Matthews, J. A.; Miranda-Romagnoli, P.; Moreno, E.; Mostafá, M.; Nellen, L.; Newbold, M.; Nisa, M. U.; Noriega-Papaqui, R.; Pelayo, R.; Pretz, J.; Pérez-Pérez, E. G.; Ren, Z.; Rho, C. D.; Rivière, C.; Rosa-González, D.; Rosenberg, M.; Ruiz Velasco, E.; Salazar, H.; Greus, F. Salesa; Sandoval, A.; Schneider, M.; Schoorlemmer, H.; Sinnis, G.; Smith, A. J.; Springer, R. W.; Surajbali, P.; Taboada, I.; Tibolla, O.; Tollefson, K.; Torres, I.; Ukwatta, T. N.; Vianello, G.; Weisgarber, T.; Westerhoff, S.; Wisher, I. G.; Wood, J.; Yapici, T.; Yodh, G.; Younk, P. W.; Zepeda, A.; Zhou, H.; Guo, F.; Hahn, J.; Li, H.; Zhang, H.

doi:10.1126/science.aan4880

Local TagsRelease HistoryDetailsSummary

Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth

HAWC Collaboration, Abeysekara, A. U., Albert, A., Alfaro, R., Alvarez, C., Álvarez, J. D., et al. (2017). Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth. Science, 358(6365), 911-914. doi:10.1126/science.aan4880.

Item is Released

show all hide all

Basic

show hide

Item Permalink: https://hdl.handle.net/21.11116/0000-0002-5E36-9 Version Permalink: https://hdl.handle.net/21.11116/0000-0002-6189-6

Genre: Journal Article

Files

show Files

hide Files

:

1711.06223.pdf (Preprint), 2MB

View Save

File Permalink:
https://hdl.handle.net/21.11116/0000-0002-5E38-7

Name:
1711.06223.pdf

Description:
File downloaded from arXiv at 2018-10-19 09:56

OA-Status:

Visibility:
Public

MIME-Type / Checksum:
application/pdf / [MD5]

Technical Metadata:

View

Copyright Date:
-

Copyright Info:
-

License:
http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Locators

show

Creators

show

hide

Creators:
HAWC Collaboration, Author
Abeysekara, A. U., Author
Albert, A., Author
Alfaro, R., Author
Alvarez, C., Author
Álvarez, J. D., Author
Arceo, R., Author
Arteaga-Velázquez, J. C., Author
Rojas, D. Avila, Author
Solares, H. A. Ayala, Author
Barber, A. S., Author
Bautista-Elivar, N., Author
Becerril, A., Author
Belmont-Moreno, E., Author
BenZvi, S. Y., Author
Berley, D., Author
Bernal, A., Author
Braun, J., Author
Brisbois, C., Author
Caballero-Mora, K. S., Author
Capistrán, T., AuthorCarramiñana, A., AuthorCasanova, S.¹, Author Castillo, M., AuthorCotti, U., AuthorCotzomi, J., Authorde León, S. Coutiño, AuthorDe León, C., AuthorDe la Fuente, E., AuthorDingus, B. L., AuthorDuVernois, M. A., AuthorDíaz-Vélez, J. C., AuthorEllsworth, R. W., AuthorEngel, K., AuthorEnríquez-Rivera, O., AuthorFiorino, D. W., AuthorFraija, N., AuthorGarcía-González, J. A., AuthorGarfias, F., AuthorGerhardt, M., AuthorMuñoz, A. González, AuthorGonzález, M. M., AuthorGoodman, J. A., AuthorHampel-Arias, Z., AuthorHarding, J. P., AuthorHernández, S., AuthorHernández-Almada, A., AuthorHinton, James Anthony², Author Hona, B., AuthorHui, C. M., AuthorHüntemeyer, P., AuthorIriarte, A., AuthorJardin-Blicq, A.², Author Joshi, V.², Author Kaufmann, S., AuthorKieda, D., AuthorLara, A., AuthorLauer, R. J., AuthorLee, W. H., AuthorLennarz, D., AuthorVargas, H. León, AuthorLinnemann, J. T., AuthorLonginotti, A. L., AuthorRaya, G. Luis, AuthorLuna-García, R., AuthorLópez-Coto, R-², Author Malone, K., AuthorMarinelli, S. S., AuthorMartinez, O., AuthorMartinez-Castellanos, I., AuthorMartínez-Castro, J., AuthorMartínez-Huerta, H., AuthorMatthews, J. A., AuthorMiranda-Romagnoli, P., AuthorMoreno, E., AuthorMostafá, M., AuthorNellen, L., AuthorNewbold, M., AuthorNisa, M. U., AuthorNoriega-Papaqui, R., AuthorPelayo, R., AuthorPretz, J., AuthorPérez-Pérez, E. G., AuthorRen, Z., AuthorRho, C. D., AuthorRivière, C., AuthorRosa-González, D., AuthorRosenberg, M., AuthorRuiz Velasco, E.², Author Salazar, H., AuthorGreus, F. Salesa, AuthorSandoval, A., AuthorSchneider, M., AuthorSchoorlemmer, H.², Author Sinnis, G., AuthorSmith, A. J., AuthorSpringer, R. W., AuthorSurajbali, P.², Author Taboada, I., AuthorTibolla, O.¹, Author Tollefson, K., AuthorTorres, I., AuthorUkwatta, T. N., AuthorVianello, G., AuthorWeisgarber, T., AuthorWesterhoff, S., AuthorWisher, I. G., AuthorWood, J., AuthorYapici, T., AuthorYodh, G., AuthorYounk, P. W., AuthorZepeda, A., AuthorZhou, H., AuthorGuo, F., AuthorHahn, J., AuthorLi, H., AuthorZhang, H., Author more..

Affiliations:
1Division Prof. Dr. Werner Hofmann, MPI for Nuclear Physics, Max Planck Society, ou_904550
2Division Prof. Dr. James A. Hinton, MPI for Nuclear Physics, Max Planck Society, ou_2074298

Content

show

hide

Free keywords: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE

MPINP: HAWC - Abteilung Hinton

Abstract: The unexpectedly high flux of cosmic ray positrons detected at Earth may
originate from nearby astrophysical sources, dark matter, or unknown processes
of cosmic-ray secondary production. We report the detection, using the
HighAltitude Water Cherenkov Observatory (HAWC), of extended tera-electron volt
gamma-ray emission coincident with the locations of two nearby middle-aged
pulsars (Geminga and PSR B0656+14). The HAWC observations demonstrate that
these pulsars are indeed local sources of accelerated leptons, but the measured
tera-electron volt emission profile constrains the diffusion of particles away
from these sources to be much slower than previously assumed. We demonstrate
that the leptons emitted by these objects are therefore unlikely to be the
origin of the excess positrons, which may have a more exotic origin.

Details

show

hide

Language(s):

Dates: Published Online: 2017-11-17

Publication Status: Published online

Pages: 16 pages (including supplementary material), 5 figures

Publishing info: -

Table of Contents: -

Rev. Type: -

Identifiers: arXiv: 1711.06223
DOI: 10.1126/science.aan4880
URI: http://arxiv.org/abs/1711.06223

Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show

hide

Title: Science

Other : Science

Source Genre: Journal

Creator(s):

Affiliations:

Publ. Info: Washington, D.C. : American Association for the Advancement of Science

Pages: - Volume / Issue: 358 (6365) Sequence Number: - Start / End Page: 911 - 914 Identifier: ISSN: 0036-8075
CoNE: https://pure.mpg.de/cone/journals/resource/991042748276600_1