2024ApJ...974..246A

Query : 2024ApJ...974..246A

2024ApJ...974..246A - Astrophys. J., 974, 246 (2024/October-3)

Precise Measurements of TeV Halos around Geminga and Monogem Pulsars with HAWC.

ALBERT A., ALFARO R., ALVAREZ C., ARTEAGA-VELAZQUEZ J.C., AVILA ROJAS D., AYALA SOLARES H.A., BABU R., BELMONT-MORENO E., BERNAL A., CABALLERO-MORA K.S., CAPISTRAN T., CARRAMINANA A., CASANOVA S., COTTI U., COTZOMI J., COUTINO DE LEON S., DE LA FUENTE E., DEPAOLI D., DI LALLA N., DIAZ HERNANDEZ R., DINGUS B.L., DUVERNOIS M.A., DUROCHER M., DIAZ-VELEZ J.C., ENGEL K., ESPINOZA C., FAN K.L., FANG K., FRAIJA N., GARCIA-GONZALEZ J.A., GARFIAS F., GOKSU H., GONZALEZ M.M., GOODMAN J.A., GROETSCH S., HARDING J.P., HERNANDEZ-CADENA S., HERZOG I., HUNTEMEYER P., HUANG D., HUEYOTL-ZAHUANTITLA F., IRIARTE A., JOSHI V., KAUFMANN S., KIEDA D., LARA A., LEE W.H., LEE J., LEON VARGAS H., LINNEMANN J.T., LONGINOTTI A.L., LUIS-RAYA G., MALONE K., MARTINEZ O., MARTINEZ-CASTRO J., MATTHEWS J.A., MIRANDA-ROMAGNOLI P., MONTES J.A., MORALES-SOTO J.A., MORENO E., MOSTAFA M., NAYERHODA A., NELLEN L., NORIEGA-PAPAQUI R., OLIVERA-NIETO L., OMODEI N., PEREZ ARAUJO Y., PEREZ-PEREZ E.G., RHO C.D., ROSA-GONZALEZ D., SALAZAR H., SALAZAR-GALLEGOS D., SANDOVAL A., SCHNEIDER M., SCHWEFER G., SERNA-FRANCO J., SON Y., SPRINGER R.W., TIBOLLA O., TOLLEFSON K., TORRES I., TORRES-ESCOBEDO R., TURNER R., UREA-MENA F., VARELA E., VILLASENOR L., WANG X., WATSON I.J., WILLOX E., WU H., YUN-CARCAMO S., ZHOU H., DE LEON C. (The HAWC Collaboration) and DI MAURO M.

Abstract (from CDS):

We present the most precise measurements to date for the spatial extension and energy spectrum of the γ-ray region between a pulsar's wind nebula and the interstellar medium, better known as the halo, present around Geminga and PSR B0656+14 (Monogem) using ∼2398 days of >1 TeV data collected by the HAWC observatory. We interpret the data using a physically motivated model for the diffuse γ-ray emission generated from positrons and electrons (e±) injected by the pulsar wind nebula and inverse Compton scattering with interstellar radiation fields. We find the morphologies of the regions inside these halos are characterized by an inhibited diffusion that are approximately three orders of magnitudes smaller than the Galactic average. We also obtain the e± emission efficiencies of 6.6% and 5.1%, respectively, for Geminga and Monogem. These results have remarkable consequences for the study of the particle diffusion in the region between the pulsar wind nebulae and the interstellar medium, and for the interpretation of the flux of positrons measured by the AMS-02 experiment above 10 GeV.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): High energy astrophysics - Particle astrophysics - Pulsars - Pulsar wind nebulae

Simbad objects: 6

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Number of rows : 6
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 PSR J0359+5414 Psr 03 59 26.01 +54 14 55.7           ~ 30 0
2 IC 443 SNR 06 17 00.0000000 +22 34 11.998901           ~ 1314 1
3 PSR J0622+3749 Psr 06 22 10.411 +37 49 14.60           ~ 58 0
4 PSR J0631+10 Psr 06 31 27.369 +10 37 05.63           ~ 152 0
5 PSR J0633+1746 Psr 06 33 54.153 +17 46 12.91           ~ 1308 0
6 PSR B0656+14 Psr 06 59 48.18800 +14 14 19.2000   24.85 24.90     ~ 943 1

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