2023ApJ...944L..29A

Query : 2023ApJ...944L..29A

2023ApJ...944L..29A - Astrophys. J., 944, L29 (2023/February-3)

HAWC Detection of a TeV Halo Candidate Surrounding a Radio-quiet Pulsar.

ALBERT A., ALFARO R., ARTEAGA-VELAZQUEZ J.C., AYALA SOLARES H.A., BELMONT-MORENO E., CAPISTRAN T., CARRAMINANA A., CASANOVA S., COTZOMI J., COUTINO DE LEON S., DE LA FUENTE E., DE LEON C., DIAZ HERNANDEZ R., DUVERNOIS M.A., DIAZ-VELEZ J.C., ESPINOZA C., FAN K.L., FRAIJA N., FANG K., GARCIA-GONZALEZ J.A., GARFIAS F., JARDIN-BLICQ A., GONZALEZ M.M., GOODMAN J.A., HARDING J.P., HERNANDEZ S., HUANG D., HUEYOTL-ZAHUANTITLA F., HUNTEMEYER P., IRIARTE A., JOSHI V., LARA A., LEE J., LEON VARGAS H., LINNEMANN J.T., LONGINOTTI A.L., LUIS-RAYA G., MALONE K., MARTINEZ O., MARTINEZ-CASTRO J., MATTHEWS J.A., MORALES-SOTO J.A., MORENO E., MOSTAFA M., NAYERHODA A., NELLEN L., NEWBOLD M., NISA M.U., PEREZ ARAUJO Y., SON Y., PEREZ-PEREZ E.G., RHO C.D., ROSA-GONZALEZ D., SANDOVAL A., SCHNEIDER M., SERNA-FRANCO J., SMITH A.J., SPRINGER R.W., TOLLEFSON K., TORRES I., TORRES-ESCOBEDO R., WANG X., WHITAKER K., WILLOX E., ZHOU H. (The HAWC Collaboration)

Abstract (from CDS):

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.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Pulsars - Gamma-ray astronomy - High energy astrophysics

Simbad objects: 7

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Number of rows : 7
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 B0355+54 Psr 03 58 53.7165 +54 13 13.727           ~ 465 1
2 PSR J0359+5414 Psr 03 59 26.01 +54 14 55.7           ~ 30 0
3 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
4 PSR J0622+3749 Psr 06 22 10.411 +37 49 14.60           ~ 58 0
5 PSR J0633+1746 Psr 06 33 54.153 +17 46 12.91           ~ 1308 0
6 NAME MONOGEM SNR SNR 06 58 50 +13 55.9           ~ 124 0
7 PSR B1823-13 Psr 18 26 13.06 -13 34 48.1           ~ 460 1

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