2015ApJ...806...20B

Query : 2015ApJ...806...20B

2015ApJ...806...20B - Astrophys. J., 806, 20 (2015/June-2)

Study of the diffuse gamma-ray emission from the galactic plane with ARGO-YBJ.

BARTOLI B., BERNARDINI P., BI X.J., BRANCHINI P., BUDANO A., CAMARRI P., CAO Z., CARDARELLI R., CATALANOTTI S., CHEN S.Z., CHEN T.L., CRETI P., CUI S.W., DAI B.Z., D'AMONE A., DANZENGLUOBU, DE MITRI I., D'ETTORRE PIAZZOLI B., GIROLAMO T.D., SCIASCIO G.D., FENG C.F., FENG Z., FENG Z., GOU Q.B., GUO Y.Q., HE H.H., HU H., HU H., IACOVACCI M., IUPPA R., JIA H.Y., LABACIREN, LI H.J., LIGUORI G., LIU C., LIU J., LIU M.Y., LU H., MA L.L., MA X.H., MANCARELLA G., MARI S.M., MARSELLA G., MARTELLO D., MASTROIANNI S., MONTINI P., NING C.C., PANAREO M., PERRONE L., PISTILLI P., RUGGIERI F., SALVINI P., SANTONICO R., SHEN P.R., SHENG X.D., SHI F., SURDO A., TAN Y.H., VALLANIA P., VERNETTO S., VIGORITO C., WANG H., WU C.Y., WU H.R., XUE L., YANG Q.Y., YANG X.C., YAO Z.G., YUAN A.F., ZHA M., ZHANG H.M., ZHANG L., ZHANG X.Y., ZHANG Y., ZHAO J., ZHAXICIREN, ZHAXISANGZHU, ZHOU X.X., ZHU F.R., ZHU Q.Q., ZIZZI G. (The ARGO-YBJ Collaboration)

Abstract (from CDS):

The events recorded by ARGO-YBJ in more than five years of data collection have been analyzed to determine the diffuse gamma-ray emission in the Galactic plane at Galactic longitudes 25° < l < 100° and Galactic latitudes. The energy range covered by this analysis, from Å350 GeV to Å2 TeV, allows the connection of the region explored by Fermi with the multi-TeV measurements carried out by Milagro. Our analysis has been focused on two selected regions of the Galactic plane, i.e., 40° < l < 100° and 65° < l < 85° (the Cygnus region), where Milagro observed an excess with respect to the predictions of current models. Great care has been taken in order to mask the most intense gamma-ray sources, including the TeV counterpart of the Cygnus cocoon recently identified by ARGO-YBJ, and to remove residual contributions. The ARGO-YBJ results do not show any excess at sub-TeV energies corresponding to the excess found by Milagro, and are consistent with the predictions of the Fermi model for the diffuse Galactic emission. From the measured energy distribution we derive spectral indices and the differential flux at 1 TeV of the diffuse gamma-ray emission in the sky regions investigated.

Abstract Copyright: ∼

Journal keyword(s): cosmic rays - diffuse radiation - Galaxy: disk - methods: observational

Simbad objects: 19

goto Full paper

goto View the references in ADS

Number of rows : 19
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 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
2 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
3 ARGO J1839-0627 Psr 18 40 55.0 -05 33 00           ~ 66 1
4 PSR J1849-0001 Psr 18 49 01.83 -00 01 19.1           ~ 76 0
5 4FGL J1857.7+0246e Psr 18 57 11.0 +02 40 00           ~ 59 0
6 HESS J1858+020 gam 18 58 20.0 +02 05 24           ~ 45 0
7 ARGO J1907+0627 gam 19 08 12.24 +06 23 30.8           ~ 94 0
8 HESS J1923+141 gam 19 23.0 +14 06           ~ 13 0
9 W 51 SNR 19 23 50 +14 06.0           ~ 1352 1
10 PSR J1928+1746 Psr 19 28 42.8 +17 46 27           ~ 62 0
11 SNR G054.1+00.3 SNR 19 30 10.6 +18 50 22           ~ 271 1
12 1RXS J194356.1+211731 Bla 19 43 56.24400 +21 18 23.3784           ~ 99 1
13 VER J2016+372 gam 20 16 04.0 +37 13 33           ~ 11 0
14 ARGO J2021+4038 gam 20 19 00.0 +40 42 00           ~ 33 1
15 2HWC J2019+367 gam 20 19.8 +36 48           ~ 24 0
16 PSR J2030+3641 Psr 20 30 00.241 +36 41 27.30           ~ 43 2
17 NAME Cyg X Cld 20 30 04.7973633 +40 51 36.002197           ~ 962 1
18 TeV J2032+4130 gam 20 31.7 +41 31           ~ 148 0
19 NAME Cyg Complex reg 20 32 +45.0           ~ 667 0

To bookmark this query, right click on this link: simbad:objects in 2015ApJ...806...20B and select 'bookmark this link' or equivalent in the popup menu