2016ApJ...827...41Y


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET15:56:05

2016ApJ...827...41Y - Astrophys. J., 827, 41-41 (2016/August-2)

Studying the SGR 1806-20/Cl* 1806-20 region using the Fermi large area telescope.

YEUNG P.K.H., KONG A.K.H., TAM P.H.T., LIN L.C.C., HUI C.Y., HU C.-P. and CHENG K.S.

Abstract (from CDS):

The region around SGR 1806-20 and its host stellar cluster Cl* 1806-20 is a potentially important site of particle acceleration. The soft γ-ray repeater and Cl* 1806-20, which also contains several very massive stars including a luminous blue variable hypergiant LBV 1806-20, are capable of depositing a large amount of energy to the surroundings. Using the data taken with the Fermi Large Area Telescope (LAT), we identified an extended LAT source to the southwest of Cl* 1806-20. The centroid of the 1-50 GeV emission is consistent with that of HESS J1808-204 (until now unidentified). The LAT spectrum is best-fit by a broken power law with the break energy {E}_{\}=297±15 MeV. The index above E_b is 2.60±0.04 and is consistent with the flux and spectral index above 100 GeV for HESS J1808-204, suggesting an association between the two sources. Meanwhile, the interacting supernova remnant SNR G9.7-0.0 is also a potential contributor to the LAT flux. A tentative flux enhancement at the MeV band during a 45 day interval (2011 January 21-March 7) is also reported. We discuss possible origins of the extended LAT source in the context of both leptonic and hadronic scenarios.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): cosmic rays - ISM: individual objects: SNR G9.7-0.0, HESS J1808-204, W31 - pulsars: individual: SGR 1806-20 - stars: magnetars - stars: magnetars

Simbad objects: 18

goto Full paper

goto View the reference in ADS

Number of rows : 18

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Sgr J0418+5729 gam 04 18 33.867 +57 32 22.91           ~ 188 0
2 IC 443 SNR 06 18 02.7 +22 39 36           ~ 1112 1
3 HESS J1713-381 gam 17 13 -38.1           ~ 29 1
4 [AAB2008] 1 X 17 14 05.758 -38 10 31.32           ~ 48 1
5 SNR G006.4-00.1 SNR 18 01 22.7 -23 17 20           ~ 660 1
6 SNR G009.7-00.0 SNR 18 07.4 -20 35           ~ 16 0
7 Fermi J1808.2-2029 gam 18 08 00.0 -20 24 00           ~ 11 0
8 2FGL J1808.5-2037c gam 18 08 34 -20 37.1           ~ 6 0
9 NAME 1806-20 Star Cluster OpC 18 08 39.0 -20 24 39           ~ 33 1
10 AX J1808.6-2024 ISM 18 08 39 -20 24.6           ~ 130 3
11 [CWD97] MC-16 MoC 18 08 39.32 -20 24 39.5           ~ 4 0
12 [CWD97] MC+73 MoC 18 08 39.32 -20 24 39.5           ~ 5 0
13 PSR J1808-2024 Psr 18 08 39.32 -20 24 40.1           ~ 1117 2
14 [KMN95] Star A s*b 18 08 40.312 -20 24 41.14           LBV 40 3
15 3FGL J1809.2-2016c gam 18 09 18 -20 16.9           ~ 5 0
16 W 31 SFR 18 10 28.6 -19 55 51           ~ 241 0
17 SNR G034.6-00.5 SNR 18 56 10.650 +01 13 21.30           ~ 833 2
18 SNR G049.1-00.1 SNR 19 23 19.300 +14 09 21.00           ~ 243 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2016ApJ...827...41Y and select 'bookmark this link' or equivalent in the popup menu


2020.11.25-15:56:05

© Université de Strasbourg/CNRS

    • Contact