TY - JOUR
T1 - A Chandra detection of diffuse hard X-ray emission associated with the lobes of the radio galaxy 3C 452
AU - Isobe, N.
AU - Tashiro, M.
AU - Makishima, K.
AU - Iyomoto, N.
AU - Suzuki, M.
AU - Murakami, M. M.
AU - Mori, M.
AU - Abe, K.
N1 - Funding Information:
The unpublished VLA image of 3C 452 (R. A. Laing) was downloaded from An Atlas of DRAGNs6 by Leahy, Bridle, & Strom. A part of this work was supported by Grants-in-Aid by the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan (11440074).
PY - 2002/12/1
Y1 - 2002/12/1
N2 - An 80 ks Chandra ACIS observation of the radio galaxy 3C 452 is reported. A diffuse X-ray emission associated with the lobes has been detected with high statistical significance, together with the X-ray nucleus of the host galaxy. The 0.5-5 keV ACIS spectrum of the diffuse emission is described by a two-component model, consisting of a soft thermal plasma emission from the host galaxy halo and a hard nonthermal power-law component. The hard component is ascribed to the inverse Comptonization of cosmic microwave background photons by the synchrotron-emitting electrons in the lobes, because its spectral energy index, 0.68 ± 0.28, is consistent with the radio synchrotron index, 0.78. These results reveal a significant electron dominance in the lobes. The electrons are inferred to have a relatively uniform distribution, while the magnetic field is compressed toward the lobe periphery.
AB - An 80 ks Chandra ACIS observation of the radio galaxy 3C 452 is reported. A diffuse X-ray emission associated with the lobes has been detected with high statistical significance, together with the X-ray nucleus of the host galaxy. The 0.5-5 keV ACIS spectrum of the diffuse emission is described by a two-component model, consisting of a soft thermal plasma emission from the host galaxy halo and a hard nonthermal power-law component. The hard component is ascribed to the inverse Comptonization of cosmic microwave background photons by the synchrotron-emitting electrons in the lobes, because its spectral energy index, 0.68 ± 0.28, is consistent with the radio synchrotron index, 0.78. These results reveal a significant electron dominance in the lobes. The electrons are inferred to have a relatively uniform distribution, while the magnetic field is compressed toward the lobe periphery.
UR - https://www.scopus.com/pages/publications/0041328874
UR - https://www.scopus.com/pages/publications/0041328874#tab=citedBy
U2 - 10.1086/345658
DO - 10.1086/345658
M3 - Article
AN - SCOPUS:0041328874
SN - 0004-637X
VL - 580
SP - L111-L115
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2 II
ER -