Diffuse hard X-ray emission from the Galactic ridge

被引：0
作者：
Yamasaki, NY
Ohashi, T
Takahara, F
Yamauchi, S
Kamae, T
Kaneda, H
Makishima, K
Koyama, K
机构：
[1] IWATE UNIV,FAC HUMANITIES & SOCIAL SCI,MORIOKA,IWATE 020,JAPAN
[2] UNIV TOKYO,DEPT PHYS,BUNKYO KU,TOKYO 113,JAPAN
[3] KYOTO UNIV,FAC SCI,DEPT PHYS,SAKYO KU,KYOTO 60601,JAPAN
来源：
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1996年 / 120卷 / 04期
关键词：
Galaxy; structure; X-rays; ISM; acceleration of particles;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We re-analyze Ginga scanning observation data and present hard X-ray spectra and the distribution along the Galactic ridge. The spectra exhibit a hard component much in excess of single temperature thermal bremsstrahlung with kT = 5 - 10 keV, and the intensity is consistent with a power-law extension from the gamma-ray measurements. This result suggests that there is continuous emission over keV similar to GeV range from an extended region in the Galactic ridge. This implies that freshly accelerated electrons are responsible for the emission.
引用
收藏
页码：C393 / C396
页数：4
相关论文
共 50 条
[31]   Origin of X-Ray and Gamma-Ray Emission from the Galactic Central Region [J].
Chernyshov, D. O. ;
Cheng, K. -S. ;
Dogiel, V. A. ;
Ko, C. M. .
ASTROPHYSICAL JOURNAL, 2017, 835 (02)
[32]   X-ray emission from the Sagittarius D region [J].
Nobukawa, Masayoshi ;
Sawada, Makoto ;
Matsumoto, Hironori ;
Tsuru, Takeshi Go ;
Koyama, Katsuji .
ADVANCES IN SPACE RESEARCH, 2009, 43 (07) :1045-1048
[33]   Unusual diffuse X-ray source in the Galactic center region [J].
Senda, A ;
Murakami, H ;
Koyama, K .
ASTROPHYSICAL JOURNAL, 2002, 565 (02) :1017-1021
[34]   A model for hard X-ray emission from the top of flaring loops [J].
Fletcher, L ;
Martens, PCH .
ASTROPHYSICAL JOURNAL, 1998, 505 (01) :418-431
[35]   The hard X-ray emission from the Vela pulsar wind nebula [J].
Mangano, V. ;
Bocchino, F. ;
Cusumano, G. ;
Massaro, E. ;
Mineo, T. .
ASTROPHYSICS, 2006, 37 (10) :1984-1987
[36]   Hard X-ray emission from a flare-related jet [J].
Bain, H. M. ;
Fletcher, L. .
ASTRONOMY & ASTROPHYSICS, 2009, 508 (03) :1443-1452
[37]   Nonthermal bremsstrahlung and hard X-ray emission from clusters of galaxies [J].
Sarazin, CL ;
Kempner, JC .
ASTROPHYSICAL JOURNAL, 2000, 533 (01) :73-83
[38]   Hard X-ray emission from active region transient brightenings [J].
Nitta, N .
ASTROPHYSICAL JOURNAL, 1997, 491 (01) :402-408
[39]   EGRET observations of the diffuse gamma-ray emission from the Galactic plane [J].
Hunter, SD ;
Bertsch, DL ;
Catelli, JR ;
Dame, TM ;
Digel, SW ;
Dingus, BL ;
Esposito, JA ;
Fichtel, CE ;
Hartman, RC ;
Kanbach, G ;
Kniffen, DA ;
Lin, YC ;
MayerHasselwander, HA ;
Michelson, PF ;
vonMontigny, C ;
Mukherjee, R ;
Nolan, PL ;
Schneid, E ;
Sreekumar, P ;
Thaddeus, P ;
Thompson, DJ .
ASTROPHYSICAL JOURNAL, 1997, 481 (01) :205-240
[40]   Cosmic-Ray Production and X-Ray and Gamma-Ray Emission from the Galactic Center [J].
Dogiel, V. A. ;
Cheng, K. -S. ;
Chernyshov, D. O. ;
Tatischeff, V. ;
Ko, C. -M. ;
Ip, W. -H. ;
Kokubun, M. ;
Maeda, Y. ;
Mitsuda, K. .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2009, 78 :133-137
12345