SPI measurements of the diffuse galactic hard X-ray continuum

被引：0

作者：

Strong, AW ^{[1
]}

Diehl, R ^{[1
]}

Halloin, H ^{[1
]}

Schönfelder, V ^{[1
]}

Bouchet, L ^{[1
]}

Mandrou, P ^{[1
]}

Teegarden, BJ ^{[1
]}

Lebrun, F ^{[1
]}

Terrier, R ^{[1
]}

机构：

[1] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany

来源：

PROCEEDINGS OF THE 5TH INTEGRAL WORKSHOP ON THE INTEGRAL UNIVERSE | 2004年 / 552卷

关键词：

gamma rays; X-rays; Galaxy; interstellar medium; cosmic rays; compact sources; INTEGRAL; SPI;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

INTEGRAL Spectrometer SPI data from the first year of the Galactic Centre Deep Exposure has been analysed for the diffuse continuum from the Galactic ridge. A new catalogue of sources from the INTEGRAL Imager IBIS has been used to account for their contribution to the celestial signal. Apparently diffuse emission is detected at a level similar to 10% of the total source flux. A comparison of the spectrum of diffuse emission with that from an analysis of IBIS data alone shows that they are consistent. The question of the contribution of unresolved sources to this ridge emission is still open.

引用

页码：507 / 511

页数：5

共 19 条

[11] Positron annihilation radiation from the inner Galaxy [J].

Kinzer, RL ;

Milne, PA ;

Kurfess, JD ;

Strickman, MS ;

Johnson, WN ;

Purcell, WR .

ASTROPHYSICAL JOURNAL, 2001, 559 (01) :282-295

[12] Compact sources as the origin of the soft γ-ray emission of the Milky Way [J].

Lebrun, F ;

Terrier, R ;

Bazzano, A ;

Bélanger, G ;

Bird, A ;

Bouchet, L ;

Dean, A ;

Del Santo, M ;

Goldwurm, A ;

Lund, N ;

Morand, H ;

Parmar, A ;

Paul, J ;

Roques, JP ;

Schönfelder, V ;

Strong, AW ;

Ubertini, P ;

Walter, R ;

Winkler, C .

NATURE, 2004, 428 (6980) :293-296

[13] Supernovae and positron annihilation radiation [J].

Milne, PA ;

Kurfess, JD ;

Kinzer, RL ;

Leising, MD .

NEW ASTRONOMY REVIEWS, 2002, 46 (8-10) :553-558

[14]

Purcell W.R., 1996, A A, V120, P389

[15] Distribution of the Galactic bulge emission at |b| > 2° according to the RXTE Galactic Center scans [J].

Revnivtsev, M .

ASTRONOMY & ASTROPHYSICS, 2003, 410 (03) :865-870

[16] ASCA observation of X-ray emission from the Galactic ridge [J].

Tanaka, Y .

ASTRONOMY & ASTROPHYSICS, 2002, 382 (03) :1052-1060

[17]

Tanaka Y, 1999, ASTRON NACHR, V320, P181, DOI 10.1002/1521-3994(199908)320:4/5<181::AID-ASNA181>3.0.CO

[18]

2-#

[19] Measurement of the galactic X-ray/gamma-ray background radiation: Contribution of discrete sources [J].

Valinia, A ;

Kinzer, RL ;

Marshall, FE .

ASTROPHYSICAL JOURNAL, 2000, 534 (01) :277-282

← 1 2 →