Integral observations of her X-1

被引：0

作者：

Klochkov, D. ^{[1
]}

Staubert, R. ^{[1
]}

Tsygankov, S. ^{[3
]}

Lutovinov, A. ^{[3
]}

Postnov, K. P. ^{[2
]}

Shakura, N. I. ^{[2
]}

Potanin, S. A.

Ferrigno, C.

Kreykenbohm, I. ^{[1
,4
]}

Wilms, J. ^{[5
]}

机构：

[1] Univ Tubingen, Inst Astron & Astrophys, Sand 1, D-72076 Tubingen, Germany

[2] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119992, Russia

[3] Space Res Inst, Moscow 117997, Russia

[4] INTEGRAL Sci Data Ctr, CH-1290 Chavannes Des Bois, Switzerland

[5] Univ Erlangen Nurnberg, Astron Inst, D-96049 Bamberg, Germany

来源：

6TH INTEGRAL WORKSHOP: THE OBSCURED UNIVERSE | 2007年 / 622卷

关键词：

X-ray binaries; accretion disks; neutron stars;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

First results of observations of the low mass X-ray binary Her X-1/HZ Her performed by the INTEGRAL satellite in July-August 2005 are presented. A significant part of one 35 day main-on state was covered. The cyclotron line in the X-ray spectrum is well observed and its position and shape, as well as its variability with time and phase of the 1.24 s pulsation are explored. X-ray pulse profiles for different energy bands are studied throughout the observation. The pulse period is found to vary on short time scales revealing a dynamical spin-up/spin-down behavior. Results of simultaneous optical observations of HZ Her are also discussed.

引用

页码：461 / +

页数：2

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