THE X-RAY INTENSITY-HARDNESS RATIO RELATION IN LMXRB

被引：2

作者：

APPARAO, KMV

TARAFDAR, SP

机构：

[1] Tata Institute of Fundamental Research, Bombay, 400 005, Homi Bhabha Road

来源：

JOURNAL OF ASTROPHYSICS AND ASTRONOMY | 1993年 / 14卷 / 3-4期

关键词：

X-RAYS; BINARY SYSTEM; ACCRETION DISK;

D O I：

10.1007/BF02702363

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is sometimes suggested that the change from the horizontal to the normal branch in the X-ray intensity-hardness ratio diagram of low mass X-ray binaries, is due to a change from a thin to a thick disk. It is shown here that wind from the hot thick disk depletes the amount of matter reaching the neutron star, thus causing the observed reduction of X-ray intensity as hardness ratio decreases in the normal branch.

引用

收藏

页码：135 / 139

页数：5

相关论文

共 10 条

[1] THE X-RAY HARDNESS RATIO VARIATION IN LOW-MASS X-RAY BINARIES [J].

APPARAO, KMV ;

TARAFDAR, SP .

ASTROPHYSICS AND SPACE SCIENCE, 1992, 189 (01) :89-94

[2] THE THEORY OF RADIATIVELY DRIVEN STELLAR WINDS .3. WIND MODELS WITH FINITE DISK CORRECTION AND ROTATION [J].

FRIEND, DB ;

ABBOTT, DC .

ASTROPHYSICAL JOURNAL, 1986, 311 (02) :701-707

[3] A 3RD X-RAY SPECTRAL-MODE IN SCORPIUS-X-1 - SIMILARITIES TO THE OTHER BRIGHT BULGE SOURCES [J].

HASINGER, G ;

PRIEDHORSKY, WC ;

MIDDLEDITCH, J .

ASTROPHYSICAL JOURNAL, 1989, 337 (02) :843-&

[4]

HASINGER G, 1987, IAU S, V125, P333

[5] BLACK-HOLES IN BINARY-SYSTEMS - INSTABILITY OF DISK ACCRETION [J].

LIGHTMAN, AP ;

EARDLEY, DM .

ASTROPHYSICAL JOURNAL, 1974, 187 (01) :L1-L3

[6] SOME EFFECTS OF ROTATION ON THE STRUCTURE AND DYNAMICS OF A RADIATION-DRIVEN WIND FROM A HOT STAR [J].

MARLBOROUGH, JM ;

ZAMIR, M .

ASTROPHYSICAL JOURNAL, 1984, 276 (02) :706-723

[7]

PRIEDHORSKY W, 1986, ASTROPHYS J, V306, P297

[8] 2-TEMPERATURE ACCRETION DISK MODEL FOR CYGNUS X-1 - STRUCTURE AND SPECTRUM [J].

SHAPIRO, SL ;

LIGHTMAN, AP ;

EARDLEY, DM .

ASTROPHYSICAL JOURNAL, 1976, 204 (01) :187-199

[9] A UNIFIED FORMULA FOR MASS-LOSS RATE OF O-STARS TO M-STARS [J].

TARAFDAR, SP .

ASTROPHYSICAL JOURNAL, 1988, 331 (02) :932-938

[10] CYGNUS X-1 - INTERPRETATION OF SPECTRUM AND ITS VARIABILITY [J].

THORNE, KS ;

PRICE, RH .

ASTROPHYSICAL JOURNAL, 1975, 195 (03) :L101-L105