39-D PERIOD IN CYG X-1

被引：7

作者：

WALKER, EN

WATSON, MG

HOLT, SS

机构：

[1] ROYAL GREENWICH OBSERV,HERSTMONCEUX,SUSSEX,ENGLAND

[2] UNIV LEICESTER,DEPT PHYS,LEICESTER LE1 7RH,W YORKSHIRE,ENGLAND

[3] NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771

来源：

NATURE | 1977年 / 270卷 / 5634期

关键词：

D O I：

10.1038/270229a0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

引用

页码：229 / 230

页数：2

共 14 条

[1] SEARCH FOR 3RD STAR IN CYGNUS X-1 SYSTEM [J].

ABT, HA ;

HINTZEN, P ;

LEVY, SG .

ASTROPHYSICAL JOURNAL, 1977, 213 (03) :815-817

[2] ORBITAL ELEMENTS AND AN ANALYSIS OF MODELS FOR HDE 226868 = CYGNUS X-1 [J].

BOLTON, CT .

ASTROPHYSICAL JOURNAL, 1975, 200 (02) :269-277

[3] DIMENSIONS OF BINARY-SYSTEM HDE 226868 = CYGNUS X-1 [J].

BOLTON, CT .

NATURE-PHYSICAL SCIENCE, 1972, 240 (102) :124-&

[4] OBSERVATIONS OF H ALPHA IN HDE 226868 [J].

BRUCATO, RJ ;

ZAPPALA, RR .

ASTROPHYSICAL JOURNAL, 1974, 189 (02) :L71-L74

[5]

GREY DF, 1973, ASTROPHYS J, V181, P523

[6] OPTICAL OBSERVATIONS AND MODEL FOR CYGNUS-X-1 [J].

HUTCHINGS, JB ;

CRAMPTON, D ;

GLASPEY, J ;

WALKER, GAH .

ASTROPHYSICAL JOURNAL, 1973, 182 (02) :549-557

[7]

KEMP J, 1977, IAU3060 CIRC

[8] EVIDENCE FOR A 39-D PERIOD IN CYG X-1 [J].

KEMP, JC ;

HERMAN, LC ;

RUDY, RJ ;

BARBOUR, MS .

NATURE, 1977, 270 (5634) :227-228

[9]

Lafler J., 1965, ASTROPHYS J SUPPL S, V11, P216

[10] X-RAY ABSORPTION EVENTS IN CYGNUS X-1 OBSERVED WITH COPERNICUS [J].

MASON, KO ;

HAWKINS, FJ ;

SANFORD, PW ;

MURDIN, P ;

SAVAGE, A .

ASTROPHYSICAL JOURNAL, 1974, 192 (02) :L65-L69

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