Evidence of a supernova origin for the black hole in the system GRO J1655-40

被引:164
作者
Israelian, G
Rebolo, R [1 ]
Basri, G
Casares, J
Martín, EL
机构
[1] Inst Astrofis Canarias, E-38200 La Laguna, Tenerife, Spain
[2] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA
关键词
D O I
10.1038/43625
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
Stars with masses greater than about ten solar masses are thought to end their lives either in a supernova(1) or in a direct gravitational collapse process(2), either of which could have a black hole as a remnant. But there is as yet no direct observational evidence to support either gravitational collapse in general or the formation of black hole remnants in particular. Here we report a large overabundance of oxygen, magnesium, silicon and sulphur in the atmosphere of the star orbiting a probable black hole in the binary system GRO J1655-40 (also known as Nova Scorpii 1994), These alpha-elements are six to ten times more abundant in the star's atmosphere than they are in the Sun's. We interpret these high abundances as evidence for supernova ejecta captured by the companion star. The relative abundances of these elements suggest that the supernova progenitor was in the mass range 25-40 solar masses.
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页码:142 / 144
页数:3
相关论文
共 26 条
[1]   ABUNDANCES OF THE ELEMENTS - METEORITIC AND SOLAR [J].
ANDERS, E ;
GREVESSE, N .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1989, 53 (01) :197-214
[2]  
ANDRILLAT Y, 1995, ASTRON ASTROPHYS SUP, V112, P475
[3]  
[Anonymous], MNRAS
[4]  
ARNETT WD, 1996, NUCLEOSYNTHESIS SUPE
[5]  
AVRETT EH, 1996, B AM ASTRON SOC, V28, P882
[6]  
BROWN GE, IN PRESS NEW ASTRON
[7]  
Carlsson M., 1986, Technical Report 33
[8]   NEW PRE-MAIN-SEQUENCE TRACKS FOR M-LESS-THAN-OR-EQUAL-TO-2.5M-CIRCLE-DOT AS TESTS OF OPACITIES AND CONVECTION MODEL [J].
DANTONA, F ;
MAZZITELLI, I .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1994, 90 (01) :467-500
[9]  
KISELMAN D, 1993, ASTRON ASTROPHYS, V275, P269
[10]  
KURCZ RL, 1993, ATLAS9 STELLAR ATMOS