LONG PERIOD WR BINARIES

被引:0
|
作者
ANNUK, K
机构
来源
IAU SYMPOSIA | 1991年 / 143期
关键词
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Now it is clear that there exist some long period (periods exceed a year) Wolf-Rayet binaries. This paper presents the results of our radial velocity study for three WR binaries: HD193077 (WN6 + O9), HD193793 (WC7 + O5-6) and HD192641 (WC7 + O9). Our spectroscopic observations confirm that HD193077 and HD193793 are long period systems with the periods of 1538 and 2886 days. Most likely, HD192641 is also a long period WR binary (P greater-than-or-equal-to 4400 days).
引用
收藏
页码:245 / 250
页数:6
相关论文
共 50 条
  • [21] TIMES OF MINIMA OF 2 WR ECLIPSING BINARIES
    STICKLAND, DJ
    PIKE, CD
    LLOYD, C
    ELLS, J
    OBSERVATORY, 1988, 108 (1086): : 151 - 154
  • [22] THE EVOLUTION OF WR+O BINARIES INTO MASSIVE X-RAY BINARIES
    HELLINGS, P
    DELOORE, C
    ASTRONOMY & ASTROPHYSICS, 1986, 161 (01) : 75 - 84
  • [23] Formation of long-period post-common-envelope binaries
    Belloni, Diogo
    Schreiber, Matthias R.
    Zorotovic, Monica
    ASTRONOMY & ASTROPHYSICS, 2024, 687
  • [24] CONSTRAINING THE DARK CUSP IN THE GALACTIC CENTER BY LONG-PERIOD BINARIES
    Alexander, Tal
    Pfuhl, Oliver
    ASTROPHYSICAL JOURNAL, 2014, 780 (02):
  • [25] The formation of long-period eccentric binaries with a helium white dwarf
    Siess, L.
    Davis, P. J.
    Jorissen, A.
    ASTRONOMY & ASTROPHYSICS, 2014, 565
  • [27] Spectroscopic binaries in globular clusters .2. A search for long-period binaries in M22
    Cote, P
    Pryor, C
    McClure, RD
    Fletcher, JM
    Hesser, JE
    ASTRONOMICAL JOURNAL, 1996, 112 (02): : 574 - +
  • [28] Spectroscopic searches for evolutionary orbital period changes in WR plus OB binaries: the case of V444 Cyg
    Shaposhnikov, I
    Cherepashchuk, A.
    Dodin, A.
    Postnov, K.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 526 (03) : 4529 - 4534
  • [29] Spectroscopic searches for evolutionary orbital period changes in WR plus OB binaries: the case of CQ Cep and CX Cep
    Shaposhnikov, I
    Cherepashchuk, A.
    Dodin, A.
    Postnov, K.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2023, 523 (01) : 1524 - 1537
  • [30] WR+O BINARIES OBSERVED FROM THE DAO
    HILL, GMJH
    UNDERHILL, AB
    WOLF-RAYET STARS: BINARIES, COLLIDING WINDS, EVOLUTION, 1995, (163): : 235 - 238