The orbital light curve of Aquila X-1

被引：0
|
作者：
Robinson, EL [1 ]
Welsh, WF [1 ]
Young, P [1 ]
机构：
[1] Univ Texas, Dept Astron, Austin, TX 78731 USA
来源：
X-RAY ASTRONOMY: STELLAR ENDPOINTS, AGN, AND THE DIFFUSE X-RAY BACKGROUND | 2001年 / 599卷
关键词：
X-ray binaries; soft X-ray transients; X-ray novae;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The R-band light curve of the X-ray nova/neutron-star binary Aql X-1 is dominated by ellipsoidal variations when it is at quiescence, although the ellipsoidal variations are severely distorted and have unequal maxima. The peak-to-peak amplitude of the variations is approximate to 0.25 mag. The orbital period measured from the ellipsoidal variations is consistent with the 18.95 hr period measured by Chevalier & Ilovaisky (1998); and the orbital inclination must be greater than 36, and probably lies between 36degrees and 55degrees. During outbursts the light curve of Aql X-1 is dominated by the "reflection effect," that is, by heating of the side of the companion star facing the neutron star.
引用
收藏
页码：902 / 905
页数：2
相关论文
共 50 条
  • [1] The orbital light curve of aquila X-1
    Welsh, WF
    Robinson, EL
    Young, P
    ASTRONOMICAL JOURNAL, 2000, 120 (02): : 943 - 949
  • [2] NATURE OF AQUILA X-1
    MARGON, B
    KATZ, JI
    PETRO, LD
    NATURE, 1978, 271 (5646) : 633 - 634
  • [3] Aquila X-1 in outburst and quiescence
    Garcia, MR
    Callanan, PJ
    McCarthy, J
    Eriksen, K
    Hjellming, RM
    ASTROPHYSICAL JOURNAL, 1999, 518 (01): : 422 - 427
  • [4] THE PULSED-LIGHT CURVE OF VELA X-1
    RAUBENHEIMER, BC
    ASTRONOMY & ASTROPHYSICS, 1990, 234 (1-2) : 172 - 176
  • [5] THE OPTICAL LIGHT-CURVE OF CYGNUS X-1
    LLOYD, C
    WALKER, EN
    PROCEEDINGS OF THE 23RD ESLAB SYMPOSIUM ON TWO TOPICS IN X-RAY ASTRONOMY, VOLS 1 AND 2: X-RAY BINARIES; AGN AND THE X-RAY BACKGROUND, 1989, 296 : 511 - 514
  • [6] THE PULSED-LIGHT CURVE OF VELA X-1
    RAUBENHEIMER, BC
    PROCEEDINGS OF THE 23RD ESLAB SYMPOSIUM ON TWO TOPICS IN X-RAY ASTRONOMY, VOLS 1 AND 2: X-RAY BINARIES; AGN AND THE X-RAY BACKGROUND, 1989, 296 : 595 - 599
  • [7] INTENSE X-RAY FLARES FROM AQUILA X-1 AND CIRCINUS X-1
    BUFF, J
    JERNIGAN, G
    LAUFER, B
    BRADT, H
    CLARK, GW
    LEWIN, WHG
    MATILSKY, T
    MAYER, W
    PRIMINI, F
    ASTROPHYSICAL JOURNAL, 1977, 212 (03): : 768 - 773
  • [8] WAS AN OUTBURST OF AQUILA X-1 A MAGNETIC FLARE?
    Soker, Noam
    ASTROPHYSICAL JOURNAL LETTERS, 2010, 721 (02) : L189 - L192
  • [9] MEASURING A TRUNCATED DISK IN AQUILA X-1
    King, Ashley L.
    Tomsick, John A.
    Miller, Jon M.
    Chenevez, Jerome
    Barret, Didier
    Boggs, Steven E.
    Chakrabarty, Deepto
    Christensen, Finn E.
    Craig, William W.
    Fuerst, Felix
    Hailey, Charles J.
    Harrison, Fiona A.
    Parker, Michael L.
    Stern, Daniel
    Romano, Patrizia
    Walton, Dominic J.
    Zhang, William W.
    ASTROPHYSICAL JOURNAL LETTERS, 2016, 819 (02)
  • [10] MEAN BLUE-LIGHT CURVE OF CYGNUS X-1
    WALKER, EN
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1976, 177 (02) : P63 - P65
12345