Discovery of an ultra-luminous X-ray source candidate, ULX (X-8) in NGC 3384 with Chandra

被引:6
|
作者
Devi, A. Senorita [1 ]
Singh, K. Yugindro [2 ]
机构
[1] Assam Univ, Silchar, India
[2] Manipur Univ, Imphal, Manipur, India
关键词
Galaxies: individual (NGC 3384); X-rays: binaries; MASS BLACK-HOLES; ANTENNAE GALAXIES NGC-4038/4039; XMM-NEWTON OBSERVATIONS; NEARBY SPIRAL GALAXIES; SOURCE POPULATION; ACCRETION DISKS; VARIABILITY; SPECTRUM; CATALOG;
D O I
10.1007/s10509-014-2091-8
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The present paper aims to study the previously unstudied Chandra observed X-ray point sources of NGC 3384. While most of the point sources in NGC 3384 are hard X-ray binaries, we report here the discovery of a candidate Ultra-luminous X-ray source (ULX), X-8 in NGC 3384 during an effective 28.67 ks Chandra observation. ULX, X-8 is found to have its 0.3-10.0 keV luminosity similar to 1.52x10(39) ergs s(-1) and a bolometric luminosity similar to 2.43x10(39) ergs s(-1). The ULX is spectrally hard in X-rays, with I"similar to 1.97 when fitted with an absorbed powerlaw. The spectral property of this object, when fitted with an absorbed disk blackbody, appears to be consistent with nearly a 30M (aS (TM)) black hole accreting at similar to 0.58 times its Eddington luminosity. The lightcurve of this ULX source, X-8 has shown no signature of short-term variability in kilo-seconds time scales in the present available Chandra observation.
引用
收藏
页码:535 / 540
页数:6
相关论文
共 50 条
  • [41] Ionized Gas Kinematics around an Ultra-luminous X-Ray Source in NGC 5252: Additional Evidence for an Off-nuclear AGN
    Kim, Minjin
    Ho, Luis C.
    Im, Myungshin
    ASTROPHYSICAL JOURNAL LETTERS, 2017, 844 (02)
  • [42] X-ray spectral evolution in the ultraluminous X-ray source M33 X-8
    Middleton, Matthew J.
    Sutton, Andrew D.
    Roberts, Timothy P.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 417 (01) : 464 - 471
  • [43] Chandra observation of the X-ray source population of NGC 6946
    Holt, SS
    Schlegel, EM
    Hwang, U
    Petre, R
    ASTROPHYSICAL JOURNAL, 2003, 588 (02): : 792 - 800
  • [44] A luminous recurrent supersoft X-ray source in NGC 300
    Kong, AKH
    Di Stefano, R
    ASTROPHYSICAL JOURNAL, 2003, 590 (01): : L13 - L16
  • [45] A new luminous supersoft X-ray source in NGC 300
    Carpano, S.
    Wilms, J.
    Schirmer, M.
    Kendziorra, E.
    ASTRONOMY & ASTROPHYSICS, 2006, 458 (03) : 747 - 751
  • [46] SWIFT J1644+57: AN ULTRA-LUMINOUS X-RAY EVENT
    Socrates, Aristotle
    ASTROPHYSICAL JOURNAL LETTERS, 2012, 756 (01)
  • [47] LARGE HIGHLY IONIZED NEBULAE AROUND ULTRA-LUMINOUS X-RAY SOURCES
    Moon, Dae-Sik
    Harrison, Fiona A.
    Cenko, S. Bradley
    Shariff, Jamil A.
    ASTROPHYSICAL JOURNAL LETTERS, 2011, 731 (02)
  • [48] Evidence for intermediate mass black holes in ultra-luminous X-ray sources
    Miller, Jon M.
    NEW HORIZONS IN ASTRONOMY: FRANK N. BASH SYMPOSIUM 2005, 2006, 352 : 121 - 127
  • [49] Irradiation models for ultra-luminous X-ray sources and fits to HST data
    Copperwheat, C
    Cropper, M
    Soria, R
    Wu, K
    PROCEEDINGS OF THE X-RAY UNIVERSE 2005, VOLS 1 AND 2, 2006, 604 : 257 - +