Hostname: page-component-cc8bf7c57-qfg88 Total loading time: 0 Render date: 2024-12-12T07:59:54.266Z Has data issue: false hasContentIssue false
  • English
  • Français

Super-Eddington Sources in Galaxies

Published online by Cambridge University Press:  25 May 2016

G. Fabbiano
G. Fabbiano*
Affiliation:
Harvard-Smithsonian Center for Astrophysics 60 Garden St., Cambridge MA, 02138, USA

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Imaging X-ray observations have resolved X-ray sources in many nearby ‘normal’ galaxies. These sources are associated with different galaxian component, including: bulge and globular clusters(LMXB, e.g. in M31); the disk/arm component (LMXB, HMXB, SNR, SN, ISM shells); and low-luminosity AGN (see reviews in Fabbiano 1989; 1995; 1996). A number of these sources have X-ray luminosities in excess of the Eddington luminosity for 1 M⊙ accreting object (~ 1.3 × 1038ergs s−1), and have been called Super-Eddington sources. Nearly 100 Super-Eddington sources have been reported so far, based on Einstein and ROSAT images (see Fabbiano 1989; 1995; 1996; Makishima 1994). The number of these sources increases with the maximum distance of the galaxy sample considered (e.g. Read et al 97). This is in part due to confusion, but it is also true that considering the larger sample of galaxies one obtains in a larger volume of space the amount of these relatively rare sources would increase as well.

Type
Session 3: Diagnostics of High Gravity Objects with X- and Gamma Rays
Information
Symposium - International Astronomical Union , Volume 188: The Hot Universe , 1998 , pp. 93 - 96
Copyright
Copyright © Kluwer 1998 

References

Bregman, J.N., Cox, C.V., Tomisaka, K. 1993, Ap. J., 415, L79 Google Scholar
Bregman, J.N., and Pildis, R.A. 1992, Ap. J., 380, L107 Google Scholar
Canizares, C.R., Kriss, G.A., Feigelson, E.D. 1982, Ap. J., 253, L17 Google Scholar
Dahlem, M., Heckman, T.M., Fabbiano, G. 1995, Ap. J., 442, L49 Google Scholar
Elvis, M., and Fabbiano, G. 1997, in ‘Next Generation X-ray Observatory’, Workshop Proc., Univ. of Leicester, Turner, M.D.L. ed., p. 33 Google Scholar
Fabbiano, G. 1989, ARA&A, 27, 87 Google Scholar
Fabbiano, G. 1995, in ‘X-ray Binaries’, Lewin, W.H.G. et al eds., (Cambridge: University Press), p.390 Google Scholar
Fabbiano, G. 1996, in ‘Roentgenstrahlung from the Universe’, MPE Report No.263, Zimmerman, H.U., Truemper, J.E. and Yorke, H. eds., p.347 Google Scholar
Fabbiano, G., and Juda, J.Z. 1997, Ap. J., 476, 666 Google Scholar
Fabbiano, G., Schweizer, F., Mackie, G. 1997, Ap. J., 478, 542 Google Scholar
Fabbiano, G. and Trinchieri, G. 1987, Ap. J., 315, 46 Google Scholar
Long, K.S., D'Odorico, S., Charles, P.A., Dopita, M.A. 1981, Ap.J., 246, L61 Google Scholar
Okada, K, Mihara, T., and Makishima, K. 1994, in ‘Horizon of X-ray Astronomy’, Makino, F. and Ohashi, T. eds., (Tokyo: Universal Academy Press), p.515 Google Scholar
Makishima, K. 1994, in ‘Horizon of X-ray Astronomy’, Makino, F. and Ohashi, T. eds., (Tokyo: Universal Academy Press), p. 171 Google Scholar
Peres, G., Reale, F., Collura, A., Fabbiano, G. 1989, Ap. J., 336, 140 Google Scholar
Petre, R., Okada, K., Mihara, T., Makishima, K., and Colbert, E.J.M. 1994, PASJ, 46, L115 Google Scholar
Read, A.M., Ponman, T.J., Strickland, D.K. 1997, MNRAS, 286, 626 CrossRefGoogle Scholar
Schlegel, E.M., Petre, R., Colbert, E.J.M. 1996, Ap. J. 456, 187 Google Scholar
Takano, M., Mitsuda, K., Fukazawa, Y., Nagase, F. 1994, Ap. J., 436, L47 CrossRefGoogle Scholar
Yaqoob, T., Serlemitsos, P.J., Ptak, A., Mushotzky, R., Kunieda, H. and Terashima, Y. 1995, Ap. J., 455, 508 Google Scholar
Zimmerman, H.U. et al 1994, Nature, 367, 621 Google Scholar