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Discovery of the high--ionization emission line [Ne V] 3426 in the blue compact dwarf galaxy Tol 1214-277 | Y. I. Izotov
; K. G. Noeske
; N. G. Guseva
; P. Papaderos
; T. X. Thuan
; K. J. Fricke
; | Date: |
10 Dec 2003 | Journal: | Astron.Astrophys. 415 (2004) L27 | Subject: | astro-ph | Affiliation: | Main Astronomical Observatory, Kyiv, Ukraine, Universitaets--Sternwarte, Goettingen, Germany, University of California, Santa Cruz, USA, University of Virginia, Charlottesville, USA | Abstract: | The discovery of the high-ionization [Ne V] 3426A emission line in the spectrum of the blue compact dwarf (BCD) galaxy Tol 1214-277 is reported. The detection of this line implies the presence of intense ionizing X-ray emission with a luminosity in the range 10^39-10^40 erg/s. Such a high X-ray luminosity cannot be reproduced by models of massive stellar populations. Other mechanisms, such as fast shocks or accretion of gas in high-mass X-ray binaries need to be invoked to account for the high intensity of the [Ne V] 3426A emission line. | Source: | arXiv, astro-ph/0401174 | Services: | Forum | Review | PDF | Favorites |
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