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

doi:10.1051/0004-6361:20040006

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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

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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.

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Y. I. Izotov, K. G. Noeske, N. G. Guseva, P. Papaderos, T. X. Thuan, K. J. Fricke. 2004-01-10. Discovery of the high--ionization emission line [Ne V] 3426 in the blue compact dwarf galaxy Tol 1214-277. https://doi.org/10.1051/0004-6361%3A20040006

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